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http://hdl.handle.net/10397/89191
| Title: | Modeling multivariate degradation processes with time-variant covariates and imperfect maintenance effects | Authors: | Wang, X Doyen, L Bérenguer, C Xie, M |
Issue Date: | 2020 | Source: | Applied stochastic models in business and industry, 2020, First published: 10 December 2020, Early View, p. 1-20, https://dx.doi.org/10.1002/asmb.2600 | Abstract: | This article proposes two types of degradation models that are suitable for describing multivariate degrading systems subject to time-variant covariates and imperfect maintenance activities. A multivariate Wiener process is constructed as a baseline model, on top of which two types of models are developed to meaningfully characterize the time-variant covariates and imperfect maintenance effects. The underlying difference between the two models lies in the way of capturing the influences of covariates and maintenance: The first model reflects these impacts in the degradation rates/paths directly, whereas the second one describes the impacts by modifying the time scales governing the degradation processes. In each model, two particular imperfect maintenance models are presented, which differ in the extent of reduction in degradation level or virtual age. The two degradation models are then compared in certain special cases. The proposed multivariate degradation models pertain to complex industrial systems whose health deterioration can be characterized by multiple performance characteristics and can be altered or affected by maintenance activities and operating/environmental conditions. | Keywords: | Degradation path adjustment Imperfect maintenance Multivariate wiener process Piecewise constant covariates Time scale adjustment |
Publisher: | John Wiley & Sons | Journal: | Applied stochastic models in business and industry | ISSN: | 1524-1904 | EISSN: | 1526-4025 | DOI: | 10.1002/asmb.2600 | Rights: | © 2020 John Wiley & Sons, Ltd. This is the pre-peer reviewed version of the following article: Wang, X, Gaudoin, O, Doyen, L, Bérenguer, C, Xie, M. Modeling multivariate degradation processes with time‐variant covariates and imperfect maintenance effects. Appl Stochastic Models Bus Ind. 2020; 1– 20 which has been published in final form at https://doi.org/10.1002/asmb.2600. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. |
| Appears in Collections: | Journal/Magazine Article |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| ASMBI_XiaolinWang.pdf | Preprint version | 2.43 MB | Adobe PDF | View/Open |
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