Strategic Study of CAE >> 2015, Volume 17, Issue 5
A two-echelon (S-1,S) inventory model for repairable items based on markovian arrival process
Department of Management Engineering, Naval University of Engineering, Wuhan 430033, China
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Abstract
This paper investigates a two-echolon inventory system with (S-1,S) policy that consists of several same repairable items and single repair facility, and assumes that the item demand occur according to a markovian arrival process (MAP), the repair time, ship time and procurement time follow the general distribution which is represented by phase-type (PH) distribution. Then a inventory optimization model with better description ability and analytical performance is given, and the probability distribution of backorder is obtained. Finally, a numerical example was given to illustrate the effectiveness of the model.
Keywords
(S-1 ; S) policy ; two-echelon inventory ; repairable item ; markovian arrival process
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