ACCURACY ANALYSIS FOR PLANAR LINKAGE WITH MULTIPLE CLEAR-ANCES AT TURNING PAIRS  

作　　者：ZHANG Guojun CHENG Qiang SHAO Xinyu LI Peigen 

机构地区：[1]State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074. China

出　　处：《Chinese Journal of Mechanical Engineering》2008年第2期36-41,共6页中国机械工程学报（英文版）

基　　金：National Basic Research Program of China(973 Program,No.2004CB719405);National Hi-tech Research and Development Program of China (863 Program,No.2006AA04Z107);National Natural Science Foundation of China (No.50575084,No.50675082)

摘　　要：Clearance at turning pair has a strong impact on the kinetic accuracy of linkage, but there is short of a generic model to analyze it so far. Clearance error, input error, and manufacturing tolerance of links are taken into consideration as the random variables synthetically. The kinematics and dynamics accuracy analysis models for planar linkages with multiple clearances at joints are built up as well. At last a typical planar linkage is selected for nurnerical illustration. These models stated in matrix resolve the relativity of output parameter errors of mechanism and therefore are of vital significance for the reliability analysis and synthesis of mechanism with clearances.Clearance at turning pair has a strong impact on the kinetic accuracy of linkage, but there is short of a generic model to analyze it so far. Clearance error, input error, and manufacturing tolerance of links are taken into consideration as the random variables synthetically. The kinematics and dynamics accuracy analysis models for planar linkages with multiple clearances at joints are built up as well. At last a typical planar linkage is selected for nurnerical illustration. These models stated in matrix resolve the relativity of output parameter errors of mechanism and therefore are of vital significance for the reliability analysis and synthesis of mechanism with clearances.

关 键 词：Linkage mechanism Clearance error ACCURACY 

分 类 号：TH131[机械工程—机械制造及自动化]