A new non-probabilistic time-dependent reliability model for mechanisms with interval uncertainties

Qi Chang, Changcong Zhou, Pengfei Wei, Yishang Zhang, Zhufeng Yue

科研成果: 期刊稿件文章同行评审

42 引用 (Scopus)

摘要

This paper proposes a new non-probabilistic time-dependent reliability model for evaluating the kinematic reliability of mechanisms when the input uncertainties are characterized by intervals. Based on the introduction of the non-probabilistic interval process of motion error, the most probable point of an outcrossing is defined to transform the complicated time-dependent problem into a concisely time-independent problem. A non-probabilistic time-dependent reliability index is proposed to evaluate the kinematic reliability of various mechanisms, and two computational strategies are designed to calculate the index. Then, the proposed reliability model is applied to a numerical example, a typical four-bar linkage mechanism and a car rack-and-pinion steering linkage mechanism, to demonstrate the significance of the proposed reliability model. The results show that the proposed model provides an effective tool for making reliability evaluation of time-dependent problems.

源语言英语
文章编号107771
期刊Reliability Engineering and System Safety
215
DOI
出版状态已出版 - 11月 2021

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