An Improved Parameter Estimation Method for Three-Parameter Weibull Distribution in the Life Analysis of Rolling Bearing

Abstract:

Three-parameter Weibull distribution is playing a more and more important role in the reliability analysis of mechanical products. It can provide higher accuracy and better reflection of reliability in operating situation concerning fitting and parameter estimation for the rolling bearing life data. This paper focuses on the theory derivation of the maximum likelihood estimation of the three-parameter Weibull distribution, puts forward an improved method for the model parameter estimation and draws the life distribution model. Following that, the method has been proved to be correct and accurate by practical examples.The proposed method can provide a more accurate estimate way for the life analysis of rolling bearing based on three-parameter Weibull distribution.

• Periodical: Advanced Materials Research (Volume 569)
• Pages: 442-446
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.569.442
• Online since: September 2012
• Authors: Feng Long Yin, Ya Shun Wang, Chun Hua Zhang, Xiang Po Zhang
• Keywords: Life Analysis, Maximum Likelihood-Estimation (MLE), Parameter Estimation, Rolling Bearing, Three-Parameter Weibull Distribution

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