A pre-compensation method of the systematic contouring error for repetitive command paths  

作　　者：D. L. ZHANG Y. H. CHEN Y. P. CHEN 

机构地区：[1]State Key Laboratory of Digital Manufacturing Equipment andTechnology, School of Mechanical Science and Engineering, HuazhongUniversity of Science and Technology, Wuhan 430074, China

出　　处：《Frontiers of Mechanical Engineering》2015年第4期367-372,共6页机械工程前沿（英文版）

摘　　要：For a repetitive command path, pre-compen- sating the contouring error by modifying the command path is practical. To obtain the pre-compensation value with better accuracy, this paper proposes the use of a back propagation neural network to extract the function of systematic contouring errors. Furthermore, by using the extracted function, the contouring error can be easily pre- compensated. The experiment results verify that the proposed compensation method can effectively reduce contouring errors.For a repetitive command path, pre-compen- sating the contouring error by modifying the command path is practical. To obtain the pre-compensation value with better accuracy, this paper proposes the use of a back propagation neural network to extract the function of systematic contouring errors. Furthermore, by using the extracted function, the contouring error can be easily pre- compensated. The experiment results verify that the proposed compensation method can effectively reduce contouring errors.

关 键 词：contouring error pre-compensation motioncontrol system back propagation （BP） neural network 

分 类 号：U469.11[机械工程—车辆工程] X53[交通运输工程—载运工具运用工程]