| 类似系统可靠性信息在复杂系统Bayes可靠性评估中的应用 |
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| 引用本文： | 刘琦,冯静,周经伦.类似系统可靠性信息在复杂系统Bayes可靠性评估中的应用[J].航空动力学报,2004,19(1):7-11. |
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| 作者姓名： | 刘琦 冯静 周经伦 |
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| 作者单位： | 国防科技大学,系统工程研究所,湖南,长沙,410073;国防科技大学,系统工程研究所,湖南,长沙,410073;国防科技大学,系统工程研究所,湖南,长沙,410073 |
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| 摘 要： | 先验分布的确定是运用Bayes方法进行复杂系统可靠性评估的先决条件。本文研究了利用类似系统的可靠性信息通过加权融合确定先验分布的方法。对Weibull和指数分布模型的可靠性试验结果,给出Bayes方法可靠性计算公式。最后给出的一个实例表明,该方法计算简便、便于工程应用。
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| 关 键 词： | 航空、航天推进系统 Bayes分析 可靠性评估 加权因子 超参数 |
| 文章编号： | 1000-8055(2004)01-0007-05 |
| 收稿时间： | 3/6/2003 12:00:00 AM |
| 修稿时间： | 2003年3月6日 |
Application of Similar System Reliability Information to Complex System Bayesian Reliability Evaluation |
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| LIU Qi,FENG Jing and ZHOU Jing-lun.Application of Similar System Reliability Information to Complex System Bayesian Reliability Evaluation[J].Journal of Aerospace Power,2004,19(1):7-11. |
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| Authors: | LIU Qi FENG Jing and ZHOU Jing-lun |
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| Institution: | National University of Defence Technology, Changsha410073, China |
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| Abstract: | How to acquire proper prior distribution is a key problem in complex system Bayesian reliability evaluation.In this paper,the application of similar system reliability information to system reliability evaluation is studied.By weighting factor,similar system's information was converted to the prior information of a new system.The reliability test data based on Weibull and exponential distribution model is analysied,and reliability evaluation formula is presented.Finally an example is given to show this method is simple in computation and usable in application. |
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| Keywords: | aerospace propulsion system Bayesian analysis reliability evaluation weighting factor super parameter |
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