Topology optimization of thermally actuated compliant mechanisms considering time-transient effect

Authors:
Ying Li;Kazuhiro Saitou;Noboru Kikuchi
Affiliations:
Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI;Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI;Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI
Venue:
Finite Elements in Analysis and Design
Year:
2004

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Abstract

Thermal transducers, which can be regarded as thermally actuated compliant mechanisms, have found a wide range of applications, due to easy accessibility of heat source, and due to their good controllability and reliability. During the past decade topology optimization techniques have been developed as efficient tools to design distributed compliant mechanisms and accepted by engineers. In this research, based on topology optimization, time-transient effect of heat transfer is proposed to produce the localized thermal actuation, using only simple forms of boundary heating. Non-uniform temperature distribution can be achieved by controlling the heating time before steady state is reached. Two numerical examples are presented. The resulting technique can be applied to design a novel type of integral attachment mechanisms, which benefits the design for disassembly.