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.
出处
《系统仿真学报》
CAS
CSCD
北大核心
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)
关键词
热液压
伺服阀
温度
仿真
thermal-hydraulic
servo valve
temperature
simulation
