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| 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 |
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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.
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Received: 03 September 2013
Published: 15 March 2015
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