Accession Number : ADA116932

Title :   Stochastic Availability of a Repairable System with an Age - and Maintenance - Dependent Failure Rate,

Corporate Author : POLYTECHNIC INST OF NEW YORK BROOKLYN DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE

Personal Author(s) : Chan,Jack-Kang

PDF Url : ADA116932

Report Date : Jun 1982

Pagination or Media Count : 115

Abstract : A general repairable system model is proposed with a maintenance schedule such that the failure rate is reduced after each preventive maintenance. The model introduces naturally the concept of system availabilities as random variables. Probability distributions of the stochastic availabilities are derived. The stochastic availability is optimized with respect to the duration of the operating interval between maintenance operations, and with respect to an age replacement policy. Analysis and optimization are achieved by a PASCAL computer program which is developed for computations and illustrations of various failure rate characteristics and parameter variations. The concept is further extended to stochastic cost function or generalized stochastic availability. (Author)

Descriptors :   *Computer program reliability, *Systems engineering, *Reliability, *Maintainability, *Probability distribution functions, Availability, Repair, Failure(Electronics), Stochastic processes, Optimization, Computations, Parameters, Life cycles, Weibull density functions, Scheduling, Preventive maintenance

Subject Categories : Statistics and Probability
      Computer Programming and Software
      Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE