液压减振器用比例阀动态特性仿真研究  

Simulation Study on Dynamic Characteristics of Proportional Valve Used in Hydraulic Shock Absorber

作　　者：谢方伟[1,2] 周锐 王登帅 赵锐 虞鑫仕 曹金鑫 XIE Fangwei;ZHOU Rui;WANG Dengshuai;ZHAO Rui;YU Xinshi;CAO Jinxin(School of Mechatronic Engineering,China University of Mining and Technology,Xuzhou Jiangsu 221116,China;School of Mechanical Engineering,Jiangsu University,Zhenjiang Jiangsu 212013,China;Test Branch of China Coal Research Institute Co.,Ltd.,Beijing 100013,China)

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116 [2]江苏大学机械工程学院,江苏镇江212013 [3]煤炭科学技术研究院有限公司检测分院,北京100013

出　　处：《机床与液压》2021年第1期99-103,共5页Machine Tool & Hydraulics

基　　金：国家自然科学基金面上项目(51675234)。

摘　　要：比例阀是可调阻尼减振器核心元件,其动态特性直接影响着减振器的阻尼调节效果。提出一种减振器用比例阀,介绍其结构及工作原理。建立比例阀的动态特性模型,对比例阀的动态特性进行仿真分析。研究激励电压、负载压差、运动阻尼系数及阀芯-衔铁质量对阀芯上升时间、响应时间的影响。结果表明:激励电压越大、负载压差越小、阻尼系数越小,比例阀响应时间和阀芯上升时间越短;阀芯-衔铁组件质量对比例阀动态时域特性影响较小。The proportional valve is the core component of the adjustable damping shock absorber,and its dynamic characteristics directly affect the damping adjustment effect of the shock absorber.A proportional valve for shock absorber was proposed.The structure and working principle of the shock absorber were introduced.The dynamic characteristic model of the valve was established,and its dynamic characteristics were simulated and analyzed.The effects of the excitation voltage,load differential pressure,motion damping coefficient and the mass of the spool and armature on the rising time and response time of the spool were studied.The results show that the higher the excitation voltage is,the smaller the load pressure difference is,the smaller the damping coefficient is,the shorter the proportional valve response time and the spool rising time are;the mass of the spool and armature assembly has less influence on the dynamic time domain characteristics of the proportional valve.

关 键 词：减振器 可调阻尼 比例阀 动态特性 

分 类 号：TH137.5[机械工程—机械制造及自动化]