Optimal preventive maintenance planning for multiple elevators

The purpose of this paper is to properly plan the preventive maintenance schedule for multiple elevators and optimize the number of maintenance workers.The total amount of the maintenance cost consisting of the labor cost, the part cost, and the quality cost the loss evaluated in terms of cost, to b...

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Bibliographic Details
Published in:Journal of quality in maintenance engineering 2001-06, Vol.7 (2), p.128-150
Main Authors: Yamashina, Hajime, Otani, Shunsuke
Format: Article
Language:English
Subjects:
Breakdowns
Elevators & escalators
Failure
Labor costs
Lifts
Maintenance
Maintenance management
Manufacturing
Mathematical models
Optimization
Planning
Preventive maintenance
Scheduling
Service centers
Standard deviation
Studies
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Summary:The purpose of this paper is to properly plan the preventive maintenance schedule for multiple elevators and optimize the number of maintenance workers.The total amount of the maintenance cost consisting of the labor cost, the part cost, and the quality cost the loss evaluated in terms of cost, to be incurred when an elevator breaks down is to be minimized.The method is presented of setting up the optimal preventive maintenance schedule on a longterm basis by rescheduling the contents of schedule dynamically and flexibly in accordance with the everchanging maintenance conditions, taking the possibility of the future occurrence of failure into consideration. From numerical experiments, the validity of the proposal procedure for planning the preventive maintenance schedule and the effectiveness of considering the possibility of the future occurrence of failure in planning the schedule are shown, and the optimal number of maintenance workers can be decided.
ISSN:1355-2511
1758-7832
DOI:10.1108/13552510110397430