Journal of Northeastern University Natural Science ›› 2019, Vol. 40 ›› Issue (3): 360-364.DOI: 10.12068/j.issn.1005-3026.2019.03.011

• Mechanical Engineering • Previous Articles     Next Articles

Reliability Analysis of Wear Gradient of Automobile Parts

YANG Zhou1, HU Quan-quan1, ZHANG Yi-min2, GUO Bing-shuai1   

  1. 1.School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China; 2.College of Mechanical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China.
  • Received:2018-01-02 Revised:2018-01-02 Online:2019-03-15 Published:2019-03-08
  • Contact: YANG Zhou
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Abstract: To study the reliability of automobile parts under the influence of abrasion, the biggest wear loss is taken into account in the gradual changing reliability model and the model of reliability state with the changing of time is obtained. Then, the secondary moment and the random perturbation method are adopted to give a quantitative analysis of the gradual changing reliability and the sensitivity. Finally, the effectiveness of the proposed method is confirmed by an example and the Monte Carlo. The fitting curves of the regularities of distribution of reliability and of sensitivity with abrasion are obtained, which can well reflect the change of reliability of dangerous sections of automobile parts in wear conditions and provide references for the gradual changing reliability with abrasion.

Key words: automobile parts, abrasion, gradual changing reliability, Monte Carlo, sensitivity

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