Accession Number : ADA185584

Title :   Dynamic Repair Allocation for a K Out of N System Maintained by Distinguishable Repairmen.

Descriptive Note : Rept. for 1 Oct 86-30 Sep 87,

Corporate Author : COLUMBIA UNIV NEW YORK DEPT OF STATISTICS

Personal Author(s) : Katehakis, Michael N ; Melolidakis, Costis

PDF Url : ADA185584

Report Date : 05 Aug 1987

Pagination or Media Count : 17

Abstract : The authors consider a K out of N system maintained by R repairmen, where the lifetime of the i sub th component is an exponentially distributed random variable with parameter micron sub i. Repairmen are distinguishable, and the time it takes the r sub th repairmen to repair a failed component is an exponentially distributed random variable with parameter lambda sub k. Repaired components are as good as new and preemptions are allowed. It is shown that the policy which assigns the faster repairmen to the most reliable components is optimal with respect to several optimality criteria. The approach taken in establishing stochastic optimality with respect to the number of functioning components is of wide applicability to different classes of stochastic optimization problems. (Author)

Descriptors :   *REPAIR, *LIFE EXPECTANCY(SERVICE LIFE), *STATISTICAL ANALYSIS, ALLOCATIONS, OPTIMIZATION, RELIABILITY, STOCHASTIC PROCESSES, RANDOM VARIABLES, FAILURE

Subject Categories : Operations Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE