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Balansering av produktegenskaper i komplex konceptdesign: En fallstudie vid GKN Aerospace med fokus på kvalitetsverktyg
2013 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Products today are getting more and more complex in design, which put higher demands on manufacturing as well as being able to make a solid business case. These requirements are conflicting by nature and therefore there often is no such thing as a final “perfect” design. This thesis aims to examine how quality tools can be used to improve the balancing act of product features in the concept design phase in order to find the best possible solution to the efficiency and complexity dilemma. The author divided the research into three different phases. First, the author performed a literature overview to identify methodologies and tools that are commonly used within new product development in order to build a literature framework. Next, the author conducted a case study at GKN examining how the organization works with balancing product features today. Finally, the author compared GKN’s use of quality tools when balancing features today with the literature framework in order to identify gaps and suggest possible improvements that can be made.The case study included interviews, analyzing work material and observation. The author held nine semi-structured in-depth interviews with a variety of Engineers-in-charge, Manufacturing-leads and specialists within the three product areas: Commercial Aerospace, Space Propulsion and Military. After the case study the author led a workshop with a small group consisting of Engineers-in-charge, Manufacturing-leads and specialists, to validate the results and to further identify ideas on how to improve the balancing process.The study showed that GKN uses tools for balancing product features most frequently in the concept study phase; thus, concept evaluation became the author’s main focus throughout the remainder of the study. Three alternative tools used for evaluating concepts were identified during the study. The author found handling the uncertainty within the tools to be one of the largest challenges when evaluating the concepts. In order to handle these challenges, improve how GKN works with evaluating concepts and thereby improve how the company balances product features, this study resulted in the following main recommendations. GKN should……Continue to focus on platform development in order to base decisions regarding the concept evaluation on facts. …Implement a maturity analysis. This analysis would be an easy way to gain more information when choosing the concept and would also help the company to take calculated risks within a project. …Implement the tool used within Space Propulsion called Alternative 2 as the “standard way of working”. By using this tool, the project team will choose the concept that best suits what the customer wants in a structured manner, thereby creating a qualitative product. …Discuss and document weighting keys for each criterion when conducting an evaluation in order to improve the valuation of the concepts and ease potential follow-up. …Do further research on how fuzzy logic can be implemented within the evaluation tools to better handle the current crisp weighting scale 1, 3, 9.

Place, publisher, year, edition, pages
2013. , 78 p.
Keyword [en]
Social Behaviour Law
Keyword [sv]
Samhälls-, beteendevetenskap, juridik, Concept design, Quality tools, Aerospace industry, Complex design, Balancing product features
URN: urn:nbn:se:ltu:diva-44192Local ID: 1fc8e0af-4fcd-4cf2-bf80-4062171dcd78OAI: diva2:1017467
External cooperation
Subject / course
Student thesis, at least 30 credits
Educational program
Industrial and Management Engineering, master's level
Validerat; 20130628 (global_studentproject_submitter)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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