中国机械工程Issue(18)：2415-2420,2421,7.DOI:10.3969/j.issn.1004-132X.2014.18.001
平面连杆机构运动精度可靠性及灵敏度分析
Analyses of Kinematic Accuracy Reliability and Sensitivity for a Planar Linkage Mechanism
摘要
Abstract
Planar linkage mechanisms are widely applied to many machines .But such a long trans-mission distance will cause a large error accumulation ,and the impact on the kinematic accuracy can not be ignored .A modeling method of kinematic accuracy reliability analyses and simulation process was proposed considering multi-factor coupling effects of manufacturing errors ,structure deformation , assembly tolerance and hinge wear .The dynamics analyses of the mechanism were carried out after the clearance joints were dealt with momentum exchange approach .Based on the results of dynamics ana-lyses ,the Hook’s law or finite element method was used to analyze the deformation of the components and Archard’s model was used to analyze the wear depth of each joints .Follow that ,the closed vector position equation of the mechanism was established after the clearance joint was replaced with mass-less link considering manufacturing errors ,structural deformations ,and a kinematical accuracy model-ing method was also proposed considering the multi-factor coupling effects .The feasibility of the pro-posed method was proved by the kinematic accuracy reliability and sensitivity analysis of an aircraft door retractable mechanism and finally gives some valuable advices for manufacture and maintenance process .关键词
连杆机构/多因素耦合/运动精度/可靠性及灵敏度Key words
linkage mechanism/multi-factor coupling/kinematic accuracy/reliability and sensitivity分类
机械制造引用本文复制引用
庞欢,喻天翔,宋笔锋..平面连杆机构运动精度可靠性及灵敏度分析[J].中国机械工程,2014,(18):2415-2420,2421,7.基金项目
国家自然科学基金资助项目（51105308）；十二五总装预研基金资助项目 （）
