作为空空导弹的动力装置,火箭发动机需要有很高的可靠性。尽管在设计过程中对可靠性进行了预计,但为了评价发动机的实际可靠性水平,还要从实验结果或实用情况出发,对可靠性进行合理的评估。本文介绍了单项可靠性的评估方法。根据发动机特点,失效模型分两种情况,一种是参数呈两项分布,一种是参数呈正态分布。下面讨论可靠性计算方法。 As the air-to-air missile power plant, the rocket engine needs high reliability. Despite the reliability of the design process was estimated, but in order to assess the actual level of reliability of the engine, but also from the experimental results or practical conditions, the reliability of a reasonable assessment. This article describes a single reliability assessment method. According to the engine characteristics, the failure model is divided into two cases, one is the parameter was two distribution, one is the parameter was normal distribution. The reliability calculation method is discussed below.