| 疲劳寿命分布模型及其拟合优度检验 |
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| 引用本文： | 董聪,戎海武,夏人伟.疲劳寿命分布模型及其拟合优度检验[J].航空学报,1995,16(2):21-25. |
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| 作者姓名： | 董聪 戎海武 夏人伟 |
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| 作者单位： | 北京航空航天大学飞机系, 北京, 100083 |
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| 摘 要： | 从细观损伤力学的角度出发，建立了几种常用寿命分布所对应的物理模型，给出了相应分布中参数矢量的似然估计表达式，并采用先进拟合优度检验方法对母体分布进行了假设检验。在假定母体服从正态分布、对数正态分布或Ｗｅｉｂｕｌ分布的条件下，计算了相应疲劳寿命的Ｂ基值。
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| 关 键 词： | 损伤力学 寿命 分布 |
| 收稿时间： | 1993-07-14 |
| 修稿时间： | 1994-07-02 |
DISTRIBUTION MODEL OF FATIGUE LIFE AND ITS GOODNESS-OF-FIT TEST |
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| Dong Cong,Rong Haiwu,Xia Renwei.DISTRIBUTION MODEL OF FATIGUE LIFE AND ITS GOODNESS-OF-FIT TEST[J].Acta Aeronautica et Astronautica Sinica,1995,16(2):21-25. |
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| Authors: | Dong Cong Rong Haiwu Xia Renwei |
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| Institution: | Department of Aircraft Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100083 |
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| Abstract: | From the view point of meso-damage mechanics, a lot of practical physical models, which can be used to describe distribution law of fatigue life, are established, the likelihood estimate expressions of these distribution parameters are given, and the hypothesis test on life distribution is made by means of the advanced goodness-of-fit test method. In the case of the fatigue life being normal, lognormal or Weibull distribution, the corresponding B values are calculated. |
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| Keywords: | damage mechanics life distribution |
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