基于双模糊控制算法的数控机床过象限误差补偿方法研究  

Study on the Compensation for the Over Quadrant Error of CNC Based on the Dual Fuzzy Control Algorithm

作　　者：夏筱筠 林浒[2] XIA Xiao-jun;LIN Hu(University of Chinese Academy of Sciences, Beijing 100049 ,China;Shenyang Institute of Computing Technology, Chinese Academy of Sciences, Shenyang 110168 ,China)

机构地区：[1]中国科学院大学,北京100049 [2]中国科学院沈阳计算技术研究所,沈阳110168

出　　处：《小型微型计算机系统》2018年第5期1103-1107,共5页Journal of Chinese Computer Systems

基　　金：国家科技重大专项课题项目(2017ZX04011004)资助

摘　　要：过象限误差补偿对于提高工件的轮廓加工精度具有重要的意义,然而过象限误差的机理较为复杂,常规PID控制器及单模糊控制器对于该摩擦力的控制显得无能为力,本文采用了一种双模糊控制算法,针对不同的区间特性,施以不同的模糊参数进行控制,对于过象限误差控制,其控制效果明显好于常规控制器和单模糊控制器,显著提高了工件的加工精度.The compensation for the quadrant error is of great significance for improving the machining accuracy of theworkpiece,however,the mechanism of quadrant error is more complicated,the conventional PID controller and fuzzy controller to control the friction force is incapable of action. A sectional design method of simple fuzzy controller is proposed. With the method,the control effect for quadrant error compensation is better than the conventional PID controller and fuzzy controller,significantly improve the processing precision of the workpiece.

关 键 词：数控系统 双模糊控制 轮廓误差 过象限摩擦误差 球杆仪检测法 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]