基于最优信息量的液体火箭发动机可靠性增长规划

液体火箭发动机可靠性要求高、试验费用昂贵，有必要对其可靠性增长过程进行综合规划。提出基于最优信息量的液体火箭发动机可靠性增长规划方法，采用基于可靠性增长数据折合的指数型贝叶斯可靠性增长模型评估产品可靠性。考虑到产品本身存在一定的不确定性，采用贝叶斯风险决策方法，在考虑决策风险的情况下，对可靠性增长试验进行综合规划。算例说明了该方法的有效性及应用前景。

Reliability Growth Planning for Liquid Rocket Engine Based on Optimal Information

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 reducing 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 reliability growth model for reliability growth data was used to evaluate reliability. Because of the consideration of the uncertainty of reliability, a Bayesian risk method was used to optimize reliability test. Example was given to show its validity and application foreground.