| 逆Weibull分布环境因子及其统计分析 |
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| 引用本文： | 韩庆田,李文强,卢洪义.逆Weibull分布环境因子及其统计分析[J].装备环境工程,2011,8(6):54-57. |
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| 作者姓名： | 韩庆田 李文强 卢洪义 |
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| 作者单位： | 海军航空工程学院,山东烟台,264001 |
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| 基金项目： | 总装预研基金项目(513190103) |
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| 摘 要： | 首先给出了逆Weibull分布环境因子的定义；然后给出了极大似然估计和Bayes估计方法,针对装备试验数据较少的情况,采用Fisher信息阵确定先验分布；最后对不同的估计方法进行了仿真分析,结果表明Bayes估计方法比极大似然估计有更高的精度和更小的偏差.
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| 关 键 词： | 环境因子 逆Weibull分布 失效机理 |
| 收稿时间： | 2011/3/19 0:00:00 |
| 修稿时间： | 2011/12/15 0:00:00 |
Environment Factor of Inverse Weibull Distribution and Its Statistical Analysis |
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| HAN Qing-tian,LI Wen-qiang and LU Hong-yi.Environment Factor of Inverse Weibull Distribution and Its Statistical Analysis[J].Equipment Environmental Engineering,2011,8(6):54-57. |
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| Authors: | HAN Qing-tian LI Wen-qiang and LU Hong-yi |
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| Institution: | HAN Qing-tian,LI Wen-qiang,LU Hong-yi(Naval Aeronautical and Astronautical University,Yantai 264001,China) |
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| Abstract: | The definition of environment factor of inverse Weibull distribution was put forward;Then the MLE and Bayes estimation methods were used to estimate the inverse Weibull distribution environment factor,and the Fisher information matrix was used to determine prior distribution for small quantities of equipment data.Finally,simulation analysis was carried out on different estimation methods.The result showed that the Bayes estimation method is more precise and has smaller error than maximum likelihood estimati... |
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| Keywords: | environment factor inverse Weibull distribution failure mechanism |
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