File:A simulation of readiness-based sparing policies (IA asimulationofrea1094555559).pdf
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Summary[edit]
A simulation of readiness-based sparing policies
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| Author |
Wray, John D. |
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| Title |
A simulation of readiness-based sparing policies |
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| Publisher |
Monterey, California: Naval Postgraduate School |
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| Description |
We develop a simulation to complement a new optimization tool that establishes inventory levels for aviation weapon systems (WS) in the U.S. Navy. The optimization seeks cost minimization while achieving required readiness rates for hundreds of WS, each comprising thousands of indentured parts. Based on work in similar realms, the optimization employs the Vari-Metric model and a variant of a greedy heuristic algorithm to set stock levels and estimate overall WS availability. Our discrete event simulation is then used to test the assumptions of the new optimization tool, compare its performance to other optimization tools available, and provide additional metrics for decision makers. In testing the new optimization tool, we find that (a) there is no systemic bias in estimated readiness; and (b) 53 of 64 WS simulated yield results within 5% difference, with a worst-case difference of 8%. We also test two legacy optimization tools currently in use by the Navy and find they have a larger difference in expected readiness. Finally, we demonstrate additional insights and metrics from the simulation that are not available in the optimization tools. Subjects: readiness-based sparing; discrete event simulation; optimization; multi-indenture; inventory; supply |
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| Language | English | |
| Publication date | June 2017 | |
| Current location |
IA Collections: navalpostgraduateschoollibrary; fedlink |
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| Accession number |
asimulationofrea1094555559 |
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| Source | ||
| Permission (Reusing this file) |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. | |
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
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| current | 19:02, 14 July 2020 |  | 1,275 × 1,650, 72 pages (735 KB) | Fæ (talk | contribs) | FEDLINK - United States Federal Collection asimulationofrea1094555559 (User talk:Fæ/IA books#Fork8) (batch 1993-2020 #8268) |
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