减压器动态特性试验与仿真研究  

Experiment and Simulation of Dynamic Characteristics for Decompressor

作　　者：郑丽[1,2] 李清廉[1] 于向财 沈赤兵[1] 

机构地区：[1]国防科技大学航天与材料工程学院,长沙410073 [2]海军飞行学院,辽宁葫芦岛125001

出　　处：《航空发动机》2009年第2期40-43,29,共5页Aeroengine

摘　　要：针对自主研制的气体减压器,建立了减压器工作过程的数学模型;采用4阶龙格-库塔法,对气调式减压器进行了数值仿真,分析了减压器在充填、开启和关闭过程中的响应特性,并与试验作了对比,得到了减压器控制腔、出口腔和阻尼腔的压力响应曲线和阀芯的开度变化规律曲线,验证了仿真模型的正确性。The mathematical model of the decompressor in the operation process was built for the independent developed gas decompressor. The numerical simulation of air conditioning decompressor was performed by using four-step Runge-Kutta method. The response characteristics of the decompressor in the filling, opening and closing processes were analyzed and the comparison of response characteristics with test was also performed. The pressure response curves of the control cavity, output cavity and damping cavity far the decompressor and the opening variation law curve of valve were obtained to validate the correctness of simulation model.

关 键 词：减压器 动态特性 充填过程 开启过程 关闭过程 仿真模型 

分 类 号：TP242.3[自动化与计算机技术—检测技术与自动化装置] TH138.521[自动化与计算机技术—控制科学与工程]