Comparison of Two Reliability Models for Two-Unit Cold Standby System with Three Accidental Effects

 International Journal of Mathematical Trends and Technology (IJMTT) © 2014 by IJMTT Journal Volume-8 Number-2 Year of Publication : 2014 Authors : Archana Malik 10.14445/22315373/IJMTT-V8P516

Archana Malik. "Comparison of Two Reliability Models for Two-Unit Cold Standby System with Three Accidental Effects", International Journal of Mathematical Trends and Technology (IJMTT). V8:120-128 April 2014. ISSN:2231-5373. www.ijmttjournal.org. Published by Seventh Sense Research Group.

Abstract
Present paper investigates a two-unit cold standby system with three accidental effects. On the failure of a unit, a repairman comes to repair it. During its repair, an accident may take place which may or may not affect the repairman. If it affects, it may be minor or major. Two models have been discussed. In Model 1, it is assumed that when the repairman gets minor injury with an accident, he goes for treatment/rest for some time. After recovery, he comes back and resumes the repair. If major injury takes place, another repairman is called to complete the repair. In Model 2, it is assumed that whenever minor or major accident takes place, another repairman is called. In both the models, it is assumed that after accident the rest of the repair is done with more attention so that no further accident takes place. Various measures of the system effectiveness are obtained by making use of semi-Markov processes and regenerative point technique. Study through graphs is also made.

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