Accession Number : AD0768363

Title :   Redundant Spares Allocation to Reduce Reliability Costs,

Corporate Author : POLYTECHNIC INST OF BROOKLYN N Y DEPT OF ELECTRICAL ENGINEERING AND ELECTROPHYSICS

Personal Author(s) : Sinkar,Sharad G. ; Shaw,Leonard

Report Date : 01 SEP 1973

Pagination or Media Count : 43

Abstract : Due to rapid developments in technology, provision of adequate number of spares at the time of acquisition of equipment has become a significant problem. Increased complexities of modern electronic equipments have resulted in modular designs. In the event of failure of one such a module, it is readily removed and replaced by a new one from the inventory. The problem considered here is the optimal selection of the inventory of spares for a system build from two kinds of modules, the larger of which can be connected so it performs the role of the smaller one. The optimal inventory is the least costly one which achieves a specified probability that the spares will not be exhausted over the design lifetime. For some costs and failure rates it is most economical to use the larger module for both roles because of the resulting increase in flexibility in the deployment of a single type of spare module. The problem has been approached by analytical as well as simulation methods. (Author)

Descriptors :   (*RELIABILITY(ELECTRONICS), OPTIMIZATION), (*REDUNDANT COMPONENTS, SPARE PARTS), FAILURE(ELECTRONICS), COSTS, PROBABILITY, REPLACEMENT THEORY, MODULES(ELECTRONICS), COMPUTER PROGRAMS, INTEGRATED CIRCUITS, INVENTORY CONTROL

Subject Categories : Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE