柔性关节臂式测量机的误差仿真分析  

Simulation of error analysis for flexible articulated arm coordinate measuring machines

作　　者：黄奎[1] 莫健华[1] 钟凯[1] 余立华[1] 史玉升[1] 王从军[1] 

机构地区：[1]华中科技大学材料科学与工程学院,武汉430074

出　　处：《北京科技大学学报》2010年第10期1346-1352,共7页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.50875093)

摘　　要：基于局部指数积(localPOE)公式建立了柔性关节臂式测量机的理想运动学模型,依据各种误差因素修正得到实际运动学模型,详细分析了各种运动学参数误差对测量精度的影响.仿真结果表明,长度类的运动学参数误差对测量结果不会引起放大或缩小,而角度类的运动学参数误差会引起测量结果的严重放大.An ideal mathematical model of flexible articulated arm coordinate measuring machines （FAACMM） was established based on the local product-of-exponentials （Local POE） formula, and then an actual kinematic model was obtained by amending the ideal mathematical model according to various errors. Various kinematic parameter errors which affect the system＇s measuring precision were analyzed detailedly. Simulation results show that the errors of length kinematic parameters do not cause the measurement results to zoom in or out, but the errors of angle kinematic parameters should result in serious amplification.

关 键 词：测量机 误差分析 运动学模型 旋量理论 

分 类 号：TH721[机械工程—仪器科学与技术]