Evaluation of Availability in Symmetric Bridge System with Weibull Lifetime Distribution
DOI:
https://doi.org/10.29020/nybg.ejpam.v19i1.6973Keywords:
Availability analysis, Bridge system, Weibull distribution, Failure and repair rates, Availability equivalence factorsAbstract
This paper evaluates the availability of a symmetric bridge system composed of five identical repairable components. The system is modeled as a coherent structure that cannot be reduced to a pure series or parallel configuration. The failure and repair times of each component are assumed to follow the Weibull distribution. Five improvement techniques are considered: failure rate reduction, repair rate increase, hot, warm, and cold duplication. The availability equivalence factor is computed to compare the effectiveness of these methods. Simulation results are presented to distinguish among the improvement, revealing that cold duplication provides the highest improvement in system availability.
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Copyright (c) 2026 Adel El-Faheem, Mohamed A Denguir , Abdallah Aldurayhim, A. Rashad, M. Nour, Hossam A. Nabwey
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