中国机械工程2025，Vol.36Issue(4)：873-881,9.DOI:10.3969/j.issn.1004-132X.2025.04.025
基于知情构造理论的单材料柔性机构拓扑优化
Topology Optimization of Single Material Flexible Mechanisms Based on Informed Tectonics Theory
摘要
Abstract
In the topology optimization proceses,the number of subdomains would increase,so that the material distribution would occur at the junctions between the outer diameter and the inner di-ameter,and the too little optimization spaces in the subdomain of topology design would affect the o-verall performance of the structures.Therefore,the topological optimization models of single material flexible mechanisms were proposed based on the ITT.Through the description of material properties and attribute parameter calculation,the models made the value of the design subdomain number on the basis of adapting to the material characteristics and distribution of materials,so as to ensure that the structures had enough optimization spaces.Aiming at the maximum geometric gain of the mecha-nisms,the topological optimization models of single material flexible mechanisms were established based on the element-free Galerkin(EFG).In the topology optimization processes,the grid-fess Galer-kin method was introduced to construct the EFG relative density field,and the EFG nodes in the de-sign domain were used to construct the deformation function.Under the conditions that the material properties were effectively described in advance,the nodes might be flexibly arranged,so as to avoid the phenomenon of numerical instability,which might affect the performance optimization effective-ness.The typical analysis examples demonstrate the effectiveness of the proposed method.关键词
知情构造理论/柔性机构/拓扑优化/材料属性描述Key words
informed tectonics theory(ITT)/flexible mechanism/topology optimization/materi-al property description分类
通用工业技术引用本文复制引用
苏珂,王颖,梁腾腾,魏义礼,张楠楠..基于知情构造理论的单材料柔性机构拓扑优化[J].中国机械工程,2025,36(4):873-881,9.基金项目
国家自然科学基金(51405252) （51405252）
中国博士后科学基金(2020M672101) （2020M672101）
山东省中小企业创新能力提高计划(2023TSGCO200) （2023TSGCO200）
齐鲁工业大学(山东省科学院)校(院)地产学研协同创新基金(2021CXY-04) （山东省科学院）
