机械科学与技术2025，Vol.44Issue(5)：798-805,8.DOI:10.13433/j.cnki.1003-8728.20230232
考虑寄生运动的柔顺机构拓扑优化设计
Topology Optimization Design of Compliant Mechanisms Considering Parasitic Motion
摘要
Abstract
Compliant mechanisms are prone to generate unwanted parasitic motion in the input and output directions,which is detrimental to the drive and motion control of the mechanism.To solve this problem,a topology optimization method of compliant mechanisms considering parasitic motion is proposed in this paper.Based on the solid isotropic material with penalization(SIMP)method,the parasitic motion is introduced into the objective function,in which the rotational motion is represented by the translational displacement difference between two points.The performance relationship between output displacement and parasitic motion was considered as the objective function.Weight factor was used to convert the multi-objective into a single objective,the topology optimization model of the compliant mechanism was established.The Heaviside function was used for density filtration,and the optimization criterion(OC)method was used to solve the problem.Design of a compliant amplification mechanism with low parasitic motion at the input end was taken as an example,and the topology optimization results under three different conditions are given.Finite element analysis(FEA)of the optimized mechanism was performed using ANSYS Workbench,which verifies the validity of the proposed method.关键词
柔顺机构/寄生运动/拓扑优化/SIMP/多目标Key words
compliant mechanism/parasitic motion/topology optimization/SIMP/multi-objective分类
机械工程引用本文复制引用
汪启亮,魏健鸣,龙益平,郭彬..考虑寄生运动的柔顺机构拓扑优化设计[J].机械科学与技术,2025,44(5):798-805,8.基金项目
国家自然科学基金项目(51905239)、江西省自然科学基金项目(20181BAB216019)及江西省教育厅科学技术研究项目(GJJ160656) （51905239）
