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Collaborative multidisciplinary design optimization: A framework applied on aircraft conceptual system design
Linköping University, Department of Management and Engineering, Machine Design. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Management and Engineering, Machine Design. Linköping University, Faculty of Science & Engineering.
SAAB, Department Modeling and Simulat Vehicle Syst, Linkoping, Sweden.
Linköping University, Department of Management and Engineering, Machine Design. Linköping University, Faculty of Science & Engineering.
2015 (English)In: Concurrent Engineering - Research and Applications, ISSN 1063-293X, E-ISSN 1531-2003, Vol. 23, no 3, 236-249 p.Article in journal (Refereed) Published
Abstract [en]

In a product development process, it is crucial to understand and evaluate multiple and synergic aspects of systems such as performance, cost, reliability, and safety. These aspects are mainly considered during later stages of the design process. However, in order to improve the foundations for decision-making, this article presents methods that are intended to increase the engineering knowledge in the early design phases. In complex products, different systems from a multitude of engineering disciplines have to work tightly together. Collaborative design is described as a process where a product is designed through the collective and joint efforts of domain experts. A collaborative multidisciplinary design optimization process is therefore proposed in the conceptual design phase in order to increase the likelihood of more accurate decisions being taken early on. The performance of the presented framework is demonstrated in an industrial application to design aircraft systems in the conceptual phase.

Place, publisher, year, edition, pages
Sage Publications, 2015. Vol. 23, no 3, 236-249 p.
Keyword [en]
conceptual design; collaborative design; aircraft system design; multidisciplinary design optimization
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:liu:diva-122539DOI: 10.1177/1063293X15587020ISI: 000362993200005OAI: oai:DiVA.org:liu-122539DiVA: diva2:867992
Note

Funding Agencies|VINNOVA (Swedens innovation agency) through the IMPOz project [2013-03758]

Available from: 2015-11-09 Created: 2015-11-06 Last updated: 2016-10-06
In thesis
1. Collaborative Multidisciplinary Design Optimization for Conceptual Design of Complex Products
Open this publication in new window or tab >>Collaborative Multidisciplinary Design Optimization for Conceptual Design of Complex Products
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

MULTIDESCIPLINARY design optimization (MDO) has developed in theory andpractice during the last three decades with the aim of optimizing complexproducts as well as cutting costs and product development time. Despite thisdevelopment, the implementation of such a method in industry is still a challenge andmany complex products suffer time and cost overruns.

Employing higher fidelity models (HFMs) in conceptual design, one of the early and most important phases in the design process, can play an important role in increasing the knowledge base regarding the concept under evaluation. However, design space in the presence of HFMs could significantly be expanded. MDO has proven to be an important tool for searching the design space and finding optimal solutions. This leads to a reduction in the number of design iterations later in the design process, with wiser and more robust decisions made early in the design process to rely on.

In complex products, different systems from a multitude of engineering disciplines have to work tightly together. This stresses the importance of evolving various domain experts in the design process to improve the design from diverse engineering perspectives. Involving more engineers in the design process early on raises the challenges of collaboration, known to be an important barrier to MDO implementation in industry. Another barrier is the unavailability and lack of MDO experts in industry; those who understand the MDO process and know the implementation tasks involved.

In an endeavor to address the mentioned implementation challenges, a novel collaborative multidisciplinary design optimization (CMDO) framework is defined in order to be applied in the conceptual design phase. CMDO provides a platform where many engineers team up to increase the likelihood of more accurate decisions being taken early on. The structured way to define the engineering responsibilities and tasks involved in MDO helps to facilitate the implementation process.

It will be further elaborated that educating active engineers with MDO knowledge is an expensive and time-consuming process for industries. Therefore, a guideline for CMDO implementation in conceptual design is proposed in this thesis that can be easily followed by design engineers with limited prior knowledge in MDO. The performance of the framework is evaluated in a number of case studies, including applications such as aircraft design and the design of a tidal water power plant, and by engineers in  industry and student groups in academia.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2016. 68 p.
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1779
National Category
Production Engineering, Human Work Science and Ergonomics Interaction Technologies Human Computer Interaction Design Other Mechanical Engineering
Identifiers
urn:nbn:se:liu:diva-131792 (URN)10.3384/diss.diva-131792 (DOI)9789176857120 (ISBN)
Public defence
2016-11-18, ACAS, A building, Campus Valla, Linköping, 13:15 (English)
Opponent
Supervisors
Available from: 2016-10-06 Created: 2016-10-06 Last updated: 2016-12-20Bibliographically approved

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