基于AMESim的继动阀动态特性研究

The Analysis of Dynamic Characteristics for Relay Valve Based on AMESim

针对继动阀动态控制过程特性复杂、制动效果不精确等问题,以某客车继动阀为研究对象,基于继动阀的物理结构以及气动基础理论,引入了AMESim多领域仿真模型软件,建立继动阀AMESim动态模型,通过改变继动阀的输入气压、阀口直径、控制气压参数,进行仿真研究,分析其压力特性及响应特性,研究了可对继动阀动态响应特性产生影响的各个因素。进而建立气压制动系统整体AMESim模型,验证继动阀在整体中的作用及其正确性。为该部件的结构优化和阀体设计提供数据支持,进一步提高了气压制动系统的快速性。

For the problem that the characteristic of dynamic control process is complex and braking effect is not accurate in relay valve.Taking a relay valve of a bus as the research object. Based on the physical structure of the relay valve and basic theory ofpneumatic,the AMESim dynamic model of relay valve was established by multi-field simulation software AMESim. The pressure characteristic and the response characteristic are analyzed to study the factors that affect the dynamic characteristics of the relay valve by changing input pressure of relay valve,valve mouth diameter and control pressure parameters. Then establish the whole AMESim model of the pneumatic braking system to verify the function and correctness of the relay valve in the whole.This model provided theoretical support for structural optimization of relay valve and improve the quickness of air brake system.