某推进系统气路启动特性研究  

Starting characteristics of pneumatic system in propulsion system

作　　者：张银勇 吴剑 李向党 

机构地区：[1]上海空间推进研究所,上海201112

出　　处：《火箭推进》2012年第6期20-23,51,共5页Journal of Rocket Propulsion

基　　金：中国航天科技集团公司支撑项目(2007JY06)

摘　　要：为研究某推进系统气路启动特性,找到造成影响减压阀建压稳定性的原因,获得稳定的减压阀出口压力建压过程,依据系统仿真方法及相关试验,对该推进系统气路启动特性进行了研究。结果表明,减压阀阀后压力稳定性与阀后的管径及阀内的阻尼孔存在关系。In order to find the reason which affects the pressure-establishment stability of the re- lief valve and obtain the stable pressure-establishment process at outlet of the relief valve, the starting characteristics of a pneumatic system used in some propulsion system were researched by means of system simulation method and relevant tests. The result shows that the pressure stability behind the re- lief valve depends on the diameter of the pipe behind this valve and damping area inside this valve.

关 键 词：减压阀 系统仿真 压力稳定性 

分 类 号：V434-34[航空宇航科学与技术—航空宇航推进理论与工程]