Reliability assessment methods considering failure correlation and importance analysis for multiple progressive damage

Zhixuan Gao, Deyin Jiang, Xinchen Zhuang, Weimin Cui and Tianxiang Yu

Reliability Engineering and System Safety, 2025, vol. 264, issue PB

Abstract: Aircraft complex mechanisms are susceptible to multiple progressive damage in operation, where a particular form of damage can have an effect on the strength of another through the mechanism transmission. The results of reliability analysis that ignores the correlation between them will deviate from the actual situation. To address the above problems, based on the characteristics of multiple progressive damage, two correlation models of multiple progressive damage are established, and a reliability assessment method considering the correlation of multiple progressive damage is proposed. Based on the vine copula theory, the correlation model of multiple progressive damage systems at different times was established, and the reliability of the system was calculated based on Monte Carlo method. Based on the importance theory, the importance analysis method is further proposed for multiple progressive damage. The results of the engineering case study show that ignoring the correlation between multiple progressive damage can lead to an inaccurate system reliability assessment, the maximum relative error to the reliability results for the independent case is 25 %. And the types of damage that need to be focused on maintenance are obtained by importance analysis, and the method provides a reference for the reliability assessment of complex mechanisms in aerospace.

Keywords: Reliability analysis; Correlation analysis; Importance analysis; Multiple progressive damage; Drag chute lock mechanism (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0951832025005903
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:264:y:2025:i:pb:s0951832025005903

DOI: 10.1016/j.ress.2025.111389

Access Statistics for this article

Reliability Engineering and System Safety is currently edited by Carlos Guedes Soares

More articles in Reliability Engineering and System Safety from Elsevier
Bibliographic data for series maintained by Catherine Liu ().