吉林大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (增刊1): 104-107.

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Reliability analysis of spindle system base on location-scale model

GU Dong-wei1, SHEN Gui-xiang1, ZHANG Ying-zhi1, WANG Zhi-qiong1, DING Ye1, LIANG Dong2   

  1. 1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
    2. College of Automotive Engineering, Jilin University, Changchun 130022, China
  • Received:2011-10-31 Online:2012-09-01 Published:2012-09-01

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Abstract: In order to assess the customer satisfaction index—MTTFF (Mean Time To First Failure) of spindle system, a regularly censored field test with 24 sets of spindle systems was performed. According to the characteristics of the small sample and some spindle system with non-failure data, a location-scale model was introduced to estimate the parameters of Weibull distribution, and the Weibull distribution hypothesis was validated by d test and run test. Finally, MTTFF of the spindle system was obtained by using the parameters according to the Weibull model.

Key words: machine tool, location-scale model, Weibull distribution, spindle system, run test

CLC Number: 

  • TB114.3
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