動的機能をもつ機械構造物のトポロジー最適化(J18-2 解析・設計の高度化・最適化(2),J18 解析・設計の高度化・最適化)

概要

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This paper proposes a structural topology optimization method for obtaining mechanical structures incorporating desired dynamic characteristics. First, a new type of homogenization design method is introduced, in which the continuous material distributions are assumed using a continuous interpolation function at each node, in order to overcome numerical instabilities. Next, three design requirements to implement specific dynamic characteristics in the mechanical structures are clarified, namely eigen-frequency matching, eigen-mode, control, and stiffness, and the corresponding objective functions are formulated. An optimization algorithm is developed using Sequential Linear Programming (SLP). Finally, several examples are provided in order to confirm the usefulness of the generated optimal designs for vibrating mechanical structures.
一般社団法人日本機械学会の論文
2004-09-04