階層型領域分割法と力法を用いた大規模並列形状最適化(<論文特集>計算固体力学におけるイノベーション)

概要

論文の詳細を見る
This paper describes shape optimization of millions degrees of freedom (DOF) finite element model in a parallel computing environment. Here the Traction method is combined with the parallel finite element analysis system named ADVENTURE, which is based on the hierarchical domain decomposition method (HDDM). The ADVENTURE system is a module-based parallel finite element system for 10^7-10^8 DOF problems. The Traction method is one of shape optimization algorithms, which enables to keep smoothness of the final shape as same as the initial shape without causing undulating phenomenon. The method finds the optimized shape by applying external force, in proportion to the minus value of the shape gradient function, as the Neumann boundary condition. Practical performances of the present approach are demonstrated through some numerical examples with one million DOF mesh.
日本シミュレーション学会の論文
2001-12-15