|Table of Contents|

Allocation of structural reliability index for reusable liquid rocket engine(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2018年06期
Page:
39-43+80
Research Field:
研究与设计
Publishing date:

Info

Title:
Allocation of structural reliability index for reusable liquid rocket engine
Author(s):
YANG Jinhui1;  QI Yaqun2;  JIN Ping2;  CAI Guobiao2
1.Beijing Aerospace Propulsion Institute, Beijing 100076,China; 2.Beihang University,Beijing 100191,China
Keywords:
reusable liquid rocket engine;  whole service life;  allocation of structural reliability index
PACS:
V434-34
DOI:
-
Abstract:
Aiming at the repeated characteristics and minimizing the reliability deviation of each subsystem during the whole service life, an allocation method of structural reliability index is proposed for the reusable liquid rocket engine.Based on the equal reliability allocation, this method takes the reliability deviation of whole service life as the objective function and uses the genetic algorithm to optimize the allocation results.It can avoid the “weak point” of each subsystem in operation while satisfying the reliability at the end of engine life.The specific allocation method is introduced with an example of reusable hydrogen-oxygen rocket engine.Compared with the equal allocation method, the reliability deviation of each subsystem in the whole engine service life is decreased by 35%, which validating the feasibility and effectiveness of proposed method.

References:

[1] 谭松林, 李宝盛.液体火箭发动机可靠性[M].北京: 中国宇航出版社, 2014.
[2] 李斌.液体火箭发动机结构可靠性设计与分析[D].长沙:国防科学技术大学, 2006.
[3] 尤明懿.一种面向设计寿命全过程的电子系统可靠性分配法[J].电子产品可靠性与环境试验, 2012(1):32-36.
[4] 周明, 孙树栋.遗传算法原理及应用[M].北京: 国防工业出版社, 2002.
[5] 严俊峰, 陈炜.基于遗传算法的低比转速高速泵优化设计[J].火箭推进, 2006,32(3):1-7.
YAN J F, CHEN W.Optimum design of low-specific-speed high-speed centrifugal pump based on genetic algorithm[J].Journal of rocket propulsion, 2006,32(3):1-7.
[6] 魏鹏飞.一种综合分析LRE减损控制律的智能方法研究[J].火箭推进, 2008,34(3):1-6.
WEI P F.Research of an intelligent method to analyze damage- mitigating control law for liquid- propellant rocket engine[J].Journal of rocket propulsion, 2008,34(3):1-6.
[7] CHEN T, LI J, JIN P, et al.Reusable rocket engine preventive maintenance scheduling using genetic algorithm[J].Reliability engineering & system safety, 2013,114:52-60.
[8] 马欣 В А, 米连柯 Н П, 普罗尼 Л В.液体火箭发动机试验研制的理论基础[M].王迺奇,译.北京:国防工业出版社, 1978.
[9] 宁江凡.液体火箭发动机无失效条件下的可靠性评估方法研究[D].长沙:国防科学技术大学, 2005.
[10] 李宝盛, 郝京辉.液体火箭发动机寿命可靠性的贝叶斯下限[J].导弹与航天运载技术, 2009(4):8-10.
[11] 张骏华, 徐孝诚, 周东生.导弹和运载火箭结构强度可靠性设计指南(金属结构部分)[M].北京: 宇航出版社, 1994.
[12] 陈涛.可重复使用火箭发动机指标分配策略研究[D].北京: 北京航空航天大学, 2016.

Memo

Memo:
-
Last Update: 2018-12-25