Reliability Modeling of Scheduled Maintenance Systems with Latent Failures
| Autor: | Samir Palnitkar, Tilak C. Sharma, Arun K. Somani |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Engineering
General Computer Science Corrective maintenance business.industry Planned maintenance Computation Energy Engineering and Power Technology Aerospace Engineering Fault tolerance Industrial and Manufacturing Engineering Predictive maintenance Reliability engineering Nuclear Energy and Engineering Maintenance actions Redundancy (engineering) Electrical and Electronic Engineering Safety Risk Reliability and Quality business Conventional technique |
| Zdroj: | International Journal of Reliability, Quality and Safety Engineering. :359-371 |
| ISSN: | 1793-6446 0218-5393 |
| DOI: | 10.1142/s0218539398000303 |
| Popis: | Component redundancy is used to achieve high reliability and fault tolerance in many ultra-reliable systems. Moreover, redundant components can be checked and repaired at the end of periodic intervals of time, called maintenance check times. In such scheduled maintenance (SM) systems, multiple faults may occur and remain undetected because the effects of the faults on the system are masked by the redundant components. Furthermore, specific maintenance actions may be carried out at the end of each mission to guarantee that the system is not in certain specific or failed states. Accurate reliability computation depends on the appropriate modeling of the system. In this paper, we consider scheduled maintenance checks and conditional maintenance checks, and develop a methodology to analyze systems employing such maintenance strategy. We also describe a tool that we have developed using our algorithm. Examples are presented to prove the aptness of our method. We show that conventional technique vastly overestimates the unreliability of such systems. We also show that for the SM systems, our technique provides a more realistic estimate of reliability. |
| Databáze: | OpenAIRE |
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