MULTI-CRITERIA RELIABILITY-BASED DESIGN OPTIMIZATION FOR COMPLIANT MECHANISMS

DS 77: Proceedings of the DESIGN 2014 13th International Design Conference

Year: 2014
Editor: Marjanovic Dorian, Storga Mario, Pavkovic Neven, Bojcetic Nenad
Author: Kobayashi, M.; Higashi, M.
Series: DESIGN
Section: DESIGN SUPPORT TOOLS
Page(s): 1105-1112

Abstract

Safety factor is widely introduced to improve reliability of mechanical products / structures. However, since compliant mechanisms are quite different from traditional mechanisms, it is difficult to configure safety factor empirically. In order to design reliable compliant mechanisms, we extend optimal safety factor (OSF) and develop a multi-criteria reliability-based design optimization based on the extended OSF for compliant mechanisms. In the case study, the proposed method is applied to a design of a thermal actuated compliant valve used for a micro water cooling system.

Keywords: robust design, reliability-based design optimization, optimal safety factor, compliant mechanism

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