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Article Dans Une Revue Universal Journal of Lasers, Optics, Photonics & Sensors Année : 2020

Required Repair Time to Assure the Given/Specified Availability

Résumé

A novel, simple, easy-to-use, flexible and physically meaningful methodology is suggested for the assessment of the required repair/restoration time, so that the object's/system's availability is swiftly restored, thereby keeping this availability on the specified/desirable/required level during the entire time of the system's operation. A working table for the time-dependent availability function is obtained for the following two major governing input variables: 1) the product of the anticipated failure rate of the system of interest and the time of operation and 2) the ratio of the intensity of the restoration process to the meantime to failure (MTTF). This intensity is simply reciprocal to the mean time to repair (MTTR). The general concept is illustrated by a practical example. Several extensions of this work are considered and indicated, and particularly the role of the human-system interaction ("human-in-the-loop") situations, when system's reliability and human performance contribute jointly to the never-100%-failure-free operation process. ______________________________________________________________________________
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Dates et versions

hal-02873985 , version 1 (18-06-2020)

Identifiants

  • HAL Id : hal-02873985 , version 1

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Ephraim Suhir, Jean-Marc Salotti, Johann Nicolics. Required Repair Time to Assure the Given/Specified Availability. Universal Journal of Lasers, Optics, Photonics & Sensors, 2020, 1. ⟨hal-02873985⟩
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