In this study, we focus on a real life problem that involves a single item which is
used in military operations. The items in use fail according to a Poisson process
and lead times are deterministic. Four alternative inventory control models are
developed. Among these models, a two-echelon system consisting of a depot in
the upper and several bases in the lower echelon is operated currently. This
system is compared to a single-echelon system that consists of several bases. The
comparison reveals the importance of the holding cost incurred for the items intransit
between the depot and the base which is ignored in most of the studies in
literature. Both the two and single-echelon models are also extended to have
repair ability. A continuous-review base-stock policy is used for all models.
Exact models are formulated. The results are obtained under various lead time,
unit costs and demand parameters. Results of four different settings are compared
and the findings are reported.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12613949/index.pdf |
| Date | 01 December 2011 |
| Creators | Ozpamukcu, Serkan |
| Contributors | Bakal, Ismail Serdar |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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