RESEARCH ON MECHATRONIC COUPLING FACTS OF LINEAR MOTOR FEED DRIVE SYSTEM BASED ON SPECTRUM CHARACTERISTICS

被引:0
|
作者
Liu, Hui [1 ]
Yang, Xiaojun [1 ]
Zhang, Huijie [1 ]
Zhao, Wanhua [1 ]
Zhang, Jun [1 ]
Cao, Kun [1 ]
机构
[1] Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Peoples R China
来源
INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION - 2012, VOL 4, PTS A AND B | 2013年
关键词
DISCRETE CONTROLLERS; INTEGRATED DESIGN; SERVOMECHANISMS; METHODOLOGY;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, the servo thrust and mechanical structure are analyzed in frequency domain using Maxwell Tensor and Dale Bert's principle, respectively. Three modes of mechatronic coupling are found as follows. 1) The thrust spectrum varies with velocity, which leading to a worse dynamic precision and even instability when the coupling occurs at a certain resonance frequency between the thrust and the mechanical structure; 2) The coupling occurs between mechanical structure and servo system when adjusting the gain in speed control loop or current control loop. 3) The output of linear encoder will fluctuate due to the variation of normal force between the mover and stator, which leading to the variation of the servo thrust spectrum and a re-coupling between servo drive and mechanical structure. In addition, the mechanism and influence factors of the three types of coupling are studied, respectively. The results show that the spectrums of servo drive system and mechanical structure evolve under different control parameters and operational condition, and happen to interaction once at the same natural frequency. Finally, the associated experiments are performed to verify the previous analysis.
引用
收藏
页码:895 / 903
页数:9
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