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Conceptual design for robustness
2009 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The title of this thesis is a combination of the term Conceptual Design which implies construction of ideas into concepts, and Design for Robustness which focuses on improving the reliability of a product or a process. The aim for this project was to implement a Robust Design Methodology (RDM) in the concept development process that takes into account the different perspectives at Volvo Aero Corporation which is a company that manufacturers of aircraft components, rockets and gas turbine engines with high technology content. Volvo Aero has a quality management system that is called the Operational Management System (OMS). A great part of this thesis work has been an external and internal literature study. To get information about the concept development process personal interviews were made as well as observations and a questionnaire has been given out to employees at Volvo Aero that have been part of a concept development process. The questionnaire gathered information allowing statistical analysis. It was found that the prescribed way of working did not comply with actual best practice described in OMS, the estimation of risks was not spread throughout the process, the vision of the concept goal was poor, there was no overall methods that were used - except brainstorming, projects used different concept evaluation matrixes, lack of time was a big concern and projects tended to do the job first - document it later. A new process design has been developed as a proposal for implementation in OMS which is clearer, simpler, and easier to over view, includes RDM and related to Volvo Aero’s product development philosophy. A new tool has been developed, the Concept Start Sheet. The tool clarifies the task in the early stages of the concept development process and is based on Volvo Aeros product development philosophy. The basic aims for the start sheet are: • Balance the project aim • Visualize the task • Implement the Volvo Aero Product Development Philosophy • Clarify the directives from the steering committee • Increase the communication in inside the project team • Increase the communication outside the project team (to steering committee and marketing department). “Robust Design Methodology means systematic effort to achieve insensitivity to noise factors. These efforts are applied from concept generation to the production of a product” (Gremyr 2005). Although the claim made in this report is that efforts can be applied before the concept generation, during the clarification of the task. The expression robust design is a craze that might not last for long, but the work with reducing variations will always be profitable.

Place, publisher, year, edition, pages
Keyword [en]
Technology, Robust design, Conceptual design, Engineering design, Design, process
Keyword [sv]
URN: urn:nbn:se:ltu:diva-52364ISRN: LTU-EX--09/027--SELocal ID: 97d776f6-baee-4eaa-b69c-16e3d597689bOAI: diva2:1025734
Subject / course
Student thesis, at least 30 credits
Educational program
Ergonomic Design & Production Engineering, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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