基于多源信息的发动机无故障数据可靠性评估  

Reliability Assessment of Zero-failure Engine Data Based on Multi-sources Information

作　　者：韩庆田[1] 曹文静[1] 李文强[1] 

机构地区：[1]海军航空工程学院,烟台264001

出　　处：《导弹与航天运载技术》2012年第3期52-54,58,共4页Missiles and Space Vehicles

基　　金：总装预研项目(5130190103)

摘　　要：针对弹用发动机无故障数据可靠性评估问题,提出基于多源信息的可靠性评估方法;综合应用修正极大似然估计和Bayes估计方法,给出信息源权值的计算公式和可靠性评估步骤,最后给出应用实例。计算结果表明,多源信息融合方法计算简单,评估结果合理,具有一定工程应用价值。According to the reliability assessment of zero-failure data of missile engine, a method for reliability assessment based on multi-sources information is presented. Both the modified MLE and Bayes estimation were comprehensively used in the method. The algorithms of weighted value for different information sources, and the procedures and a numerical example for assessment are given out. The result shows that calculation in the method is simple and assessing result is reasonable. Thus, the method is proved to be applicable and effective.

关 键 词：可靠性评估 无故障数据 修正极大似然估计 BAYES估计 

分 类 号：V41[航空宇航科学与技术—航空宇航推进理论与工程]