Topology optimization with meshless density variable approximations and BESO method

被引：16
|
作者：
Zhao, Fei [1 ]
机构：
[1] Xidian Univ, Key Lab Elect Equipment Struct Design, Minist Educ, Xian 710071, Peoples R China
来源：
COMPUTER-AIDED DESIGN | 2014年 / 56卷
基金：
中国国家自然科学基金;
关键词：
Topology optimization; Nodal density variables; BESO method; Shepard function; Numerical instabilities; LEVEL SET; STRUCTURAL SHAPE; DESIGN; INTERPOLATION;
D O I：
10.1016/j.cad.2014.06.003
中图分类号：
TP31 [计算机软件];
学科分类号：
081202 ; 0835 ;
摘要：
An improved meshless density variable approximation is incorporated into the BESO method for topology optimization of continuum structures in this paper. The essential boundary condition is enforced by using the compactly supported radial basis function (CSRBF). The Shepard function is used to create a physically meaningful dual-level density approximation. Numerical examples show that the proposed method is feasible and fidelity for the topology optimization of continuum structures. The common numerical instabilities of the BESO method do not exist in the final results. (C) 2014 Elsevier Ltd. All rights reserved.
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页码：1 / 10
页数：10
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