Industrial Engineering Journal ›› 2021, Vol. 24 ›› Issue (2): 119-124.doi: 10.3969/j.issn.1007-7375.2021.02.015

• practice & application • Previous Articles     Next Articles

Reliability Parameter Estimation of Mining Equipment Based on GM-noise SVR Method

WANG He1, WU Zhenbo1, XU Tian1, WANG Zhiqiang1, LIU Chao2   

  1. 1. College of Energy and Mining Engineering;
    2. College of Economics and Management, Shandong University of Science and Technology, Qingdao 266590, China
  • Received:2020-02-17 Published:2021-04-25

Abstract: A parameter estimation method based on GM-noise SVR is proposed to effectively estimate the parameters of the three-parameter Weibull distribution reliability model of mining equipment under the condition of small samples. The method is based on grey estimation method (GM), and then a ε-band support vector regression (ε-SVR) training model based on training sample number and noise parameter optimization is established. The location parameter, scale parameter and shape parameter of the three-parameter Weibull distribution model are estimated sequentially, and the reliability of the equipment analyzed and predicted through fitting the three-parameter Weibull distribution function. The results of the example show that the GM-noise SVR method can be well used to estimate the reliability model parameters of mining equipment. The location parameter, scale parameters and shape parameter of the three-parameter Weibull distribution of a certain type of belt conveyor estimated to be 3.1525, 188.376, 1.0476, the mean time between failures is 188 hours, and the normalized root mean square error is 0.0519, indicating the feasibility and effectiveness of the method.

Key words: small sample, grey estimation, ε-band support vector regression, reliability analysis

CLC Number: