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Implementation of collaborative multidisciplinary design optimization for conceptual design of a complex engineering product
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.
Linköping University, Department of Management and Engineering, Machine Design. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Management and Engineering, Applied Thermodynamics and Fluid Mechanics. Linköping University, Faculty of Science & Engineering.
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2016 (English)In: Concurrent Engineering - Research and Applications, ISSN 1063-293X, E-ISSN 1531-2003, Vol. 24, no 3, 251-265 p.Article in journal (Refereed) Published
Abstract [en]

This study investigates the performance of the collaborative multidisciplinary design optimization framework and how it facilitates the knowledge integration process. The framework is used to design and optimize an innovative concept of a tidal water power plant. The case study helps to highlight the challenges that may occur during implementation. The result is presented as a modified framework with less implementation difficulties. The improved framework shows significant reduction in design time and improvement in collaborative design optimization for a design team. The geometry of the product is optimized to minimize weight and maximize the power generated by the turbine with respect to some mechanical constraints.

Place, publisher, year, edition, pages
Sage Publications, 2016. Vol. 24, no 3, 251-265 p.
National Category
Production Engineering, Human Work Science and Ergonomics Human Computer Interaction Fluid Mechanics and Acoustics Interaction Technologies Aerospace Engineering Design
Identifiers
URN: urn:nbn:se:liu:diva-131790DOI: 10.1177/1063293X16661224ISI: 000382850200005OAI: oai:DiVA.org:liu-131790DiVA: diva2:1033383
Note

Funding agencies: VINNOVA (Swedens innovation agency) through IMPOz project [2013-03758]

Available from: 2016-10-06 Created: 2016-10-06 Last updated: 2017-11-30Bibliographically approved
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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