文献类型：期刊文献

英文题名：Toward a Unified Design Approach for Both Compliant Mechanisms and Rigid-Body Mechanisms: Module Optimization

作者：Cao, Lin[1,2];Dolovich, Allan T.[2];Schwab, Arend L.[3];Herder, Just L.[4];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;[3]Delft Univ Technol, Dept BioMech Engn, NL-2628 CD Delft, Netherlands;[4]Delft Univ Technol, Dept Precis & Microsyst Engn, NL-2628 CD Delft, Netherlands

年份：2015

卷号：137

期号：12

外文期刊名：JOURNAL OF MECHANICAL DESIGN

收录：;EI(收录号：20154301447988);WOS:【SCI-EXPANDED(收录号:WOS:000364973000007)】；

基金：The authors acknowledge the partial financial support from the NSERC Discovery Grant and the Chinese CSC. We also thank Professor Jaap Meijaard from the University of Twente (The Netherlands) for providing the advanced version of SPACAR and for his instructions on the use of SPACAR.

语种：英文

外文关键词：Finite element method - Mechanisms - Rigid structures - Structural design

摘要：Rigid-body mechanisms (RBMs) and compliant mechanisms (CMs) are traditionally treated in significantly different ways. In this paper, we present a synthesis approach that is appropriate for both RBMs and CMs. In this approach, RBMs and CMs are generalized into modularized mechanisms that consist of five basic modules, including compliant links (CLs), rigid links (RLs), pin joints (PJs), compliant joints (CJs), and rigid joints (RJs). The link modules and joint modules are modeled through beam elements and hinge elements, respectively, in a geometrically nonlinear finite-element solver, and subsequently a beam-hinge ground structure model is proposed. Based on this new model, a link and joint determination approach-module optimization-is developed for the type and dimensional synthesis of both RBMs and CMs. In the module optimization approach, the states (both presence or absence and sizes) of joints and links are all design variables, and one may obtain an RBM, a partially CM, or a fully CM for a given mechanical task. Three design examples of path generators are used to demonstrate the effectiveness of the proposed approach to the type and dimensional synthesis of RBMs and CMs.