液压伺服阀的热力学模型研究及数字仿真  

Thermal-hydraulic Modeling and Simulation of Hydraulic Servo Valve

作　　者：李永林[1] 李宝瑞[2] 沈燕良[1] 胡良谋[1] 

机构地区：[1]空军工程大学工程学院,西安710038 [2]陆军航空兵学院装备部,北京101114

出　　处：《系统仿真学报》2009年第2期340-343,347,共5页Journal of System Simulation

基　　金：国家自然科学基金(60572172)

摘　　要：以能量守恒原理为基础推导了控制体内温度变化的计算公式,结合伺服阀的压力流量特性,提出了建立伺服阀热力学模型的方法。对包含一个四通滑阀的液压系统进行建模和仿真,仿真结果表明,模型可以很好的反映阀在各种工况下的动态热力特性,对提高液压系统热力学建模及仿真的精度具有较好的参考意义。The formula of temperature change in control volume was derived based on conservation of energy. Based on that and the pressure flow characteristic of servo valve, a kind of precisely modeling approach to the study of the servo valve was presented. The modeling strategy was used in a hydraulic system containing the four-port slide valve. The simulation result shows that the dynamic thermal-hydraulic characteristic of servo valve on various working condition is precisely predicted, which provides references to increase the modeling and simulation precision of hydraulic system.

关 键 词：热液压 伺服阀 温度 仿真 

分 类 号：TH137.523[机械工程—机械制造及自动化]