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  HomeContents of Chinese Journal of Mechanical Engineering (English Edition),2008 No.2ACCURACY ANALYSIS FOR PLANAR LINKAGE WITH MULTIPLE CLEAR-ANCES AT TURNING PAIRS

ZHANG Guojun

CHENG Qiang

SHAO Xinyu

LI Peigen
State Key Laboratory of Digital Manufacturing Equipment and Technology,
Huazhong University of Science and Technology,
Wuhan 430074, China

 

 

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

 

Abstract: 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 numerical 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.

Key words: Linkage mechanism Clearance error Accuracy

 


* This project is supported by National Basic Research Program of China(973 Program, No. 2004CB719405), National Hi-tech Research and Development Program of China (863 Program, No. 2006AA04Z107) and National Natural Science Foundation of China (No. 50575084, No. 50675082). Received November 22, 2006; received in revised form December 20, 2007; accepted January 9, 2008

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Biographical notes

ZHANG Guojun is a professor and supervisor for PhD candidate in State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, China. His research interests include reliability technology, modern design methods, and informationization of manufacturing industry, etc.
Tel: + 86-27-87557765; E-mail: zgj@mail.hust.edu.cn

CHENG Qiang is currently a PhD candidate in State Key Laboratory of Digital Manufacturing Equipment and Technology , Huazhong University of Science and Technology, China. He investigates into mechanism theory, axiomatic design and product adaptable design, etc.
Tel: + 86-27-87556155; E-mail: cqaaok@163.com

SHAO Xinyu is a professor and supervisor for PhD candidate in State Key Laboratory of Digital Manufacturing Equipment and Technology , Huazhong University of Science and Technology, China. He investigates into product collaborative design, integrated manufacturing, knowledge engineering, etc.
Tel: + 86-27-87557764; E-mail: shaoxy@mail.hust.edu.cn

LI Peigen an academician of China Engineering Academy and a professor and supervisor for PhD candidate in State Key laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, China. He investigates into integrated manufacturing, concurrent engineering, knowledge engineering, automatic error compensation technology at machining, etc.
Tel: + 86-27-87541798; E-mail: pgli@mail.hust.edu.cn




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