Nigerian Journal of Technology

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Design of Preventive Maintenance Scheduling Model for Deteriorating Systems

PA Ozor, SO Onyegegbu


Maintenance has gained in importance as a support function for ensuring equipment availability. Adoption of effective preventive maintenance culture in an industry can drastically reduce the cost of premature or over delayed maintenance, while accurate maintenance action can sustain continuous and reliable operation of equipment. This paper presents the design of preventive maintenance scheduling models for deteriorating systems based on reliability criterion. It describes how age reduction and reliability improvement can be achieved after an individual preventive maintenance. The models were demonstrated by way of applying them to a specific deteriorating but renewable system. The results obtained gave a successively decreasing maintenance interval above an operational reliability level.

AJOL African Journals Online