Availability of a system subject to hidden failure inspected at constant intervals with non-negligible downtime due to inspection and downtime due to repair/replacement |
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Authors: | Tianqiao Tang Daming Lin Dragan Banjevic Andrew KS Jardine |
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Institution: | Department of Mechanical and Industrial Engineering, University of Toronto, 5 King''s College Road, Toronto, Ontario, Canada M5S 3G8 |
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Abstract: | For systems with hidden or unrevealed failures, a common practice is to inspect the system regularly, since failures can only be detected upon inspection. Recent works in the literature have studied the availability of a system under periodic inspection, assuming perfect repair/replacement with non-negligible downtime due to repair/replacement for a detected failure. In some situations, however, not only downtime due to repair/replacement but also downtime due to inspection is non-negligible regardless whether a failure was detected or not. In this paper, we consider the availability of a system subject to hidden failure inspected at constant interval with both non-negligible downtime due to inspection and non-negligible downtime due to repair/replacement. |
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Keywords: | Hidden failure Instantaneous availability Limiting average availability Periodic inspection Calendar-based Age-based |
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