摘要
液压系统在工作的时候承受的压力脉冲严重影响着液压元件的寿命。该文设计了一种压力脉冲试验台模拟飞机液压系统液压缸所承受的T型压力脉冲,采用伺服阀对液压缸进油腔压力直接进行控制,以确保试验曲线的准确性。建立了AMESim仿真模型,并通过仿真分析影响脉冲曲线的因素,验证了系统的正确性,为试验台的合理搭建提供支持。分析和仿真表明:压力脉冲的上升速率与伺服阀的瞬时通流能力直接相关。
Pressure pulse of hydraulic system has great influence on the life of hydraulic components. In this paper, a pressure pulse test stand is designed to simulate the trapezium pressure pulse in aircraft hydraulic cylinder when at work. A servo valve is used directly to control the pressure to ensure the accuracy of test curve. The simulation model is built by using AMESim to verify the reliable of designed hydraulic system. The effects of important parameters were discussed which can provide guidance to the pressure pulse test bed. It shows that the rise rate of the pressure pulse curve has close related to the instantaneous flow capacity of the servo valve.
出处
《液压气动与密封》
2012年第9期21-24,共4页
Hydraulics Pneumatics & Seals
基金
国家自然科学基金(51005200)
关键词
压力脉冲
液压试验台
T型波
仿真
pressure pulse
hydraulic test bed
trapezium wave
simulation
