A failure-repair model with minimal and major maintenance

Author

Sim, S.H. ; Endrenyi, J.

Author_Institution

Ontario Hydro Res. Div., Toronto, Ont., Canada

Volume

42

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

134

Lastpage

140

Abstract

A Markov model for a continuously operating service device whose condition deteriorates with time in service is proposed. The model incorporates deterioration and Poisson failures, minimal repair, periodic minimal maintenance, and major maintenance after a given number of minimal maintenances. An exact recursive algorithm computes the steady-state probabilities of the device. A cost function is defined using different cost rates for the different types of outages. Based on minimal unavailability or minimal costs, optimal solutions of the model are derived. Major maintenance is seldom beneficial if optimal maintenance intervals are used. If a maintenance policy is based on nonoptical intervals between maintenances, periodic major maintenance can reduce costs

Keywords

Markov processes; failure analysis; maintenance engineering; probability; reliability theory; Markov model; Poisson failures; continuously operating service device; cost function; deterioration; exact recursive algorithm; failure-repair model; major maintenance; minimal repair; minimal unavailability; nonoptical intervals; optimal maintenance intervals; periodic minimal maintenance; reliability; steady-state probabilities; Closed-form solution; Cost function; Employee welfare; Hazards; Markov processes; Preventive maintenance; Reliability theory;

fLanguage

English

Journal_Title

Reliability, IEEE Transactions on

Publisher

ieee

ISSN

0018-9529

Type

jour

DOI

10.1109/24.210285

Filename

210285