Structural Parameter Identification for Articulated Arm Coordinate Measuring Machines
Errors of structural parameters are the most important factors causing uncertainty of articulated arm coordinate measuring machines (AACMMs). Therefore these parameters must be identified to insure the accuracy of AACMMs. The kinematic model of six degree of freedom (6DOF) AACMMs was established, and the structural parameters influencing the accuracy of AACMMs were achieved through analysis. A method to acquire data for identification with a cone-shape hole was presented. With single-point repeatability as the objective function, a modified simulated annealing algorithm (MSAA) was presented to identify structural parameters. A 6-DOF AACMM was used to carry out experimental tests in order to evaluate the efficiency of the MSAA, showing that after identification the repeatability and length measuring accuracy are improved greatly.
articulated arm coordinate measuring machines structural parameters identification repeatability length measurement accuracy
Guanbin Gao Wen Wang Keng Lin Zichen Chen
Institute of Advanced Manufacturing Engineering Zhejiang University Hangzhou,P.R.China
国际会议
长沙
英文
1072-1075
2009-04-11（万方平台首次上网日期，不代表论文的发表时间）