| 验前信息的决策方法 |
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| 引用本文： | 王学,高普云,冯志刚,李静.验前信息的决策方法[J].机械强度,2009,31(4). |
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| 作者姓名： | 王学 高普云 冯志刚 李静 |
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| 作者单位： | 国防科技大学,航天与材料工程学院军事航天系,长沙,410073 |
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| 摘 要： | 在一些实际的可靠性工程中,对产品提出可靠性指标(如可靠度、可靠度置信下限等)要求的同时,试验经费又决定了只能做少量的试验.在这种小子样数据情况下,Bayes方法所获的可靠性评估结论依赖于验前信息.为了评定产品是否满足可靠性指标,须给出验前信息的决策域.文中提出一种验前信息决策域的计算方法,并将其用于计算成败型和指数寿命分布型产品验前信息的决策域.通过两个算例说明以上方法是有效可行的.
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| 关 键 词： | Bayes方法 小子样 验前信息 可靠性评定 决策分析 |
DECISION METHOD OF PRIOR INFORMATION |
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| WANG Xue,GAO PuYun,FENG ZhiGang,LI Jing.DECISION METHOD OF PRIOR INFORMATION[J].Journal of Mechanical Strength,2009,31(4). |
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| Authors: | WANG Xue GAO PuYun FENG ZhiGang LI Jing |
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| Affiliation: | Department of Military Aerospace;National University of Defense Technology;Changsha 410073;China |
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| Abstract: | In some practical reliability engineering,the reliability indexes (such as reliability value,the lower confidential limit of reliability) are required,besides the reliability test just can be done for few times because of the limited test expenses. In this circumstance of small-sample,the result of the reliability estimation by Bayesian method depends strongly on the prior information. To understand whether the product satisfies the given reliability index,a decision area about the prior information must be... |
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| Keywords: | Bayesian method Small-sample Prior information Reliability estimation Decision analysis |
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