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Copula‐function‐based analysis model and dynamic reliability of a gear transmission system considering failure correlations
Author(s) -
Wei J.,
Pan Z.,
Lin X.,
Qin D.,
Zhang A.,
Shi L.
Publication year - 2019
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/ffe.12876
Subject(s) - copula (linguistics) , residual , structural engineering , reliability (semiconductor) , reliability engineering , transmission system , engineering , computer science , transmission (telecommunications) , mathematics , algorithm , econometrics , physics , power (physics) , electrical engineering , quantum mechanics
In this study, an improved prediction model is introduced to assess the residual strength of gear transmission systems. The residual strength and stress‐strength interference theories are then combined to facilitate the study of the reliability of the gears and bearings in these systems. Based on the copula function, the correlation between the gear contact and bending failure is determined. The relationship between the copula function and reliability is used to determine the dynamic reliability of the gears while considering multiple correlated failure modes. In this manner, more accurate and dynamic reliability attenuation characteristics are obtained for the gear transmission system.