Journal ArticleDOI
Modeling and control simulation of giant magnetostrictive actuator
Chen Dingfang,Shu Liang,Chen Min +2 more
TLDR
In order to improve the response speed and steady output, the PID controller is designed to adjust the system, and the continuous and dispersed system models are simulated separately.Abstract:
A kind of giant magnetostrictive actuator(GMA)is designed.The structure and its working principle are presented and the static performance experiments are done.Through the analysis of the experimental results,the better linear work domain is found.Based on that,the mathematical model of GMA is analyzed and built.In order to improve the response speed and steady output,the PID controller is designed to adjust the system,and the continuous and dispersed system models are simulated separately.Then the effect of the controller is obtained.Finally,the experimental results are presented.Through the comparison between simulation results and experimental ones,it is shown that model of GMA is effective.read more
Citations
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Journal ArticleDOI
Study on nonlinear dynamics characteristics of electrohydraulic servo system
Yong Zhu,Yong Zhu,Wanlu Jiang,Wanlu Jiang,Xiang-dong Kong,Xiang-dong Kong,Zhi Zheng,Zhi Zheng +7 more
TL;DR: In this paper, a nonlinear dynamic model of the electrohydraulic servo system (EHSS) was established and the bifurcation characteristics and typical nonlinear dynamics behaviors implied within system were revealed.
Journal ArticleDOI
Estimation of dynamic behaviors of hydraulic forging press machine in slow-motion manufacturing process
TL;DR: In this paper, stick-slip phenomenon of hydraulic forging press machine (HFPM), a nonlinear manufacturing system subjected to weak rigidity and negative friction velocity gradient, was investigated in slow-motion process.
Journal ArticleDOI
Low-speed instability analysis for hydraulic motor based on nonlinear dynamics
TL;DR: In this paper, a nonlinear dynamics model and a mathematical expression were set up to investigate the mechanism and conditions of vibration creep acceleration, and some measures were proposed to improve the low-speed stability of the hydraulic motor.
Book ChapterDOI
Researches on Magnetostrictive Hybrid Vibration Isolation System Based on Sliding Mode Algorithm
TL;DR: Numerical simulation results show that the proposed magnetostrictive hybrid vibration isolation system (MHVIS) can quickly improve system response speed, broaden vibration frequencies and effectively decrease the force transmitted to foundation with a good control performance.
Journal ArticleDOI
Nonlinear dynamic analysis of complex hydraulic driving processes
Hao Sui,XinJiang Lu +1 more
TL;DR: A nonlinear dynamic analysis method is proposed to overcome the complexity and strong nonlinearity of hydraulic driving processes, which makes their dynamic behavior difficult to estimate.
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