Digitala Vetenskapliga Arkivet

Change search
Refine search result
123 1 - 50 of 101
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1.
    Alzghoul, Ahmad
    et al.
    Department of Information Technology, Division of Computing Science, Uppsala, Sweden.
    Backe, Björn
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Department of Information Technology, Division of Computing Science, Uppsala, Sweden.
    Byström, Arne
    Bosch Rexroth Mellansel AB, Mellansel, Sweden.
    Liljedahl, Bengt
    Bosch Rexroth Mellansel AB, Mellansel, Sweden.
    Comparing a knowledge-based and a data-driven method in querying data streams for system fault detection: A hydraulic drive system application2014In: Computers in industry (Print), ISSN 0166-3615, E-ISSN 1872-6194, Vol. 65, no 8, p. 1126-1135Article in journal (Refereed)
    Abstract [en]

    The field of fault detection and diagnosis has been the subject of considerable interest in industry. Fault detection may increase the availability of products, thereby improving their quality. Fault detection and diagnosis methods can be classified in three categories: data-driven, analytically based, and knowledge-based methods.

    In this work, we investigated the ability and the performance of applying two fault detection methods to query data streams produced from hydraulic drive systems. A knowledge-based method was compared to a data-driven method. A fault detection system based on a data stream management system (DSMS) was developed in order to test and compare the two methods using data from real hydraulic drive systems.

    The knowledge-based method was based on causal models (fault trees), and principal component analysis (PCA) was used to build the data-driven model. The performance of the methods in terms of accuracy and speed, was examined using normal and physically simulated fault data. The results show that both methods generate queries fast enough to query the data streams online, with a similar level of fault detection accuracy. The industrial applications of both methods include monitoring of individual industrial mechanical systems as well as fleets of such systems. One can conclude that both methods may be used to increase industrial system availability.

  • 2.
    Alzghoul, Ahmad
    et al.
    Department of Information Technology, Division of Computing Science, Room POL ITC 19134, Box 337, 751 05 Uppsala, Sweden.
    Backe, Björn
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Department of Information Technology, Division of Computing Science, Room POL ITC 19111, Box 337, 751 05 Uppsala, Sweden.
    Byström, Arne
    Bosch Rexroth Mellansel AB, SE-895 80 Mellansel, Sweden.
    Liljedahl, Bengt
    Bosch Rexroth Mellansel AB, SE-895 80 Mellansel, Sweden.
    Comparing a knowledge-based and a data-driven method in querying data streams for system fault detection: A hydraulic drive system application2014In: Computers in industry (Print), ISSN 0166-3615, E-ISSN 1872-6194, Vol. 65, no 8, p. 1126-1135Article in journal (Refereed)
    Abstract [en]

    The field of fault detection and diagnosis has been the subject of considerable interest in industry. Fault detection may increase the availability of products, thereby improving their quality. Fault detection and diagnosis methods can be classified in three categories: data-driven, analytically based, and knowledge-based methods. In this work, we investigated the ability and the performance of applying two fault detection methods to query data streams produced from hydraulic drive systems. A knowledge-based method was compared to a data-driven method. A fault detection system based on a data stream management system (DSMS) was developed in order to test and compare the two methods using data from real hydraulic drive systems. The knowledge-based method was based on causal models (fault trees), and principal component analysis (PCA) was used to build the data-driven model. The performance of the methods in terms of accuracy and speed, was examined using normal and physically simulated fault data. The results show that both methods generate queries fast enough to query the data streams online, with a similar level of fault detection accuracy. The industrial applications of both methods include monitoring of individual industrial mechanical systems as well as fleets of such systems. One can conclude that both methods may be used to increase industrial system availability

  • 3.
    Alzghoul, Ahmad
    et al.
    Department of Information Technology, Division of Computing Science, Uppsala, Sweden.
    Löfstrand, Magnus
    Department of Information Technology, Division of Computing Science, Uppsala, Sweden.
    Addressing concept drift to improve system availability by updating one-class data-driven models2015In: Evolving Systems, ISSN 1868-6478, E-ISSN 1868-6486, Vol. 6, no 3, p. 187-198Article in journal (Refereed)
    Abstract [en]

    Data-driven models have been used to detect system faults, thereby increasing industrial system availability. The ability to search data streams while dealing with concept drift are challenges for data-driven models. The objective of this work is to demonstrate a general method to manage concept drift when using one-class data-driven models. The method has been used to develop an automatically retrained and updated polygon-based model. In this paper, the available industrial data allowed for use of one-class data-driven models, and the polygon-based model was selected because it has previously been successful. Possible scenarios that allow one-class data-driven models to be retrained or updated were identified. Based on the identified scenarios, a method to automatically update a polygon-based model online is proposed. The method has been tested and verified using data collected from a Bosch Rexroth Mellansel AB hydraulic drive system. Data representing relevant faults was inserted into the data set in close collaboration with engineers from the company. The results show that the developed polygon-based model method was able to address the concept drift issue and was able to significantly improve the classification accuracy compared to the static polygon-based model. Thereby, the model could significantly improve industrial system availability when applied in the relevant production process. This paper shows that the developed polygon-based model requires small memory space while its updating procedure is simple and fast. Finally, the identified scenarios may be helpful as input for supporting other one-class data-driven models to cope with concept drift, thus increasing the generalizability of the results.

  • 4.
    Alzghoul, Ahmad
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Increasing availability of industrial systems through data stream mining2011In: Computers & industrial engineering, ISSN 0360-8352, E-ISSN 1879-0550, Vol. 60, no 2, p. 195-205Article in journal (Refereed)
    Abstract [en]

    Improving industrial product reliability, maintainability and thus availability is a challenging task for many industrial companies. In industry, there is a growing need to process data in real time, since the generated data volume exceeds the available storage capacity. This paper consists of a review of data stream mining and data stream management systems aimed at improving product availability. Further, a newly developed and validated grid-based classifier method is presented and compared to one-class support vector machine (OCSVM) and a polygon-based classifier.The results showed that, using 10% of the total data set to train the algorithm, all three methods achieved good (>95% correct) overall classification accuracy. In addition, all three methods can be applied on both offline and online data.The speed of the resultant function from the OCSVM method was, not surprisingly, higher than the other two methods, but in industrial applications the OCSVMs' comparatively long time needed for training is a possible challenge. The main advantage of the grid-based classification method is that it allows for calculation of the probability (%) that a data point belongs to a specific class, and the method can be easily modified to be incremental.The high classification accuracy can be utilized to detect the failures at an early stage, thereby increasing the reliability and thus the availability of the product (since availability is a function of maintainability and reliability). In addition, the consequences of equipment failures in terms of time and cost can be mitigated.

  • 5.
    Alzghoul, Ahmad
    et al.
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Increasing availability of industrial systems through data stream mining2011In: Computers & industrial engineering, ISSN 0360-8352, E-ISSN 1879-0550, Vol. 60, no 2, p. 195-205Article in journal (Refereed)
    Abstract [en]

    Improving industrial product reliability, maintainability and thus availability is a challenging task for many industrial companies. In industry, there is a growing need to process data in real time, since the generated data volume exceeds the available storage capacity. This paper consists of a review of data stream mining and data stream management systems aimed at improving product availability. Further, a newly developed and validated grid-based classifier method is presented and compared to one-class support vector machine (OCSVM) and a polygon-based classifier.

    The results showed that, using 10% of the total data set to train the algorithm, all three methods achieved good (>95% correct) overall classification accuracy. In addition, all three methods can be applied on both offline and online data.

    The speed of the resultant function from the OCSVM method was, not surprisingly, higher than the other two methods, but in industrial applications the OCSVMs' comparatively long time needed for training is a possible challenge. The main advantage of the grid-based classification method is that it allows for calculation of the probability (%) that a data point belongs to a specific class, and the method can be easily modified to be incremental.

    The high classification accuracy can be utilized to detect the failures at an early stage, thereby increasing the reliability and thus the availability of the product (since availability is a function of maintainability and reliability). In addition, the consequences of equipment failures in terms of time and cost can be mitigated.

  • 6.
    Alzghoul, Ahmad
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Backe, Björn
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Data stream forecasting for system fault prediction2012In: Computers & industrial engineering, ISSN 0360-8352, E-ISSN 1879-0550, Vol. 62, no 4, p. 972-978Article in journal (Refereed)
    Abstract [en]

    Competition among today’s industrial companies is very high. Therefore, system availability plays an important role and is a critical point for most companies. Detecting failures at an early stage or foreseeing them before they occur is crucial for machinery availability. Data analysis is the most common method for machine health condition monitoring. In this paper we propose a fault-detection system based on data stream prediction, data stream mining, and data stream management system (DSMS). Companies that are able to predict and avoid the occurrence of failures have an advantage over their competitors. The literature has shown that data prediction can also reduce the consumption of communication resources in distributed data stream processing.In this paper different data-stream-based linear regression prediction methods have been tested and compared within a newly developed fault detection system. Based on the fault detection system, three DSM algorithms outputs are compared to each other and to real data. The three applied and evaluated data stream mining algorithms were: Grid-based classifier, polygon-based method, and one-class support vector machines (OCSVM).The results showed that the linear regression method generally achieved good performance in predicting short-term data. (The best achieved performance was with a Mean Absolute Error (MAE) around 0.4, representing prediction accuracy of 87.5%). Not surprisingly, results showed that the classification accuracy was reduced when using the predicted data. However, the fault-detection system was able to attain an acceptable performance of around 89% classification accuracy when using predicted data.

  • 7.
    Alzghoul, Ahmad
    et al.
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Backe, Björn
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Data stream forecasting for system fault prediction2012In: Computers & industrial engineering, ISSN 0360-8352, E-ISSN 1879-0550, Vol. 62, no 4, p. 972-978Article in journal (Refereed)
    Abstract [en]

    Competition among today’s industrial companies is very high. Therefore, system availability plays an important role and is a critical point for most companies. Detecting failures at an early stage or foreseeing them before they occur is crucial for machinery availability. Data analysis is the most common method for machine health condition monitoring. In this paper we propose a fault-detection system based on data stream prediction, data stream mining, and data stream management system (DSMS). Companies that are able to predict and avoid the occurrence of failures have an advantage over their competitors. The literature has shown that data prediction can also reduce the consumption of communication resources in distributed data stream processing. In this paper different data-stream-based linear regression prediction methods have been tested and compared within a newly developed fault detection system. Based on the fault detection system, three DSM algorithms outputs are compared to each other and to real data. The three applied and evaluated data stream mining algorithms were: Grid-based classifier, polygon-based method, and one-class support vector machines (OCSVM). The results showed that the linear regression method generally achieved good performance in predicting short-term data. (The best achieved performance was with a Mean Absolute Error (MAE) around 0.4, representing prediction accuracy of 87.5%). Not surprisingly, results showed that the classification accuracy was reduced when using the predicted data. However, the fault-detection system was able to attain an acceptable performance of around 89% classification accuracy when using predicted data.

  • 8.
    Alzghoul, Ahmad
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics.
    Karlsson, Lennart
    Luleå University of Technology, Department of Engineering Sciences and Mathematics.
    Karlberg, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics.
    Data stream mining for increased functional product availability awareness2011In: Functional Thinking for Value Creation: Proceedings of the 3rd CIRP International Conference on Industrial Product Service Systems, Technische Universität Braunschweig, Braunschweig, Germany, May 5th - 6th, 2011 / [ed] Jürgen Hesselbach; Christoph Herrmann, Berlin: Encyclopedia of Global Archaeology/Springer Verlag, 2011, p. 237-241Conference paper (Refereed)
    Abstract [en]

    Functional Products (FP) and Product Service Systems (PSS) may be seen as integrated systems comprising hardware and support services. For such offerings, availability is key. Little research has been done on integrating Data Stream Management Systems (DSMS) for monitoring (parts of) a FP to improve system availability. This paper introduces an approach for how data stream mining may be applied to monitor hardware being part of a Functional Product. The result shows that DSMS have the potential to significantly support continuous availability awareness of industrial systems, especially important when the supplier is to supply a function with certain availability.

  • 9.
    Alzghoul, Ahmad
    et al.
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Karlsson, Lennart
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Karlberg, Magnus
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Data stream mining for increased functional product availability awareness2011In: Functional Thinking for Value Creation: Proceedings of the 3rd CIRP International Conference on Industrial Product Service Systems, Technische Universität Braunschweig, Braunschweig, Germany, May 5th - 6th, 2011 / [ed] Hesselbach, J. & Herrmann, C., Springer Berlin/Heidelberg, 2011, p. 237-241Conference paper (Refereed)
    Abstract [en]

    Functional Products (FP) and Product Service Systems (PSS) may be seen as integrated systems comprising hardware and support services. For such offerings, availability is key. Little research has been done on integrating Data Stream Management Systems (DSMS) for monitoring (parts of) a FP to improve system availability. This paper introduces an approach for how data stream mining may be applied to monitor hardware being part of a Functional Product. The result shows that DSMS have the potential to significantly support continuous availability awareness of industrial systems, especially important when the supplier is to supply a function with certain availability.

  • 10.
    Eklund, Patrik
    et al.
    Department of Computing Science, Umeå University, Umeå, Sweden.
    Johansson, Mats
    Department of Computing Science, Umeå University, Umeå, Sweden.
    Löfstrand, Magnus
    Örebro University, School of Science and Technology.
    Winter, Michael
    Department of Computer Science, Brock University, St. Catharines, Ontario, Canada.
    Many-Valued and Many-Sorted Structure Relations2019In: Proceedings of the 21st International Dependency and Structure Modeling Conference / [ed] Harold (Mike) Stowe; Tyson R. Browning; Steven D. Eppinger; Jintin Tran; Paulo Montijo, 2019, p. 141-150Conference paper (Refereed)
    Abstract [en]

    System-of-systems engineering and related models of engineering design require intertwining of structures, respectively, at least for components in products, engineering and business activities, and people involved in those activities as also specifically connected with production and its management. In this paper we describe the logical machinery of system-of-systems engineering and related models of engineering design in sufficient so as to enable to describe the algebraic foundation of the many-valued logic that is inherent in these systems and structures. We are thus essentially unravelling the hidden and underlying logic of these systems and their related information and process structures, focusing on interaction between elements of the system

  • 11.
    Eklund, Patrik
    et al.
    Department of Computing Science, Umeå University, Umeå, Sweden.
    Löfstrand, Magnus
    Örebro University, School of Science and Technology.
    Many-valued logic in manufacturing2016In: 11th International Symposium Advances in Artificial Intelligence and Applications, 2016Conference paper (Refereed)
  • 12.
    Eklund, Patrik
    et al.
    Computer Science, Logic and applications, Umeå University, Umeå, Sweden.
    Löfstrand, Magnus
    Örebro University, School of Science and Technology.
    Uncertainty of value and structure2019In: Proceedings of the 11th Conference of the European Society for Fuzzy Logic and Technology (EUSFLAT 2019) / [ed] Novak, V; Marik, V; Stepnicka, M; Navara, M; Hurtik, P, Atlantis Press, 2019, Vol. 1, p. 370-375Conference paper (Refereed)
    Abstract [en]

    In this paper we argue that `uncertainty of information' traditionally focuses more on `uncertainty' leaving `information' mostly as unravelled. We also aim to explain why that is so, and we then provide suggestions on how to overcome the situation, as related to applications involving information structures.

  • 13.
    Johanson, Mathias
    et al.
    Alkit Communications AB.
    Johansson, Lars-Åke
    Alkit Communications AB.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Karlsson, Lennart
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Turning an hourglass into a diamond: inter-organizational collaborative work in the enterprise of the future2011Conference paper (Refereed)
  • 14. Johanson, Mathias
    et al.
    Johansson, Lars-Åke
    Löfstrand, Magnus
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Karlsson, Lennart
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Turning an hourglass into a diamond inter-organizational collaborative work in the enterprise of the future2011In: 15th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI 2011), 2011Conference paper (Refereed)
  • 15.
    Johanson, Mathias
    et al.
    Alkit Communications AB, Mölndal, Sweden .
    Löfstrand, Magnus
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden .
    Karlsson, Lennart
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden .
    Collaborative innovation through distributed engineering services2009In: Proceedings of International Multi-Conference on Engineering and Technological Innovation, 2009Conference paper (Refereed)
    Abstract [en]

    Rapid advancement in information and communication technology in recent decades has presented new opportunities for carrying out sophisticated engineering work in distributed teams, using tools and techniques collectively referred to as Distributed Collaborative Engineering (DCE). This kind of on-line collaboration not only cuts costs due to reduced travel, but also fosters innovation in product development, by bringing together groups of people in collaborative teams with complementary competences, that would otherwise be difficult to realize. Moreover, the convergence of technologies for telecommunication and information technology now makes it possible for companies specialized in collaboration technology to deliver sophisticated services for DCE, which can be purchased by engineering companies on a pay-per-use basis. By outsourcing the installation, management and support of the collaboration tools, the engineering companies can focus on their product development projects while harnessing the full potential of DCE to become more efficient and competitive. We believe that this new way of conducting engineering work will be an important key to innovation in the future. In this paper, we analyze the requirements for delivering DCE as a service and describe the implications this has in terms of systems design, business models and competence requirements. Furthermore, in addition to the primary return on investment in DCE services, we cite cost reductions and reduced CO2 emissions as further benefits.

    Download full text (pdf)
    Collaborative innovation through distributed engineering services
  • 16.
    Johanson, Mathias
    et al.
    Alkit Communications AB.
    Löfstrand, Magnus
    Karlsson, Lennart
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Collaborative innovation through distributed engineering services2009Conference paper (Refereed)
    Abstract [en]

    Rapid advancement in information and communication technology in recent decades has presented new opportunities for carrying out sophisticated engineering work in distributed teams, using tools and techniques collectively referred to as Distributed Collaborative Engineering (DCE). This kind of on-line collaboration not only cuts costs due to reduced travel, but also fosters innovation in product development, by bringing together groups of people in collaborative teams with complementary competences, that would otherwise be difficult to realize. Moreover, the convergence of technologies for telecommunication and information technology now makes it possible for companies specialized in collaboration technology to deliver sophisticated services for DCE, which can be purchased by engineering companies on a pay-per-use basis. By outsourcing the installation, management and support of the collaboration tools, the engineering companies can focus on their product development projects while harnessing the full potential of DCE to become more efficient and competitive. We believe that this new way of conducting engineering work will be an important key to innovation in the future. In this paper, we analyze the requirements for delivering DCE as a service and describe the implications this has in terms of systems design, business models and competence requirements. Furthermore, in addition to the primary return on investment in DCE services, we cite cost reductions and reduced CO2 emissions as further benefits.

    Download full text (pdf)
    FULLTEXT01
  • 17.
    Karlberg, Magnus
    et al.
    Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Luleå University of Technology, Luleå, Sweden.
    Marjavaara, Daniel
    LKAB, Kiruna, Sweden.
    Lundström, T. Staffan
    Luleå University of Technology, Luleå, Sweden.
    Simulation driven processing function development, offering and operation2012In: ASME 2012 International Mechanical Engineering Congress and Exposition, Proceedings (IMECE2012), New York, USA: ASME Press, 2012, Vol. 3, p. 1561-1572Conference paper (Refereed)
    Abstract [en]

    In today’s industry, functional provision is becoming more and more important, necessitating increased simulation support. In this paper, the objective is to present a modeling and simulation approach for simulation-driven design (SDD) to support function development. The scope of this paper is simulation support for developing hardware equipment used in processing industry. The research is founded on industrial needs identified through two parallel interview-based studies in the Swedish process industry. Both companies explore doing business with functional products rather than hardware, in scenarios where the responsibility for and availability of the functions may remain with the service provider. One as-is and one future (to-be) scenario are presented. A decomposition of a general processing function (applicable to both companies) describes how the companies transfer machine input to output specifications. The decomposition includes customer and provider value and the paper demonstrates, as part of the results and based on the SDD approach, how that value may be increased through evaluation and prioritization. Additionally, the SDD approach shows that it is possible to identify a set of solutions which meet the specified requirements, supporting evaluation and prioritization of business offers and activities.

    Download full text (pdf)
    Stimulation driven processing function development, offering and operation
  • 18.
    Karlberg, Magnus
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Marjavaara, Daniel
    LKAB, Kiruna, Sweden.
    Lundström, T. Staffan
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.
    Simulation driven processing function development, offering and operation2012In: Proceedings of the ASME 2012 International Mechanical Engineering Congress & Exposition IMECE2012: November 9-15, 2012, Houston, Texas, USA, New York: American Society of Mechanical Engineers , 2012, Vol. 3, p. 1561-1572, article id IMECE2012-87548Conference paper (Refereed)
    Abstract [en]

    In today’s industry, functional provision is becoming more and more important, necessitating increased simulation support. In this paper, the objective is to present a modeling and simulation approach for simulation-driven design (SDD) to support function development. The scope of this paper is simulation support for developing hardware equipment used in processing industry. The research is founded on industrial needs identified through two parallel interview-based studies in the Swedish process industry. Both companies explore doing business with functional products rather than hardware, in scenarios where the responsibility for and availability of the functions may remain with the service provider. One as-is and one future (to-be) scenario are presented. A decomposition of a general processing function (applicable to both companies) describes how the companies transfer machine input to output specifications. The decomposition includes customer and provider value and the paper demonstrates, as part of the results and based on the SDD approach, how that value may be increased through evaluation and prioritization. Additionally, the SDD approach shows that it is possible to identify a set of solutions which meet the specified requirements, supporting evaluation and prioritization of business offers and activities.

    Download full text (pdf)
    fulltext
  • 19.
    Karlberg, Magnus
    et al.
    Division of Product and Production Development, Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Division of Product and Production Development, Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Sandberg, Stefan
    PM/PD Press Hardening Tech Centers, Tool CAE Analyst, GESTAMP HardTech AB, Luleå, Sweden .
    Lundin, Michael
    Division of Product and Production Development, Computer Aided Design, Lulea University of Technology, Luleå, Sweden.
    State of the art in simulation driven design2013In: International Journal of Product Development, ISSN 1477-9056, E-ISSN 1741-8178, Vol. 18, no 1, p. 68-87Article in journal (Refereed)
    Abstract [en]

    During the last few decades, and in order to increase product development efficiency, simulations strategies have been developed to guide designers towards better solutions rather than to verify suggested and basically unevaluated solutions. Such approaches are often called Simulation Driven Design (SDD), which is of interest in this review. The objective of this paper is to show the research evolution of SDD and identify the state of the art in SDD methodology. The literature review comprises several hundred references, of which 79 are included in this paper. The results comprise the state of the art in simulation driven design including the history, various definitions, criteria and effects of using SDD approaches.

  • 20.
    Karlberg, Magnus
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Sandberg, Stefan
    PM/PD Press Hardening Tech Centers, Tool CAE Analyst, GESTAMP HardTech AB, SE-971 25 Luleå, Sweden.
    Lundin, Michael
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    State of the art in simulation-driven design2013In: International Journal of Product Development, ISSN 1477-9056, E-ISSN 1741-8178, Vol. 18, no 1, p. 68-87Article in journal (Refereed)
    Abstract [en]

    During the last few decades, and in order to increase product development efficiency, simulations strategies have been developed to guide designers towards better solutions rather than to verify suggested and basically unevaluated solutions. Such approaches are often called Simulation Driven Design (SDD), which is of interest in this review. The objective of this paper is to show the research evolution of SDD and identify the state of the art in SDD methodology. The literature review comprises several hundred references, of which 79 are included in this paper. The results comprise the state of the art in simulation driven design including the history, various definitions, criteria and effects of using SDD approaches.

  • 21.
    Karlsson, Lennart
    et al.
    Luleå University of Technology, Luleå, Sweden.
    Karlberg, Magnus
    Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Luleå University of Technology, Luleå, Sweden.
    Editorial2013In: International Journal of Product Development, ISSN 1477-9056, E-ISSN 1741-8178, Vol. 18, no 1, p. 1-2Article in journal (Refereed)
    Download full text (pdf)
    Editorial
  • 22.
    Karlsson, Lennart
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Karlberg, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Editorial2013In: International Journal of Product Development, ISSN 1477-9056, E-ISSN 1741-8178, Vol. 18, no 1, p. 1-2Article in journal (Other academic)
  • 23.
    Karlsson, Lennart
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Lindström, John
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Functional Products - Goodbye to the industrial age2012In: Ericsson Business Review, ISSN 1653-9486, Vol. 18, no 2, p. 21-24Article in journal (Other (popular science, discussion, etc.))
    Download full text (pdf)
    fulltext
  • 24.
    Karlsson, Lennart
    et al.
    Luleå University of Technology (LTU), Luleå, Sweden.
    Lindström, John
    Luleå University of Technology (LTU), Luleå, Sweden.
    Löfstrand, Magnus
    Luleå University of Technology (LTU), Luleå, Sweden.
    Functional Products: Goodbye to the industrial age2012In: Ericsson Business Review, ISSN 1653-9486, Vol. 18, no 2, p. 21-24Article in journal (Other (popular science, discussion, etc.))
  • 25.
    Karlsson, Lennart
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Larsson, Andreas
    Larsson, Tobias
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Innovation and Design.
    Törlind, Peter
    Elfström, Bengt-Olof
    Isaksson, Ola
    Information driven collaborative engineering: enabling functional product innovation2005In: Challenges in Collaborative Engineering: CCE '05 ; the knowledge perspective in collabotative engineering ; proceedings of the international workshop, 14th - 15th April 2005, Sopron, Hungary in conjunction with DDECS '05 / [ed] Gianni Jacucci, Interprint , 2005Conference paper (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 26.
    Karlsson, Lennart
    et al.
    Polhem Laboratory, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Polhem Laboratory, Luleå University of Technology, Luleå, Sweden.
    Larsson, Andreas
    Polhem Laboratory, Luleå University of Technology, Luleå, Sweden.
    Törlind, Peter
    Polhem Laboratory, Luleå University of Technology, Luleå, Sweden.
    Larsson, Tobias
    Polhem Laboratory, Luleå University of Technology, Luleå, Sweden.
    Elfström, Bengt-Olof
    Volvo Aero Corporation, Trollhättan, Sweden.
    Isaksson, Ola
    Volvo Aero Corporation, Trollhättan, Sweden.
    Information driven collaborative engineering: enabling functional product innovation2005In: Challenges in Collaborative Engineering - CCE '05: the knowledge perspective in collaborative engineering : proceedings of the International Workshop 14th-15th April 2005, Sopron, Hungary in conjunction with DDECS '05 / [ed] Gianni Jacucci, Adam Pawlak, Kurt Sandkuhl, Jönköping, Sweden: Department of Computer & Electrical Engineering, School of Engineering, Jönköping University , 2005Conference paper (Refereed)
    Abstract [en]

    This paper discusses Information Driven Collaborative Engineering (IDCE) as an enabler of Functional Product Innovation (FPI). It discusses challenges that arise in functional product development and how distributed collaborative work will be affected. Finally the paper proposes bringing the domains of Distributed Collaborative Engineering (DCE) and Knowledge Enabled Engineering (KEE) together to form IDCE, in order to meet these challenges.

    Download full text (pdf)
    Information driven collaborative engineering: enabling functional product innovation
  • 27.
    Karlsson, Lennart
    et al.
    The Faste Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Pahkamaa, Andreas
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Karlberg, Magnus
    The Faste Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    The Faste Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Goldak, John
    Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, Canada .
    Pavasson, Jonas
    The Faste Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Mechanics of materials and structures: a simulation-driven design approach2011In: Journal of Mechanics of Materials and Structures, ISSN 1559-3959, E-ISSN 2157-5428, Vol. 6, no 1-4, p. 277-301Article in journal (Refereed)
    Abstract [en]

    Engineering product development has developed considerably over the past decade. In order for industry to keep up with continuously changing requirements, it is necessary to develop new and innovative simulation methods. However, few tools and methods for simulation-driven design have been applied in industrial settings and proven to actually drive the development and selection of the ideal solution. Such tools, based on fundamental equations, are the focus of this paper. In this paper the work is based on two cases of mechanics of materials and structures: welding and rotor dynamical simulations. These two examples of simulation-driven design indicate that a larger design space can be explored and that more possible solutions can be evaluated. Therefore, the approach improves the probability of innovations and finding optimal solutions. A calibrated block dumping approach can be used to increase the efficiency of welding simulations when many simulations are required.

  • 28.
    Karlsson, Lennart
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Pahkamaa, Andreas
    Luleå University of Technology.
    Karlberg, Magnus
    Luleå University of Technology.
    Löfstrand, Magnus
    Luleå University of Technology.
    Goldak, John
    Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, ON, K1S 5B6, Canada.
    Pavasson, Jonas
    Luleå University of Technology.
    Mechanics of materials and structures: a simulation-driven design approach2011In: Journal of Mechanics of Materials and Structures, ISSN 1559-3959, E-ISSN 2157-5428, Vol. 6, no 1-4, p. 277-301Article in journal (Refereed)
    Abstract [en]

    Engineering product development has developed considerably over the past decade. In order for industry to keep up with continuously changing requirements, it is necessary to develop new and innovative simulation methods. However, few tools and methods for simulation-driven design have been applied in industrial settings and proven to actually drive the development and selection of the ideal solution. Such tools, based on fundamental equations, are the focus of this paper. In this paper the work is based on two cases of mechanics of materials and structures: welding and rotor dynamical simulations. These two examples of simulation-driven design indicate that a larger design space can be explored and that more possible solutions can be evaluated. Therefore, the approach improves the probability of innovations and finding optimal solutions. A calibrated block dumping approach can be used to increase the efficiency of welding simulations when many simulations are required.

  • 29.
    Kyösti, Petter
    et al.
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Reed, Sean
    Nottingham Transportation Engineering Centre, University of Nottingham, Nottingham, U.K..
    Löfstrand, Magnus
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Andrews, John
    Nottingham Transportation Engineering Centre, University of Nottingham, Nottingham, U.K..
    Karlsson, Lennart
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Dunnett, Sarah
    Department of Aeronautical and Automotive Engineering, Loughborough University, Loughborough, U.K..
    Simulation of industrial support systems in the context of functional products2011In: Proceedings of the 19th AR2TS Advances in Risk and Reliability Technology Symposium / [ed] Darren Prescott, Rasa Remenyte-Prescott, Nottingham: University of Nottingham , 2011, p. 275-288Conference paper (Refereed)
    Abstract [en]

    Functional Products, consisting of hardware and service support systems owned by the supplier, are sold to customers with a guaranteed availability of the function. The availability achieved is dependent on the reliability of both hardware and the service support system. The reliability of the latter can be defined as its ability to provide the required maintenance services in a timely manner. This paper reports simulation of a service support system from an industrial case study in order to predict its reliability. To identify and develop a suitable case together with an industrial partner company, a number of phone meetings were held in order to explain the research question, interview knowledgeable people and plan on-site visits and interviews. A number of interviews face to face were carried out with the industrial partners, where the goal was to obtain enough information to be able to model the support system correctly. The research involved both qualitative information gathering and applied computer aided simulation. An improved model for simulating a service support system is developed that considers the context in which the maintenance procedures are performed within a Functional Product. A software implementation of the model, developed by the authors, is applied to simulate the case study service support system in various scenarios such as different personnel availability and number of systems supported. The results show how the modeling can be used to improve and predict the reliability of the service support system

    Download full text (pdf)
    Simulation of Industrial Support Systems in the Context of Functional Products
  • 30.
    Kyösti, Petter
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Reed, Sean
    University of Notttingham.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Andrews, John
    University of Notttingham.
    Karlsson, Lennart
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Dunnett, Sarah
    Loughborough University.
    Simulation of industrial support systems in the context of functional products2011In: Proceedings of the 19th AR2TS Advances in Risk and Reliability Technology Symposium: 12 - 14 April 2011, [Swan's Nest Hotel, Stratford-upon-Avon, Nottigham: University of Nottingham , 2011Conference paper (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 31.
    Larsson, Andreas
    et al.
    Polhem Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Törlind, Peter
    Polhem Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Bergström, Mattias
    Polhem Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Polhem Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Karlsson, Lennart
    Polhem Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Design for versatility: the changing face of workspaces for collaborative design2005In: Proceedings ICED 05, the 15th International Conference on Engineering Design / [ed] Samuel, A. & Lewis, W. (eds.), Melbourne: The Institution of Engineers, Australia , 2005Conference paper (Refereed)
    Abstract [en]

    In a fiercely competitive business climate, which is increasingly characterized by global alliances, partnerships and outsourcing agreements, companies struggle to decrease the negative impact of geographic distance on development efforts. The role of workspaces for collaborative design is gaining considerable attention, and there is currently an increasing interest in moving from individual tools or technologies to a more inclusive view of collaborative workspaces. This paper reports on the underlying motivation and justification for a new collaborative design studio at Luleå University of Technology, Sweden. The studio provides a rapid-response environment, in which the significance of issues raised through ethnographic observations of engineering work can be evaluated and solutions offered.

    Download full text (pdf)
    Design for versatility
  • 32. Larsson, Andreas
    et al.
    Törlind, Peter
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Innovation and Design.
    Bergström, Mattias
    Löfstrand, Magnus
    Karlsson, Lennart
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Design for versatility: the changing face of workspaces for collaborative design2005In: 15th International Conference on Engineering Design - ICED 05: 15 - 28 August 2005 / [ed] Andrew Samuel; William Lewis, Barton: Institution of Engineers, Australia , 2005Conference paper (Refereed)
    Abstract [en]

    In a fiercely competitive business climate, which is increasingly characterized by global alliances, partnerships and outsourcing agreements, companies struggle to decrease the negative impact of geographic distance on development efforts. The role of workspaces for collaborative design is gaining considerable attention, and there is currently an increasing interest in moving from individual tools or technologies to a more inclusive view of collaborative workspaces. This paper reports on the underlying motivation and justification for a new collaborative design studio at Luleå University of Technology, Sweden. The studio provides a rapid-response environment, in which the significance of issues raised through ethnographic observations of engineering work can be evaluated and solutions offered.

    Download full text (pdf)
    FULLTEXT01
  • 33.
    Larsson, Daniel
    et al.
    Polhem Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Polhem Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Åkerström, Patrik
    Polhem Laboratory, Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Computer visualisations in design for maintainability2000Report (Other academic)
    Abstract [en]

    The main goal of research at the Polhem Laboratory is to develop technologies for product development and manufacturing through integration of design, development, manufacturing, materials engineering and maintenance in Swedish industry. Concurrent engineering, which is a central theme of this research, is instrumental for developing products with shorter lead times at lower cost and for adapting products for manufacturing and maintenance. One purpose of the work presented was to show its applications in the field of Design For Maintainability where computer visualisations might improve the early design process. Another purpose of this work was to use modern information technology, and especially computer graphics, to develop a method to visualize the disassembly / assembly of a mechanical product. An important feature of this work was that 'visualizations,' rather then plain animations, were to be developed; the difference being that visualizations includes information about tools, times and explanations aswell as images of the moving parts. Integrating the use of conventional CAD-programmes with the use of animation programmes also makes it easier to use older models in new projects and thereby shortening lead times.

  • 34.
    Larsson, Daniel
    et al.
    Luleå University of Technology.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Åkerström, Patrik
    Luleå University of Technology.
    Computer visualisations in design for maintainability2000Report (Other academic)
    Abstract [en]

    The main goal of research at the Polhem Laboratory is to develop technologies for product development and manufacturing through integration of design, development, manufacturing, materials engineering and maintenance in Swedish industry. Concurrent engineering, which is a central theme of this research, is instrumental for developing products with shorter lead times at lower cost and for adapting products for manufacturing and maintenance. One purpose of the work presented was to show its applications in the field of Design For Maintainability where computer visualisations might improve the early design process. Another purpose of this work was to use modern information technology, and especially computer graphics, to develop a method to visualize the disassembly / assembly of a mechanical product. An important feature of this work was that 'visualizations,' rather then plain animations, were to be developed; the difference being that visualizations includes information about tools, times and explanations as well as images of the moving parts. Integrating the use of conventional CAD-programmes with the use of animation programmes also makes it easier to use older models in new projects and thereby shortening lead times.

  • 35. Larsson, Tobias
    et al.
    Löfstrand, Magnus
    Larsson, Andreas
    Project: Service Concept Design - NFFP2006Other (Other (popular science, discussion, etc.))
    Abstract [en]

    The project aim at strengthen the aerospace industry competence within Functional Product Development. The approach is activity based modelling, simulation and visualization of hardware based services in the cocnept phase of the product development process.

  • 36.
    Lindström, John
    et al.
    Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Uppsala DataBase Laboratory (UDBL), Uppsala University, Uppsala, Sweden.
    Kalhori, Vahid
    AB Sandvik Coromant, Sandviken, Sweden.
    Helgoson, Martin
    AB Sandvik Coromant, Sandviken, Sweden.
    Nyström, Mattias
    Masticon AB, Ekerö, Sweden.
    Liljedahl, Bengt
    Bosch Rexroth Mellansel AB, Mellansel, Sweden.
    Mäki, Rikard
    Volvo Construction Equipment, Eskilstuna, Sweden.
    Karlsson, Lennart
    UDBL, Uppsala University, Uppsala, Sweden.
    A function innovation model for the manufacturing industry2016In: Journal of Multi Business Model Innovation and Technology, ISSN 2245-8832, Vol. 3, no 1, p. 1-28Article in journal (Refereed)
    Abstract [en]

    The paper addresses the need for innovation in order to achieve sustainable growth and business development within the manufacturing industry, and further how that can be enabled by striving towards functions. Adopting an open perspective, the paper proposes a function innovation model involving academia, potential function providers and customers in order to create a long-term win-win situation between function providers and their customers.

  • 37.
    Lindström, John
    et al.
    Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
    Löfstrand, Magnus
    Uppsala University.
    Kalhori, Vahid
    AB Sandvik Coromant, Sandviken.
    Helgoson, Martin
    AB Sandvik Coromant, Sandviken.
    Nyström, Mattias
    Masticon AB.
    Liljedahl, Bengt
    Bosch Rexroth Mellansel AB.
    Mäki, Rikard
    Volvo Construction Equipment.
    Karlsson, Lennart
    Uppsala University.
    A function innovation model for the manufacturing industry2016In: Journal of Multi Business Model Innovation and Technology, ISSN 2245-456X, Vol. 3, no 1, p. 1-28, article id 1Article in journal (Refereed)
    Abstract [en]

    The paper addresses the need for innovation in order to achieve sustainable growth and business development within the manufacturing industry, and further how that can be enabled by striving towards functions. Adopting an open perspective, the paper proposes a function innovation model involving academia, potential function providers and customers in order to create a long-term win-win situation between function providers and their customers.

  • 38.
    Lindström, John
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Karlberg, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Karlsson, Lennart
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    A development process for Functional Products: hardware, software, service support system and management of operation2012In: International Journal of Product Development, ISSN 1477-9056, E-ISSN 1741-8178, Vol. 16, no 3/4, p. 284-303Article in journal (Refereed)
    Abstract [en]

    The development process for a Functional Product (FP) is complex and there is a need to coordinate, monitor, control and share information as well as to communicate properly among the parties involved in the process. This paper proposes a conceptual development process to manage the FP development, including development of hardware, software, service support system, and how to manage the operation of an FP. Further, challenges related to the integrated development of FPs are also discussed.

  • 39.
    Lindström, John
    et al.
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Karlberg, Magnus
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Karlsson, Lennart
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    A development process for Functional Products: hardware, software, service support system and management of operation2012In: International Journal of Product Development, ISSN 1477-9056, E-ISSN 1741-8178, Vol. 16, no 3/4, p. 284-303Article in journal (Refereed)
    Abstract [en]

    The development process for a Functional Product (FP) is complex and there is a need to coordinate, monitor, control and share information as well as to communicate properly among the parties involved in the process. This paper proposes a conceptual development process to manage the FP development, including development of hardware, software, service support system, and how to manage the operation of an FP. Further, challenges related to the integrated development of FPs are also discussed.

  • 40.
    Lindström, John
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Karlberg, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Karlsson, Lennart
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Functional product development: what information should be shared during the development process?2012In: International Journal of Product Development, ISSN 1477-9056, E-ISSN 1741-8178, Vol. 16, no 2, p. 95-111Article in journal (Refereed)
    Abstract [en]

    The development process for a Functional Product (FP) is complex and there is a need to share information as well as to communicate it among the parties involved in the process. The paper concerns shared information that is of specific interest when developing FPs, in contrast to information that must be shared during a general product or service development process. The findings are compiled in a conceptual table comprising such specific information items pertaining to both the initial development as well as post development parts of an FPs lifecycle. This table can be used as an aid to any development process or method, as it points out information items that must necessarily be shared, but not how they to be shared.

  • 41.
    Lindström, John
    et al.
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Karlberg, Magnus
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Karlsson, Lennart
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Functional product development: what information should be shared during the development process?2012In: International Journal of Product Development, ISSN 1477-9056, E-ISSN 1741-8178, Vol. 16, no 2, p. 95-111Article in journal (Refereed)
    Abstract [en]

    The development process for a Functional Product (FP) is complex and there is a need to share information as well as to communicate it among the parties involved in the process. The paper concerns shared information that is of specific interest when developing FPs, in contrast to information that must be shared during a general product or service development process. The findings are compiled in a conceptual table comprising such specific information items pertaining to both the initial development as well as post development parts of an FPs lifecycle. This table can be used as an aid to any development process or method, as it points out information items that must necessarily be shared, but not how they to be shared.

  • 42.
    Lindström, John
    et al.
    Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Uppsala University, Uppsala, Sweden.
    Reed, Sean
    Nottingham Transportation Engineering Centre (NTEC), University of Nottingham, Nottingham, UK.
    Alzghoul, Ahmad
    Uppsala DataBase Laboratory (UDBL), Uppsala University, Uppsala, Sweden.
    Use of Cloud Services in Functional Products: Availability Implications2014In: Product Services Systems and Value Creation: Proceedings of the 6th CIRP Conference on Industrial Product-Service Systems, Elsevier, 2014, Vol. 16, p. 368-372Conference paper (Refereed)
    Abstract [en]

    The paper addresses the potential use of cloud services in Functional Products (FP) and its possible implications for availability. Further, how the implications for availability can be understood via modelling and simulation is addressed. The paper adds further specificity to literature by indicating the FP constituents for which cloud services are applicable and adequate.

  • 43.
    Lindström, John
    et al.
    Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
    Löfstrand, Magnus
    Uppsala University, UDBL, 751 05, Uppsala, Sweden.
    Reed, Sean
    NTEC, University of Nottingham, Nottingham, UK.
    Alzghoul, Ahmad
    Uppsala University, UDBL, 751 05, Uppsala, Sweden.
    Use of Cloud Services in Functional Products: Availability Implications2014In: Procedia CIRP, ISSN 2212-8271, E-ISSN 2212-8271, Vol. 16, p. 368-372Article in journal (Refereed)
    Abstract [en]

    The paper addresses the potential use of cloud services in Functional Products (FP) and its possible implications for availability. Further, how the implications for availability can be understood via modelling and simulation is addressed. The paper adds further specificity to literature by indicating the FP constituents for which cloud services are applicable and adequate.

  • 44.
    Lindström, John
    et al.
    Product & Production Development/Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Plankina, Daria
    Product & Production Development/Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Lideskog, Håkan
    Product & Production Development/Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    Product & Production Development/Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Karlsson, Lennart
    Product & Production Development/Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Functional product development: criteria for selection of design methods on strategic and operational levels2013In: The Philosopher's Stone for Sustainability: Proceedings of the 4th CIRP International Conference on Industrial Product-Service Systems, Tokyo, Japan, November 8th–9th, 2012 / [ed] Yoshiki Shimomura, Koji Kimita, Springer, 2013, p. 25-30Conference paper (Refereed)
    Abstract [en]

    The paper proposes criteria that can be used for selection of design methods on strategic and operational levels in Functional Product development. The paper draws on research from general product development and specific research within Product-Service Systems and Functional Products, combined with empirical data from interviews with four organizations concerned with Functional Product development. The use of many design methods requires resources such as knowledge and skills, which may not always be feasible to keep in-house. However, the key design methods needed in-house should be identified, added to the set of approved design methods and granted adequate resource allocation.

  • 45.
    Lindström, John
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Plankina, Daria
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Lideskog, Håkan
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Karlsson, Lennart
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Functional product development: criteria for selection of design methods on strategic and operational levels2012In: The Philosopher's Stone for Sustainability: Proceedings of the 4th CIRP International Conference on Industrial Product-Service Systems, Tokyo, Japan, November 8th-9th, 2012 / [ed] Yoshiki Shimomura; Koji Kimita, Berlin Heidelberg: Springer Science+Business Media B.V., 2012, p. 25-30Conference paper (Refereed)
  • 46.
    Lindström, John
    et al.
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Sas, Daria
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Lideskog, Håkan
    Division of Computer Aided Design, Luleå University of Technology, Luleå, Sweden.
    Löfstrand, Magnus
    UDBL - Uppsala Database Laboratory, Uppsala University, Uppsala, Sweden.
    Karlsson, Lennart
    UDBL - Uppsala Database Laboratory, Uppsala University, Uppsala, Sweden.
    Defining Functional Products through their constituents2015In: International Journal of Product Development, ISSN 1477-9056, E-ISSN 1741-8178, Vol. 20, no 1, p. 1-24Article in journal (Refereed)
    Abstract [en]

    Based on empirical studies combined with a literature review, the paper proposes a comprehensive framework defining Functional Products (FP) through their constituents. The framework adds additional specificity to the literature by identifying and discussing existing and emerging constituents of FP, shedding further light on what is needed to create a long and trustful win-win situation between providers and customers in an FP context.

  • 47.
    Lindström, John
    et al.
    Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
    Sas, Daria
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Lideskog, Håkan
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    Löfstrand, Magnus
    UDBL – Uppsala Database Laboratory, Uppsala University, SE-751 05 Uppsala, Sweden.
    Karlsson, Lennart
    UDBL – Uppsala Database Laboratory, Uppsala University, SE-751 05 Uppsala, Sweden.
    Defining Functional Products through their constituents2015In: International Journal of Product Development, ISSN 1477-9056, E-ISSN 1741-8178, Vol. 20, no 1, p. 1-24, article id 1Article in journal (Refereed)
    Abstract [en]

    Based on empirical studies combined with a literature review, the paper proposes a comprehensive framework defining Functional Products (FP) through their constituents. The framework adds additional specificity to the literature by identifying and discussing existing and emerging constituents of FP, shedding further light on what is needed to create a long and trustful win-win situation between providers and customers in an FP context

  • 48.
    Löfstrand, Magnus
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
    A modelling and simulation approach for linking design activities to business decisions2007Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The business environment of the manufacturing industry is changing from a hardware-based product focus to a process and function focus. A current industrial interest is the development and sale of functions. This function could be realised as a product based on hardware, software and services, and may be sold as a function rather than as hardware. This function view is referred to as Functional Products (FP). The new focus for the customer is on value rather than hardware. This presents new challenges for how engineering hardware design may best be carried out. Sale of functional products requires a changed business model in which the price of the functional product is related to the functionality of the product itself; hence the name functional product. The supplier can in such a scenario no longer sell maintenance and spare parts. Instead, these activities become a cost, thus motivating the supplier to increase process efficiency, decrease internal production cost by using less energy per produced unit and increase knowledge about use-cases. The researcher's challenge is how to create new knowledge regarding functional product development for academic as well as for industrial benefit. The research question was formulated as: How may methods or tools for design process modelling and simulation be developed to support functional product development? Four case studies were carried out in Swedish industry. Case study 1 was carried out in cooperation with Hägglunds Drives AB. Case study 2 was carried out in cooperation with companies Hägglunds Drives AB, Volvo Aero and Volvo Car Corporation. Case study 3 was carried out in cooperation Volvo Aero and Case study 4 was carried out in cooperation with nine industrial companies during the formation of the Faste Laboratory, Centre for Functional Product Innovation. Results include the need for integrating product development process and company strategy for functional product development and the identification of the need for new methods and tools to enable better understanding of technology and business processes. The research shows the possibility of evaluating cost and time of development before doing the actual product development work by modelling and simulating the design process. Thus, the knowledge that previously was implicit in the work process is made explicit and possible to manipulate for a desired outcome. Linking the future business cases to work processes by modelling and simulation enables knowledge re-use and work-process predictions concerning cost and time. Hence, modelling and simulation of work processes results in better knowledge of company development capacity earlier than before, thus allowing shorter reaction time to changes in the business domain.

    Download full text (pdf)
    FULLTEXT01
  • 49.
    Löfstrand, Magnus
    Luleå University of Technology.
    A modelling and simulation approach for linking design activities to business decisions2007Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The business environment of the manufacturing industry is changing from a hardware-based product focus to a process and function focus. A current industrial interest is the development and sale of functions. This function could be realised as a product based on hardware, software and services, and may be sold as a function rather than as hardware. This function view is referred to as Functional Products (FP). The new focus for the customer is on value rather than hardware. This presents new challenges for how engineering hardware design may best be carried out. Sale of functional products requires a changed business model in which the price of the functional product is related to the functionality of the product itself; hence the name functional product. The supplier can in such a scenario no longer sell maintenance and spare parts. Instead, these activities become a cost, thus motivating the supplier to increase process efficiency, decrease internal production cost by using less energy per produced unit andincrease knowledge about use-cases. The researcher's challenge is how to create new knowledge regarding functional product development for academic as well as for industrial benefit. The research question was formulated as: How may methods or tools for design process modelling and simulation be developed to support functional product development? Four case studies were carried out in Swedish industry. Case study 1 was carried out in cooperation with Hägglunds Drives AB. Case study 2 was carried out in cooperation with companies Hägglunds Drives AB, Volvo Aero and Volvo Car Corporation. Case study 3 was carried out in cooperation Volvo Aero and Case study 4 was carried out in cooperation with nine industrial companies during the formation of the Faste Laboratory, Centre for Functional Product Innovation. Results include the need for integrating product development process and company strategy for functional product development and the identification of the need for new methods and tools to enable better understanding of technology and business processes. The research shows the possibility of evaluating cost and time of development before doing the actual product development work by modelling and simulating the design process. Thus, the knowledge that previously was implicit in the work process is made explicit and possible to manipulate for a desired outcome. Linking the future business cases to work processes by modelling and simulation enables knowledge re-use and work-process predictions concerning cost and time. Hence, modelling and simulation of work processes results in better knowledge of company development capacity earlier than before, thus allowing shorter reaction time to changes in the business domain.

    Download full text (pdf)
    A modelling and simulation approach for linking design activities to business decisions
  • 50.
    Löfstrand, Magnus
    Luleå University of Technology, Luleå, Sweden.
    Functional product development challenges collaborative work practices2009In: Virtual Team Leadership and Collaborative Engineering Advancements: Contemporary Issues and Implications / [ed] Ned Kock, IGI Global, 2009, Vol. 203-216, p. 203-216Chapter in book (Refereed)
    Abstract [en]

    Developing service-laden products in a virtual extended enterprise implies a wider distribution of resources and product development (PD) team members than what is the case today. In this setting, the challenge is getting a cross-disciplinary distributed team to collaborate effectively over distance using not only the tools available today, but also new tools and approaches. One such activity-based approach, based on an actual Volvo Aero service-provision process, is presented in this article. Supplying a physical product as part of a service contract within an extended enterprise demands increased speed and quality of the predictions the supplier wants to make in order to keep track of the product functionality, its cost effectiveness and lifecycle cost. One approach that has been proven in engineering is modeling and simulation, here implemented as activity-based simulation of an actual industrial work process that provides a maintenance service. The activity-based simulation approach is realized in the industry standard simulation environment MATLAB. It is created as a demonstrator of one of several future tools that may help a virtual extended enterprise to face the challenge of supplying function or services to the customer more effectively. Conclusions regarding Collaborative Working Environments include new requirements on quality of tools for supporting functional product development regarding knowledge availability, usability, security and interoperability. Conclusions also support the suggested approach concerning development of distributed, modular activity-based process simulation models as a suitable approach for supporting functional product development

123 1 - 50 of 101
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf