Accession Number : AD0748004

Title :   The Design of a Multi-Item, Multi-Ship, Multi-Echelon Repair System.

Descriptive Note : Technical rept.,

Corporate Author : CONTROL ANALYSIS CORP PALO ALTO CALIF

Personal Author(s) : Porteus,Evan L. ; Lansdowne,Zachary F.

Report Date : AUG 1972

Pagination or Media Count : 56

Abstract : The design of a multi-item, multi-ship, multi-echelon repair system is considered. The model assumes an overall budget constraint is imposed, the budget being required to fund the number of spares of each type of item on board each ship, and also to fund the repair expenditures over all the repair echelons. The inputs into the model are the marginal costs of reducing the repair times at each echelon for each item, the costs of spares, the failure rates for each item on each ship, and the likelihoods that the repair of a failure of a given item on a given ship will necessitate work at a given echelon (e.g., local, tender, depot). The model then determines the optimal provisioning in terms of the number of spares for each item on board each ship, and the average repair times at each echelon, by item, so as to minimize, within the budget constraint, an arbitrary weighting of the average deficiencies, i.e. backorders, over all items and ships. (Author)

Descriptors :   (*NAVAL EQUIPMENT, MAINTENANCE), (*RELIABILITY, SPARE PARTS), MATHEMATICAL MODELS, DECISION THEORY, STATISTICAL DISTRIBUTIONS, STOCHASTIC PROCESSES, QUEUEING THEORY, CONVEX SETS, OPTIMIZATION, THEOREMS

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Logistics, Military Facilities and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE