Parameter Estimation and Application inReliability Analysis of Three-parameter WeibullDistribution
Weibull distribution is one of the most widely distributed in reliability analysis. Three-parameter Weibull distribution,whose positional parameter is not equal to 0,whose parameters cannot beestimated by a simple method, limits its application in reliability analysis. Actually, Three-parameter Weibull distribution is particularly suitable for the case thatthe item has no failure in a period of time at the beginning of use. In this paper, a parameter estimation synthesis graphical method and genetic algorithm for three-parameter Weibull is presented according to the characteristics of distribution. Then three-parameter Weibull is applied in failure analysis for a series of CNC lathes.
The 716th Research Institute of China Shipbuildnig Industry Corporation, Lianyungang 222006,China
Abstract:Weibull distribution is one of the most widely distributed in reliability analysis. Three-parameter Weibull distribution,whose positional parameter is not equal to 0,whose parameters cannot beestimated by a simple method, limits its application in reliability analysis. Actually, Three-parameter Weibull distribution is particularly suitable for the case thatthe item has no failure in a period of time at the beginning of use. In this paper, a parameter estimation synthesis graphical method and genetic algorithm for three-parameter Weibull is presented according to the characteristics of distribution. Then three-parameter Weibull is applied in failure analysis for a series of CNC lathes.
收稿日期: 2013-09-03
出版日期: 2015-03-15
引用本文:
郑锐. 三参数威布尔分布参数估计及在可靠性分析中的应用[J]. 振动与冲击, 2015, 34(5): 78-81.
Zheng Rui. Parameter Estimation and Application inReliability Analysis of Three-parameter WeibullDistribution. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(5): 78-81.
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