はり要素を用いたトポロジー最適化 : 第 1 報静的な剛性の最大化の場合

概要

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Computer Aided Engineering (CAE) including the topology optimization technique has been successfully used in many mechanical industries such as automotive industries. However, most mechanical designers, in fact, cannot utilize CAE applications by themselves because of the sophisticated operations and a huge amount of time for the analysis. Recently, the concept of a new CAE, First Order Analysis (FOA), has been proposed in order to overcome these problems. In this paper, we present the topology optimization method using beam elements corresponding to the concept of FOA. First, the mutual stiffness is defined using a mutual energy concept. Next, a multi objective optimization problem to deal with the multiple loading problem is formulated, and the optimization procedure is developed based on the ground structure approach and sequential convex programming. Finally, some examples are provided to confirm the optimization method proposed here.
一般社団法人日本機械学会の論文
2001-10-25