基于金字塔模型的导弹发动机可靠性评估方法研究  

Study on Reliability Evaluation Method of Missile Engine Based on Pyramid Model

作　　者：许胜刚 陆家乐 李劲 XU Shenggang;LU Jiale;LI Jin(CEPREI,Guangzhou 511370,China;Key Laboratory of Electronic Information Product Reliability and Enviromental Engineering Center in Guangzhou,Guangzhou 511370,China)

机构地区：[1]工业和信息化部电子第五研究所,广东广州511370 [2]广州市电子信息产品可靠性与环境工程中心重点实验室,广东广州511370

出　　处：《电子产品可靠性与环境试验》2021年第S01期43-46,共4页Electronic Product Reliability and Environmental Testing

摘　　要：导弹发动机属于系统复杂、短期工作、一次性使用的不可维修产品,如果完全依靠全比例发动机地面试车和飞行试验来评定其可靠性,就会带来耗费大、周期长和试验系统复杂的问题。同时,在子样数较小的情况下,不可能全面地评定发动机的可靠性。首先,构建了导弹发动机金字塔模型;然后,通过数据折算,将不同的可靠性分布单元可靠性试验数据折算为成败型数据;最后,将单元可靠性试验数据与整机地面试车数据进行综合,有效地评估了导弹发动机的整机可靠性。Missile engine is a non-repairable product with complex system,short-term work and one-time use.If its reliability is evaluated by solely relying on the full-scale engine ground test and flight test,it will bring the problems of large cost,long cycle and complex test system.Meanwhile,in the case of small sub-samples,it is impossible to comprehensively evaluate the reliability of the engine.Firstly,the missile engine pyramid model is constructed.Then,the reliability test data of different reliability distribution units are converted into success-failure data through data conversion.Finally,the unit reliability test data is integrated with the ground test data of the whole machine,and the reliability of the whole missile engine is effectively evaluated.

关 键 词：导弹发动机 可靠性评估 金字塔模型 整机可靠性 

分 类 号：TJ760.32[兵器科学与技术—武器系统与运用工程] TB114.39[理学—概率论与数理统计]