設計者の創造性と最適設計法に基づいたコンプライアントメカニズムの創成設計法

概要

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This paper proposes an innovative two-step approach to the design of practical and sophisticated compliant mechanisms. The approach consists of two optimization methods : topology and shape optimizations, and a scheme to implement designer input of ideas. In the first step, a designer explores the most fruitful design concepts for mechanisms that achieve the design requirements by combining several compliant mechanisms generated by the topology optimization with additional mechanisms based on his or her ideas. This step integrates the topology optimization with a support method that assists the designer's exploration of new ideas and design concepts. In the second step, the shape optimization procedure yields a detailed optimal shape based on the design concept. The combination of initial compliant mechanisms and additional mechanisms based on a designer's ideas enables the creation of devices having higher performance or increased capability than would be possible using a single compliant mechanism alone. Executing the shape optimization at the second step facilitates the determination of a detailed optimal shape, and also makes it possible to consider stress concentration and make accurate quantitative performance evaluations, which neither topology optimization nor a designer's creative activity alone can provide.
社団法人精密工学会の論文
2005-11-05