华南理工大学学报(自然科学版) ›› 2020, Vol. 48 ›› Issue (2): 122-128.doi: 10.12141/j.issn.1000-565X.190687

• 流体动力与机电控制工程 • 上一篇    下一篇

新型系泊机构气动控制分支建模及摩擦力补偿试验研究

张伟1,2 李淳潮2 李志远2 尚尧2   

  1. 1. 燕山大学 河北省重型机械流体动力传输与控制重点实验室,河北 秦皇岛 066004;2. 燕山大学 机械工程学院,河北 秦皇岛 066004
  • 收稿日期:2019-10-08 出版日期:2020-02-25 发布日期:2020-06-23
  • 通信作者: 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
  • 作者简介:张伟(1971-),男,博士,教授,主要从事液压、气动伺服研究。
  • 基金资助:
    国家自然科学基金资助项目 (51875496)

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

ZHANG Wei1,2 LI Chunchao2 LI Zhiyuan2 SHANG Yao2   

  1. 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)

摘要: 以新型系泊机构气动控制系统为研究背景,以其单个气动分支为例,建立了比例压力阀阀控缸动态数学模型,并对模型的正确性进行了实验验证; 针对一腔形成位置闭环、另外一腔恒压力的独立负载口控制方式,通过将高频低幅的颤振信号叠加于恒压腔比例压力阀控制信号来对摩擦力进行补偿。仿真和实验结果表明,颤振补偿将系统定位精度从补偿前的 1. 1mm 提高到补偿后的 0. 5mm。

关键词: 气动控制, 比例压力阀, 摩擦力, 颤振信号

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