Modeling and Simulation Analysis for the Self-Sensing Ballscrew Preload System Based on Giant Magnetostrictive Actuator
To achieve automatic measurement and control of the ballscrew preload force,a self-sensing preload device with two-end outputs based on giant magnetostrictive actuator(GMA)is proposed.The mechanical structure and its working principle are presented,and the static characteristic experiment of the GMM rod is adopted to determine the linear working range.Based on the above,the mathematical model of the preload device is established according to the piezomagnetic equation and Newtons second law.Then the research on response performance of the open-loop system is executed and the results indicate that the overshoot and the settling time are relatively large.To improve the dynamic response speed and the steady-state output performance,the PID controller is designed to form a closed-loop control system.The simulation study on the control performance of the closed-loop system is carried out in this paper.When the PID controller is adopted,the results demonstrate good control performance with an overshoot of step response of 3.2%and a settling time of 3.76×10 s.
self-sensing ballscrew preload device giant manetostrictive actuator (GMA) modeling PID controller
Ju Xiaojun Lin Mingxing Wang Zhen
School of Mechanical Engineering,Shandong University,Jinan,Shandong,250061,China
国际会议
第十七届国际制造会议(The 17th International Manufacturing Conference in China)(IMCC 2017))
深圳
英文
1-10
2017-11-23（万方平台首次上网日期，不代表论文的发表时间）