启动阀蝶盘密封失效机理研究  

Research on Sealing Salver’s Failure Mechanism of Starting Valve

作　　者：胡攀[1] 袁洪滨[1] 王运卯[1] 程晓辉[1] Hu Pan;Yuan Hong-bin;Wang Yun-mao;Cheng Xiao-hui(Xi’an Aerospace Propulsion Institute,Xi’an,710100)

机构地区：[1]西安航天动力研究所,西安710100

出　　处：《导弹与航天运载技术》2022年第1期32-35,46,共5页Missiles and Space Vehicles

摘　　要：启动阀为液体火箭发动机的关键组件之一,其长期密封特性受蝶盘密封部位蠕变特性的影响,蝶盘密封部位在加载条件下的应力应变变化过程成为研究重点。通过加载试验获取启动阀蝶盘的蠕变曲线,推算材料模型参数。采用仿真手段,对蝶盘密封失效的机理进行定性和定量研究,得到了启动阀长期密封性能。Starting valve is one of critical components in liquid rocket engine,its long-term sealing quality is enslaved to creeping characteristic of salver’s sealing position.The key of the research is the change of stress-strain of salver’s sealing position.The creeping line of the salver’s sealing position is obtained through load test,the parameters of material model are calculated.The qualitative and quantitative effects of sealing salver’s failure mechanism are studied by using simulation.Sealing starting valve’s characteristic is obtained.

关 键 词：启动阀 失效 

分 类 号：V431[航空宇航科学与技术—航空宇航推进理论与工程]