| DISTRIBUTED MONITORING SYSTEM RELIABILITY ESTIMATION WITH CONSIDERATION OF STATISTICAL UNCERTAINTY |
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| 作者姓名： | Yi Pengxing Yang Shuzi Du Runsheng Wu Bo Liu Shiyuan School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan China |
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| 作者单位： | Yi Pengxing Yang Shuzi Du Runsheng Wu Bo Liu Shiyuan School of Mechanical Science and Engineering，Huazhong University of Science and Technology，Wuhan 430074，China |
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| 基金项目： | This project is supported by National Natural Science Foundation of China(No.50335020,No.50205009)
Laboratory of Intelligence Manufacturing Technology of Ministry of Education of China(No.J100301). |
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| 摘 要： | Taking into account the whole system structure and the component reliability estimation uncertainty, a system reliability estimation method based on probability and statistical theory for distributed monitoring systems is presented. The variance and confidence intervals of the system reliability estimation are obtained by expressing system reliability as a linear sum of products of higher order moments of component reliability estimates when the number of component or system survivals obeys binomial distribution. The eigenfunction of binomial distribution is used to determine the moments of component reliability estimates, and a symbolic matrix which can facilitate the search of explicit system reliability estimates is proposed. Furthermore, a case of application is used to illustrate the procedure, and with the help of this example, various issues such as the applicability of this estimation model, and measures to improve system reliability of monitoring systems are discussed.
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| 关 键 词： | 统计不确定性 分布式监控系统 可靠性 置信度 |
DISTRIBUTED MONITORING SYSTEM RELIABILITY ESTIMATION WITH CONSIDERATION OF STATISTICAL UNCERTAINTY |
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| Yi Pengxing Yang Shuzi Du Runsheng Wu Bo Liu Shiyuan School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan ,China.DISTRIBUTED MONITORING SYSTEM RELIABILITY ESTIMATION WITH CONSIDERATION OF STATISTICAL UNCERTAINTY[J].Chinese Journal of Mechanical Engineering,2005,18(4):519-524. |
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| Authors: | Yi Pengxing Yang Shuzi Du Runsheng Wu Bo Liu Shiyuan |
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| Affiliation: | School of Mechanical Science and Engineering,Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | Taking into account the whole system structure and the component reliability estimation uncertainty, a system reliability estimation method based on probability and statistical theory for distributed monitoring systems is presented. The variance and confidence intervals of the system reliability estimation are obtained by expressing system reliability as a linear sum of products of higher order moments of component reliability estimates when the number of component or system survivals obeys binomial distribution. The eigenfunction of binomial distribution is used to determine the moments of component reliability estimates, and a symbolic matrix which can facilitate the search of explicit system reliability estimates is proposed. Furthermore, a case of application is used to illustrate the procedure, and with the help of this example, various issues such as the applicability of this estimation model, and measures to improve system reliability of monitoring systems are discussed. |
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| Keywords: | Distributed monitoring system Statistical uncertainty Variance Confidence intervals System reliability estimation |
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