| 某型号液体火箭发动机可靠性分析 |
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| 引用本文： | 王婷婷,师义民,刘英.某型号液体火箭发动机可靠性分析[J].航天控制,2009,27(6). |
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| 作者姓名： | 王婷婷 师义民 刘英 |
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| 作者单位： | 西北工业大学应用数学系,陕西西安,710072 |
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| 基金项目： | 国家自然科学基金，陕西省教育厅自然科学基金 |
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| 摘 要： | 基于逐步增加Ⅱ型截尾样本,讨论了某型号液体火箭发动机可靠性指标的Bayes估计及E-Bayes估计.在刻度平方误差损失函数下,给出了火箭发动机寿命分布参数、可靠度函数及失效率函数的Bayes估计及E-Bayes估计.最后运用Monte Carlo方法对各种估计的均方误差进行了模拟比较.结果表明,E-Bayes估计给出的估计精度高.
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| 关 键 词： | 液体火箭发动机 刻度平方误差损失函数 E-Bayes估计 Bayes估计 |
Reliability Analysis for a Kind of Liquid Rocket Motor |
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| WANG Tingling,SHI Yimin,LIU Ying.Reliability Analysis for a Kind of Liquid Rocket Motor[J].Aerospace Control,2009,27(6). |
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| Authors: | WANG Tingling SHI Yimin LIU Ying |
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| Abstract: | Based on progressively type-Ⅱ censored samples, the Bayesian estimations and E-Bayesian estimations for a kind of liquid rocket motor are discussed. The Bayesian estimations and E-Bayesian estimations for some lifetime parameters, reliability function and hazard function are obtained under the execution of scaled squared error loss function. Finally, the statistical performances are compared through the MSE based on Monte Carlo method. According to these comparisons, it suggests that the derived E-Bayes estimation is more preferable. |
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| Keywords: | Liquid rocket motors Scaled squared error loss E-Bayesian estimation Bayesian estimation |
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