Reliability evaluation of a multi-state system with dependent components and imprecise parameters
A structural reliability treatment
Abstract
Reliability evaluation of a multi-state system (MSS) with dependent components makes much practical sense because the independent identical assumption (i.i.d.) assumption between different components is sometimes impractical in the context of real engineering cases. The task becomes more challenging if imprecision gets involved due to the pervasive uncertainty. The loss of monotony resulting from the introduction of imprecise parameters makes many analytical reliability methods not applied. To address this challenge, in this paper, we develop a survival signature-based reliability framework for an MSS taking into account both dependence and uncertainty. In our framework, the survival function is derived through some unique structural reliability treatments. Vine copula and imprecise probability are integrated and embedded within the framework to address the case that dependence and imprecision simultaneously appear. Implementation-wise, two numerical simulation algorithms are developed to address some complicated cases in which the analytical solution is not available. For demonstration and validation, both the numerical case and application examples are presented. The results show the superiority of the proposed method and its potential in real engineering use.
Details
- Organisation(s)
-
Institute for Risk and Reliability
- External Organisation(s)
-
University of Science and Technology Beijing
City University of Hong Kong
KU Leuven
University of Liverpool
Tongji University
- Type
- Article
- Journal
- Reliability Engineering and System Safety
- Volume
- 250
- No. of pages
- 13
- ISSN
- 0951-8320
- Publication date
- 10.2024
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality, Industrial and Manufacturing Engineering
- Electronic version(s)
-
https://doi.org/10.1016/j.ress.2024.110240 (Access:
Closed
)
https://lirias.kuleuven.be/retrieve/e50ed565-ced1-40cf-b339-26c75d4b5636 (Access: Open )
