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- Title
Failure-based sealing reliability analysis considering dynamic interval and hybrid uncertainties.
- Authors
Bo Sun; Xi Yang; Yi Ren; Zili Wang; Antosz, Katarzyna; Loska, Andrzej; Jasiulewicz-Kaczmarek, Małgorzata
- Abstract
In the reliability analysis of a sealing structure, radial clearance of the contact surface is usually regarded as a failure criterion, and the sample size is usually quite small, which brings great challenges to uncertainty quantification. Therefore, this paper proposes a reliability analysis method based on the leakage mechanism of the sealing. With the application of dynamic interval, the proposed method can be used to deal with problem of degradation in small sample to evaluate reliability. Moreover, the dynamic reliability with the mixture of the probabilistic and non-probabilistic variables can be obtained using the proposed method. An illustrative numerical case study of a spool valve is conducted in order to validate the proposed method and the implemented reliability sensitivity analysis. The proposed method is of great help in evaluating and predicting reliability with small degradation sample and hybrid uncertainties.
- Subjects
UNCERTAINTY; SAMPLE size (Statistics); SENSITIVITY analysis; FAILURE analysis
- Publication
Maintenance & Reliability / Eksploatacja i Niezawodność, 2021, Vol 23, Issue 2, p278
- ISSN
1507-2711
- Publication type
Article
- DOI
10.17531/ein.2021.2.7.