機械構造の位相最適化に関する一数値実験

概要

論文の詳細を見る
The shape and topology optimization of a linear elastic structure is studied on the optimal process by use of finite element method. The authors propose two methods in the optimal process. One concems stabilization of the optimal process and the other reduction of the number of iteration in the process. In the former which makes the process stable, the material properties of the finite elements are modified in each step in the way how their strain energy is modified for each element energy to keep equal before and after each iteration. In the latter which reduces the number of the iteration, the finite elements are grouped into several classes in order of the magnitude of the stresses in the elements, then, the elements in the classes are treated instead of an individual element at the same time, using fuzzy c-means method. The methods may be justified its validity with various experiments for finite element models of two dimensional continuums.
日本シミュレーション学会の論文
1994-12-15