Proportional-integral based fuzzy sliding mode control of the milling head

被引:12
|
作者
Zhao, Pengbing [1 ]
Shi, Yaoyao [2 ]
Huang, Jin [1 ]
机构
[1] Xidian Univ, Key Lab Elect Equipment Struct Design, Minist Educ, Xian 710071, Shaanxi, Peoples R China
[2] Northwestern Polytech Univ, Key Lab Contemporary Design & Integrated Mfg Tech, Minist Educ, Xian 710071, Shaanxi, Peoples R China
基金
中国国家自然科学基金;
关键词
A-axis; Positioning control; Parameters adaptation; Sliding mode control; Proportional-integral control; MAGNET SYNCHRONOUS MOTOR; NEURAL-NETWORK; ADAPTIVE-CONTROL; REACHING LAW; A-AXIS; SYSTEMS; MACHINE; UNCERTAINTIES; COMPENSATION; PERFORMANCE;
D O I
10.1016/j.conengprac.2016.04.012
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A-axis (that is, the milling head) is an essential assembly in the five-axis CNC machine tools, positioning precision of which directly affects the machining accuracy and surface qualities of the processed parts. Considering the influence of nonlinear friction and uncertain cutting force on the control precision of the A-axis, a novel fuzzy sliding mode control (FSMC) based on the proportional-integral (PI) control is designed according to the parameters adaptation. Main idea of the control scheme is employing the fuzzy systems to approximate the unknown nonlinear functions and adopting the PI control to eliminate the input chattering. Simulation analyses and experimental results illustrate that the designed control strategy is robust to the uncertain load and the parameters perturbation. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1 / 13
页数:13
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