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  • 1.
    Carlqvist, Per
    et al.
    Micronic Laser Systems AB, Sweden .
    Brattström, Patrik
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    During, Carl
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Optimization of Active Vibration Control of a Laser Pattern Generator in Micro Lithography2010In: Proceedings of the 10th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2010, euspen , 2010, Vol. 1, p. 491-494Conference paper (Refereed)
    Abstract [en]

    The extreme precision requirements in semiconductor manufacturing drive the need for an active vibration isolation system in a laser pattern generator. Optimization has been performed and evaluated in a model using a high level programming tool [1]. The areas of optimization were 1) Decoupling strategies for decentralized control and 2) Improved feed forward control. Only a limited description of the model itself is given here. More about the model is presented in [2] and [3].

  • 2. Carlqvist, Per
    et al.
    Ivone, Davide
    Politechnico di Milano, Italy .
    During, Carl
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Wikander, Jan
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Benchmark of High Level Programming: Pilot Case Vibration Control2009In: Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009 / [ed] H. Van Brussel, E. Brinksmeier, H. Spaan, T. Burke, 2009, Vol. 1, p. 361-364Conference paper (Refereed)
    Abstract [en]

    The advancement of technology of laser pattern generators needs to meet demands of the rapid product development pace in the display and semiconductor markets. A hypothesis is that efficiency in the development process of complex systems can be improved by introducing a higher level programming approach. This will make a model and simulation based development (MBD) strategy more easy to adapt leading to 1) higher technical performance at shorter development time from idea to product introduction phase, 2) lower cost of goods, 3) shorter production-, installations- & upgrade time and 4) possibility of very efficient field support & service, etc. The success of an MBD approach is dependent on the simulation software capability to express the behavior of a real system. Consequently, as a first step towards an MBD approach, the investigation covers a pilot-study where results from simulations are compared to an existing controlled system.

  • 3.
    During, Carl
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Mechatronic systems techniques for real-time optical measurement systems2014In: Electromechanical Systems: Mechatronic Systems, Techniques and Applications Volume Four, CRC Press , 2014, p. 71-123Chapter in book (Other academic)
    Abstract [en]

    The development of optical devices, such as the semiconductor laser, the optical fiber, and the CCD Cameras have recently produced a variety of different equipment for industries, offices and homes, which are based on optic, mechanic, electronic and computer sciences. These systems are sometimes referred to as opto-mechatronic systems [1,2], and can for example be categorized in real-time optical information systems and real-time optical measurement systems. Information systems, such as hand held laser scanners used for storing information in a computer. Measurement systems, where the information of the measurements produces a system response.2A system can for example be symbolized by an autonomous mobile robot, using a fiber optic gyroscope together with pulsed laser diodes range finders based on time of flight measurements, for navigation control [3]. There are also combinations of these two categories such as optical disc storage systems [4,5]. In this case the measurement of the reflected light gives the stored data of the disc as well as information to keep the laser beam on the track of the disc. Focusing on real-time optical measurement systems, this chapter will discuss aspects of mechatronic systems techniques.

  • 4.
    During, Carl
    et al.
    KTH, Superseded Departments, Machine Design.
    Andersson, Sören
    KTH, Superseded Departments, Machine Design.
    Wikander, Jan
    KTH, Superseded Departments, Machine Design.
    Non-contact, absolute position measurement,using a compact disc record player optical pick-up1992In: Sensors and Actuators A-Physical, ISSN 0924-4247, E-ISSN 1873-3069, Vol. 32, p. 575-581Article in journal (Refereed)
  • 5.
    During, Carl
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Wikander, Jan
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Model based conceptual mechatronic design - reflections concerning research versus industrial needs for high performance systems2014In: Proceedings of a meeting held 16-18 June 2014, Karlstad, Sweden, 2014Conference paper (Other academic)
  • 6.
    Qamar, Ahsan
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    During, Carl
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Wikander, Jan
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Designing Mechatronic Systems, a Model-based Perspective, an Attempt to Achieve SysML-Matlab/Simulink Model Integration2009In: 2009 IEEE/ASME INTERNATIONAL CONFERENCE ON ADVANCED INTELLIGENT MECHATRONICS, NEW YORK: IEEE , 2009, p. 1299-1304Conference paper (Refereed)
    Abstract [en]

    Higher demands on efficiency, cost and functionality have contributed a great deal towards the advent of Mechatronic systems where mechanics, electronics and computer software integrate together to provide the required functionality. This integration has its effects in the design process as well, and a good design requires careful integration of methods and tools to satisfy the overlapping objectives. The set of requirements a designer needs to satisfy for a good design are in all three domains, hence various design and modelling tools are used by engineers to satisfy these multi-domain requirements. With the advent of systems modelling languages for specifying the complete system in one system model, there is an increased urge to link the system modelling tools to the domain specific tools such as Matlab/Simulink. In this paper we present an attempt to achieve an integrated design environment by building mapping between SysML and Matlab/Simulink models. The complexities that can be solved using SysML and the ones which necessitate a communication between SysML and other tools are discussed. Models of an industrial pattern generator are presented to explain the practical influence of this integration approach. The resulting integrated model is more comprehensive for the designer when investigating various design alternatives. This is important for companies considering they have to consistently embed innovation and sustainability in their products.

  • 7.
    Qamar, Ahsan
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Törngren, Martin
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Wikander, Jan
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    During, Carl
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Integrating Multi-Domain Models for the Design and Development of Mechatronic Systems2010In: 7th European Systems Engineering Conference EuSEC 2010, Stockholm, Sweden, Stockholm, Sweden: INCOSE , 2010Conference paper (Refereed)
    Abstract [en]

    Design of mechatronic systems is driven by engineering efforts in multiple-domains, resulting in models developed in various formalisms. In spite of interconnections between these domains, approaches linking them theoretically are lacking. This lack of integration leads to major challenges in solving dependencies across different domains, slowing down the design process. In this paper, a model-level integration-framework is described, aiming to identify and solve dependencies across different domains during the design process of a mechatronic system. A two-degree of freedom robot example is presented, to exemplify the iterative process of design optimisation in a computer aided design tool (Solid Edge), connected with corresponding dynamic analysis and controller design in Matlab/Simulink. A system model built in systems modelling language (SysML) is extended to capture the cross- domain dependencies as parameters in a black-box model. These black-box models can be systematically linked with other domains (CAD and dynamic analysis) through the model integration algorithm (based on the robot example). As the modellers perform the design iterations in Matlab/Simulink and Solid Edge, the updates on cross-domain dependencies will be available through SysML model, containing the complete system view. Possible issues with un-identified dependencies (due to change in requirements), and their possible solutions are also discussed. It is emphasized that the robot example could be generalized towards mechatronic systems, along with the requirement specifications for the model-integration algorithm. It is demonstrated that efficient design solutions and reduction in design time are possible with concurrent multi-domain models integration.

  • 8.
    Qamar, Ahsan
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Wikander, Jan
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    During, Carl
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    A Mechatronic Design Infrastructure Integrating Heterogeneous Models2011In: 2011 IEEE International Conference on Mechatronics (ICM 2011), Istanbul, Turkey: IEEE , 2011, p. 212-217Conference paper (Refereed)
    Abstract [en]

    Mechatronic system design is contemplated extensivelythrough model-based approaches. To reflect the multidomainintegration inside a mechatronic system during the designprocess, integration approaches targeting heterogeneous modelsare essential. An infrastructure supporting the design of multidomainsystems is presented. The dependencies between thedomain-specific models are managed by utilizing SysML as acommon system modeling language between those models. Amodel integration framework supports model transformationsbetween the system-model and the domain-specific models byutilizing Eclipse Modeling Framework. Structural and parametertype dependencies between different domain-models are handledto provide consistency between different views. This provides anability to traverse between different views of the system, as wellas maintaining consistency between those views. A case study on arobot system is presented to explain the integration of mechanicaldesign model in Solid Edge, and dynamic analysis model inSimulink/SimMechanics through a SysML system model, all underthe proposed design infrastructure. The approach is scalabletowards other modeling formalisms by building new relationsthrough the SysML model. This will support: co-evolution ofdomain-specific models, a better design of multi-domain systems,reduction in modeling in-consistencies, and a reduction in designtime.

  • 9.
    Qamar, Ahsan
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Wikander, Jan
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    During, Carl
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Designing Mechatronic Systems: A Model Integration Approach2011In: International Conference on Engineering Desgin ICED2011, Copenhagen, Denmark, 2011, p. 145-156Conference paper (Refereed)
    Abstract [en]

    Development of mechatronic products requires different types of design models in order to support both domain-independent specifications and domain-specific principles. This research aims to find out how system-level modeling can support mechatronic design, and how the integration of system-level modeling and domain-specific modeling can be supported during different design phases. A design example of a hospital bed’s propulsion system is presented to show firstly the relationship between conceptual design and system-level modeling, and secondly the need for integration of system level and domain specific design models. An integrated modeling and design infrastructure is proposed to support abstraction between mechatronic design models, hence supporting co-evolution of design models. The paper concludes that a mechatronic design problem can be better supported through such an integrated design approach. However, usability of this approach needs to be further supported by more case studies in the future.

  • 10.
    Qamar, Ahsan
    et al.
    Georgia Institute of Technology, United States .
    Wikander, Jan
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    During, Carl
    Micronic-MyData AB.
    Managing dependencies in mechatronic design: a case study on dependency management between mechanical design and system design2015In: Engineering with Computers, ISSN 0177-0667, E-ISSN 1435-5663, Vol. 31, no 3, p. 631-646Article in journal (Refereed)
    Abstract [en]

    In this paper, we have investigated the role of dependencies in the design process of mechatronic products. Since explicit modeling of dependencies is largely considered unnecessary today, current languages do not support dependency modeling due to lack of sufficiently expressive language constructs. However, this paper argues that modeling dependencies is important in managing the overall design process. The paper highlights dependencies between two important viewpoints: system design and mechanical design. We have looked closely at how mechanical design (supported by CAD tools) establishes a backbone for the overall design concept. Mechanical design cannot be isolated from other design activities, and the mismanagement of dependencies there leads to problems in other domains too. To illustrate the process, the paper presents an example of modeling dependencies between system hierarchy in OMG SysML™ and the CAD assembly in Solid Edge for a mechatronic design example. The paper presents two different approaches to capturing dependencies—using a general purpose modeling language such as SysML and using a domain specific modeling language (DSML). We argue for using a DSML instead of a general purpose language and provide a DSML called the dependency modeling language (DML). An example DML model for a two degree of freedom robot use case is discussed. The paper also illustrates the complete process of capturing dependencies in a general purpose modeling language like SysML, which served as a good exercise on how to fetch data from a CAD tool and how to represent dependencies inside a significantly different modeling language. Lessons learned from doing this were applied to the construction of DML. Our aim for the future is to reduce the human effort required to build dependency models. Machine learning techniques and automated model transformations are valuable techniques to support this cause.

  • 11.
    Torry-Smith, Jonas Morkeberg
    et al.
    Department of Management Engineering, Technical University of Denmark, Copenhagen, Denmark.
    Qamar, Ahsan
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Achiche, Sofiane
    Department of Management Engineering, Technical University of Denmark, Copenhagen, Denmark.
    Wikander, Jan
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Mortensen, Niels Henrik
    Department of Management Engineering, Technical University of Denmark, Copenhagen, Denmark.
    During, Carl
    KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Mechatronics.
    Mechatronic Design: Still A Considerable Challenge2011In: Proceedings of the ASME Design Engineering Technical Conference, ASME , 2011, p. 33-44Conference paper (Refereed)
    Abstract [en]

    Development of mechatronic products is traditionally carried out by several design experts from different design domains. Performing development of mechatronic products is thus greatly challenging. In order to tackle this, the critical challenges in mechatronics have to be well understood and well supported through applicable methods and tools. This paper aims at identifying the major challenges, by conducting a survey of the most relevant research work in mechatronic design. Solutions proposed in literature are assessed and illustrated through a case study in order to investigate, if the challenges can be handled appropriately by the methods, tools, and mindsets suggested by the mechatronic community. Using a real world mechatronics case, the paper identifies the areas where further research is required, by showing a clear connection between the actual problems faced during the design task, and the nature of the solutions currently available. From the results obtained from this research, one can conclude that although various attempts have been developed to support conceptual design of mechatronics, these attempts are still not sufficient to help in assessing the consequences of selecting between alternative conceptual solutions across multiple domains. We believe that a common language is essential in developing mechatronics, and should be evaluated based on: its capability to represent the desired views effectively, its potential to be understood by engineers from the various domains, and its effect on the efficiency of the development process.

  • 12.
    Wikander, Jan
    et al.
    KTH, Superseded Departments, Machine Design.
    During, Carl
    KTH, Superseded Departments, Machine Design.
    Andersson, Sören
    KTH, Superseded Departments, Machine Design.
    Förfarande och anordning för beröringsfri bestämning av en kropps translations- eller vridningsläge1991Patent (Other (popular science, discussion, etc.))
    Abstract [en]

    In a method for touch-free determination of the translatory or angular position of a body, a defined measuring path (M) on the body (K) in the direction of said translatory or angular motion of the body (1) is detected spot-wise by means of an optical sensor head (1), which emits laser light towards the measuring path and provides an output signal responsive to light reflected from said path (M), the sensor head (1) and the body (K) with the measuring path (M) being movable relative to each other. In order to provide for an exact position determination with high resolution in an inexpensive way the invention suggests that the surface profile or characteristics of the body (K) along the measuring path (M) is scanned by illumination from the sensor head (1), which consists of an optical pick-up for compact discs.

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