关键词: 运筹学 , 液体火箭发动机 , 可靠性增长 , 信息融合 , 贝叶斯风险

Abstract: Liquid rocket engine demands high reliability, but test expenditure is costly. It is necessary to plan reliability test to decide stopping time for saving test cost, shortening development cycle and re?ducing risk. According to the characteristics of liquid rocket engine, the reliability growth planning for liquid rocket engine based on optimal information was brought forward. An exponential Bayesian relia?bility growth model for reliability growth data was used to evaluate reliability. Because of the consider?ation of the uncertainty of reliability, a Bayesian risk method was used to optimize reliability test. Ex?ample was given to show its validity and application foreground.

Key words: operational research , liquid rocket engine , reliability growth , information fusion , Bayesian risk