Selection of reliability parameters and targets assessment for certain missile turbofan engine
-
摘要: 根据弹用涡扇发动机的结构和使用特点,选择平均故障间隔时间MTBF(Mean Time Between Failure)、起动可靠度RST(Rate of Startup Successfully)、平均故障前工作时间MTTF(Mean Time To Failure)作为弹用涡扇发动机的可靠性参数体系.MTBF是反映发动机基本可靠性参数,利用Bayes数据融合技术建立MTBF评定模型.RST是反映发动机起动可靠性参数,利用基于故障树分析方法建立起动可靠性评定模型.MTTF是反映发动机任务可靠性参数,基于在任务期间发动机关键件的寿命分布模型进行可靠性评定.通过应用表明:评定参数选择合理,指标评定方法有效,为评估弹用发动机在研制、生产、使用阶段的可靠性水平提供了参考依据.Abstract: Based on the characteristics of structures and employments on missile turbofan engine, mean time between failure(MTBF), rate of startup successfully(RST)and mean time to failure(MTTF)were chosen as the parameters of reliability evaluation. MTBF reflect the basic reliability, and MTBF evaluation model was erected based on Bayes data fusion technology. RST reflect starting reliability, and RST evaluation model was established by dint of fault tree analysis. MTTF embody mission reliability, and MTTF distribution model according to key components during operation founded. These evaluation methods are evaluated by application on certain missile turbofan engine. The parameters are selected effectively, the models are correct, and the conclusions can be used as reference in reliability evaluation during development and employment.
-
Key words:
- missile turbofan engine /
- reliability parameter /
- targets assessment /
- data fusion
-
[1] GJB1909-5-94,装备可靠性维修性参数选择和指标确定要求(军用飞机)[S] GJB1909-5-94, Reliability and maintainability parameter selection and methods of their indexof equipment(military aircraft)[S](in Chinese) [2] GJB241-87,航空涡轮喷气和涡轮风扇发动机通用规范[S] GJB 241-87, General criterion of jet turbine engineand fan jet engine[S](in Chinese) [3] 周源泉.质量可靠性增长与评定方法[M].北京:北京航空航天大学出版社, 1997:27-68 Zhou Yuanquan. Quality reliability growth evaluation method[M]. Beijing:Beijing University of Aeronautics and Astronautics Press,1997:27-68(in Chinese) [4] Kececioglu D. Reliability and life testing handbook[M]. New Jersey: PTR Prentice Hall, 1993:102-135 [5] Erto P.New practical Bayes estimates for the 2-parameter Weibull distribution[J]. Microelectronics Reliability, 1994,34(5):789-802 [6] Elperin T, Gertsbakh I. Bayes credibility estimation of an Exponential parameter for random censoring & incomplete information[J]. IEEE Trans on Reliability,1990,39(2):204-208 -
点击查看大图
计量
- 文章访问数: 4995
- HTML全文浏览量: 98
- PDF下载量: 2217
- 被引次数: 0
下载:
