System-level damage-threshold interference model for system reliability evaluation

Jian-Peng Chen, Bing-Feng Zhao, Kun Zhang, Li-Yang Xie, Xian-Cheng Zhang, Run-Zi Wang and Wei-Qiao Sun

Reliability Engineering and System Safety, 2025, vol. 262, issue C

Abstract: A system-level damage and threshold interference (SLDTI) model considering correlation information within a system is proposed based on probabilistic analysis framework in this paper. Based on the cumulative damage theory, the SLDTI model takes damage and threshold as two random variables to quantitatively characterize the uncertainty of external load and material properties, respectively. Compared with the traditional from-part-to-system reliability model, the SLDTI model is modeled directly from the system level so that the effect of statistical dependence between the failures of different parts within the system can be embodied inherently. An engineering case study of steam turbine rotor is given to illustrate the process of applying SLDTI model to system reliability assessment. Meanwhile, the surrogate model technology is applied to achieve the acquisition of the probability distribution of the damage of the reference part (RP) and the mapping of the failure correlation between the dangerous parts (DPs) in the system. Furthermore, the effect of uncertainty in damage and threshold on system reliability is quantitatively analyzed. The results indicate that the proposed model is more reasonable than traditional models, particularly when the system is subjected to a volatile service environment, which provides insights for operational maintenance and reliability optimization.

Keywords: Damage threshold; Interference model; System reliability; Surrogate model; Failure correlation (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0951832025003850
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:262:y:2025:i:c:s0951832025003850

DOI: 10.1016/j.ress.2025.111184

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 ().