文献类型：期刊文献

英文题名：Hybrid Compliant Mechanism Design Using a Mixed Mesh of Flexure Hinge Elements and Beam Elements Through Topology Optimization

作者：Cao, Lin[1,2];Dolovich, Allan T.[2];Zhang, Wenjun (Chris)[1,2]

机构：[1]E China Univ Sci & Technol, Complex & Intelligent Syst Ctr, Shanghai 200038, Peoples R China;[2]Univ Saskatchewan, Dept Mech Engn, Saskatoon, SK S7N 5A9, Canada

年份：2015

卷号：137

期号：9

外文期刊名：JOURNAL OF MECHANICAL DESIGN

收录：;EI(收录号：20153401182657);WOS:【SCI-EXPANDED(收录号:WOS:000359191000006)】；

基金：The first author acknowledges the financial support from the China Scholarship Council. This research was also partially supported by NSERC Discovery Grant and NSFC (51175179 vertical bar) to the corresponding author.

语种：英文

外文关键词：Finite element method - Hinges - Machine design - Mechanisms - Mesh generation - Topology

摘要：This paper proposes a topology optimization framework to design compliant mechanisms with a mixed mesh of both beams and flexure hinges for the design domain. Further, a new type of finite element, i.e., super flexure hinge element, was developed to model flexure hinges. Then, an investigation into the effects of the location and size of a flexure hinge in a compliant lever explains why the point-flexure problem often occurs in the resulting design via topology optimization. Two design examples were presented to verify the proposed technique. The effects of link widths and hinge radii were also investigated. The results demonstrated that the proposed meshing scheme and topology optimization technique facilitate the rational decision on the locations and sizes of beams and flexure hinges in compliant mechanisms.