Optimal Replacement Policies for a Parallel System with Shortage and Excess Costs | ||||
Author | Mingchih Chen
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Co-Author(s) | Xufeng Zhao; Toshio Nakagawa
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Abstract | A parallel redundant system plays an important role in reliability theory. This paper discusses age and random replacement policies for a parallel system by introducing shortage and excess costs to satisfy job schedules with random working and processing times, and two cases when the number of units are a constant n and a variable N are considered for respective replacements. Expected costs and their cost rates are derived, and optimal policies are discussed analytically and computed numerically.
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Keywords | Parallel system, age replacement, random replacement, random units, shortage cost, excess cost | |||
Article #: 19155 |
August 5-7, 2013 - Honolulu, Hawaii, U.S.A. |