REVERSE DESIGN APPROACH FOR MECHANISM TRAJECTORY BASED ON CODE-CHAINS MATCHING  

作　　者：ZHANG Shuyou YI Guodong XU Xiaofeng 

机构地区：[1]State Key Laboratory of CAD＆CG, Zhejiang University, Hangzhou 310027, China

出　　处：《Chinese Journal of Mechanical Engineering》2007年第3期86-90,共5页中国机械工程学报（英文版）

基　　金：This project is supported by National Hi-tech Research and Development Program of China (863 Program, No. 2006AA04Z114);Research Fund for the Doctoral Program of Higher Education, China (No. 20040335060);Provincial Scientific Personnel Educational Foundation of Zhejiang, China (No. R603240).

摘　　要：Aiming at the problem of reverse-design of mechanism, a method based on the matching of trajectory code-chains is presented. The motion trajectory of mechanism is described with code-chain, which is normalized to simplify the operation of geometric transformation. The geometric transforma-tion formulas of scale, mirror and rotation for trajectory code-chain are defined, and the reverse de-sign for mechanism trajectory is realized through the analysis and solution of similarity matching between the desired trajectory and the predefined trajectory. The algorithm program and prototype system of reverse design for mechanism trajectory are developed. Application samples show that the method can break the restriction of trajectory patterns in matching, meet the demand of partial match-ing, and overcome the influence of geometric transformation of trajectory on the reverse design for mechanism.Aiming at the problem of reverse-design of mechanism, a method based on the matching of trajectory code-chains is presented. The motion trajectory of mechanism is described with code-chain, which is normalized to simplify the operation of geometric transformation. The geometric transforma-tion formulas of scale, mirror and rotation for trajectory code-chain are defined, and the reverse de-sign for mechanism trajectory is realized through the analysis and solution of similarity matching between the desired trajectory and the predefined trajectory. The algorithm program and prototype system of reverse design for mechanism trajectory are developed. Application samples show that the method can break the restriction of trajectory patterns in matching, meet the demand of partial match-ing, and overcome the influence of geometric transformation of trajectory on the reverse design for mechanism.

关 键 词：TRAJECTORY Code-chain Similarity matching Reverse-design 

分 类 号：TH11[机械工程—机械设计及理论]