Topology optimization of 3D structures with design-dependent loads  

作　　者：Hui Zhang 

机构地区：[1]State Key Laboratory of Structural Analysis for Industrial Equipments,Department of Engineering Mechanics, [2]Dalian University of Technology, Dalian 116023, China

出　　处：《Acta Mechanica Sinica》2010年第5期767-775,共9页力学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (90816025, 10721062);National Basic Research Program of China (2006CB601205);Program for New Century Excellent Talents in University of the Ministry of Education of China (NCET-04-0272)

摘　　要：Topology optimization of continuum structures with design-dependent loads has long been a challenge. In this paper, the topology optimization of 3D structures subjected to design-dependent loads is investigated. A boundary search scheme is proposed for 3D problems, by means of which the load surface can be identified effectively and efficiently, and the difficulties arising in other approaches can be overcome. The load surfaces are made up of the boundaries of finite elements and the loads can be directly applied to corresponding element nodes, which leads to great convenience in the application of this method. Finally, the effectiveness and efficiency of the proposed method is validated by several numerical examples.Topology optimization of continuum structures with design-dependent loads has long been a challenge. In this paper, the topology optimization of 3D structures subjected to design-dependent loads is investigated. A boundary search scheme is proposed for 3D problems, by means of which the load surface can be identified effectively and efficiently, and the difficulties arising in other approaches can be overcome. The load surfaces are made up of the boundaries of finite elements and the loads can be directly applied to corresponding element nodes, which leads to great convenience in the application of this method. Finally, the effectiveness and efficiency of the proposed method is validated by several numerical examples.

关 键 词：Design-dependent loads Topology optimization 3D structures - Load surface Pressure loading 

分 类 号：O342[理学—固体力学] TM561.506[理学—力学]