航天推进技术研究院主办
[1]尤裕荣,杜大华,袁洪滨,等.电爆阀启动过程的响应特性与活塞撞击变形分析[J].火箭推进,2012,38(03):49-53.
YOU Yu-rong,DU Da-hua,YUAN Hong-bin,et al.Analyses of response characteristics and piston impact deformation in process of pyro-valve start-up[J].Journal of Rocket Propulsion,2012,38(03):49-53.
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YOU Yu-rong,DU Da-hua,YUAN Hong-bin,et al.Analyses of response characteristics and piston impact deformation in process of pyro-valve start-up[J].Journal of Rocket Propulsion,2012,38(03):49-53.
电爆阀启动过程的响应特性与活塞撞击变形分析
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
38
期数:
2012年03期
页码:
49-53
栏目:
研究与设计
出版日期:
2012-06-15
- Title:
- Analyses of response characteristics and piston impact deformation in process of pyro-valve start-up
- 文章编号:
- 1672-9374(2012)03-0059-06
- 分类号:
- V432-34
- 文献标志码:
- A
- 摘要:
- 对航天飞行器上的高压常闭式电爆阀启动过程的动态响应特性进行仿真，并通过试验验证两者基本吻合。在此基础上，对电爆阀启动过程活塞撞击变形情况进行分析。采用Abaqus软件对活塞与壳体碰撞行为进行显式非线性动态分析，研究了电爆管、材料性能以及电爆阀出口压力条件对活塞撞击变形量的影响。结果表明，电爆阀出口压力条件对活塞与壳体撞击变形量影响最大，出口压力增大对应变形量急剧减小，电爆阀工作的可靠性随之降低。
- Abstract:
- The dynamic response characteristics of high pressure normally-closed pyro-valve on space vehicles were simulated. The results were verified properly by test. Based on simulation results, the piston impact deformation was analyzed. The explicit nonlinear dynamic analysis for the behaviour of piston impacting on the valve body was carried out with Abaqus software. The influence of the initiator, material characteristis and valve outlet pressure conditions on piston impact deformation was investigated. The results indicate that the valve outlet pressure condition is a key factor that inf- luences the valve performance and makes the impact deformation aggravated; and with outlet pressure increasing, the piston impact deformation decreases rapidly and the pyro-valve reliability is degraded.
参考文献/References:
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[5]石亦平, 周玉容. ABAQUS有限元分析实例详解[M]. 北京: 机械工业出版社, 2006.
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备注/Memo
收稿日期：2011-07-26；修回日期：2011-09-20
基金项目：中国航天科技集团公司支撑项目（2005JY02)
作者简介：尤裕荣（1978—），男，高级工程师，研究领域为液体火箭发动机阀设计与仿真技术
更新日期/Last Update:
1900-01-01