Mixed uncertainty analysis for dynamic reliability of mechanical structures considering residual strength

Xintian Liu, Xueguang Yu, Jiachi Tong, Xu Wang and Xiaolan Wang

Reliability Engineering and System Safety, 2021, vol. 209, issue C

Abstract: Aiming at the uncertainty of parameters in structural dynamic reliability analysis model, such as randomness, interval and fuzziness, a dynamic reliability model with mixed uncertain parameters is proposed in this paper. Based on entropy equality information, random and fuzzy variables are transformed. And the different possible uncertainties of parameters are analyzed, four reliability index analysis models are given under different parameters. Probability and interval reliability analysis are adopted to solve the reliability index, and the influence of parameter type on reliability index is discussed. The dynamic reliability index of 45# steel (test specimens) under fatigue load is calculated to verify the feasibility of the proposed method.

Keywords: Dynamic reliability; Residual strength; Uncertain parameters; Interval analysis method (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:209:y:2021:i:c:s0951832021000405

DOI: 10.1016/j.ress.2021.107472

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