Topological design of compliant mechanisms with hybrid constraints

被引：0

作者：

Zhan J. ^{[1
]}

Wang Y. ^{[1
]}

Liu M. ^{[1
]}

Zhu B. ^{[2
]}

机构：

[1] School of Mechatronics and Vehicle Engineering, East China Jiaotong University, Nanchang

[2] Guangdong Provincial Key Laboratory of Precision Equipment and Manufacturing Technique, South China University of Technology, Guangzhou

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 04期

关键词：

Compliant mechanisms; Minimum length scale control; Multiple phase projection method; Stress constraints; Topology optimization;

D O I：

10.13465/j.cnki.jvs.2022.04.021

中图分类号：

学科分类号：

摘要：

To satisfy manufacturing constraints and static strength requirements, a method for hybrid constrained topology optimization of compliant mechanisms considering both minimum length scale control and stress constraints was proposed. The improved solid isotropic material with a penalization model was adopted to describe the material distribution. The two-phase projection method was applied to simultaneously achieve minimum length scale control on both solid and void phases. The P norm approach was used to calculate approximately the maximum value of the element stress. The maximization of the output displacement of the compliant mechanism was developed as the objective function. The minimum length scale control and the maximum stress were used as the constraints. The model for hybrid constrained topology optimization of compliant mechanisms was established. The method of moving asymptotes was used to solve the optimization problem. The results of several numerical examples show that the compliant mechanism obtained by hybrid constrained topology optimization can meet both manufacturing constraints and strength requirements, and the von Mises equivalent stresses are more uniformly distributed. © 2022, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：159 / 166and222

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