Pneumatic Control Branch Modeling and Friction Compensation Test of New Mooring Mechanism

doi:10.12141/j.issn.1000-565X.190687

Journal of South China University of Technology(Natural Science Edition) ›› 2020, Vol. 48 ›› Issue (2): 122-128.doi: 10.12141/j.issn.1000-565X.190687

• Fluid Power & Electromechanical Control Engineering • Previous Articles Next Articles

Pneumatic Control Branch Modeling and Friction Compensation Test of New Mooring Mechanism

ZHANG Wei^1,2 LI Chunchao² LI Zhiyuan² SHANG Yao²

1． Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control，Yanshan University，Qinhuangdao
066004，Hebei，China; 2． School of Mechanical Engineering，Yanshan University，Qinhuangdao 066004，Hebei，China

Received:2019-10-08 Online:2020-02-25 Published:2020-06-23
Contact: 张伟(1971-)，男，博士，教授，主要从事液压、气动伺服研究。 E-mail:zhangwei@ysu. edu. cn
About author:张伟(1971-)，男，博士，教授，主要从事液压、气动伺服研究。
Supported by:
Supported by the National Natural Science Foundation of China (51875496)

Abstract

Abstract: Under the research background of the pneumatic control system of new mooring mechanism，taking its single pneumatic branch as an example，the dynamic mathematical model of proportional pressure valve control cy-linder was established and verified by experiments． Given the control mode of independent load port，namely，one cavity is position closed loop and the other is constant pressure control mode，the high frequency and low amplitude chatter signal was superimposed on the control signal of the constant pressure chamber to compensate the friction force． The simulated and experimental results show that chatter compensation improves the positioning accuracy of the system from 1. 1mm to 0. 5mm．

Key words: pneumatic control, proportional pressure valve, friction, chatter signal

ZHANG Wei, LI Chunchao, LI Zhiyuan, et al. Pneumatic Control Branch Modeling and Friction Compensation Test of New Mooring Mechanism[J]. Journal of South China University of Technology(Natural Science Edition), 2020, 48(2): 122-128.

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Pneumatic Control Branch Modeling and Friction Compensation Test of New Mooring Mechanism

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