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This paper proposed an integrated importance based maintenance decision making method to provide reasonable maintenance schemes for decision makers. First, the concept of integrated importance measure (IIM) is introduced and its physical meaning and characteristics in maintenance are discussed. Then, a new maintenance decision making model (MDM) is put forward by extending the influence diagram. The...
Maintenance is a common activity for anyone of machines. Different maintenance strategies have different efficiencies. In this present paper, a new maintenance strategy, named Efficiency-Centered Maintenance (EfCM), is developed. Some factors such as expectation reliability, economy, planning maintenance period, and residual reliability have been discussed. And in the last, an experimental equation...
In this study, the meaning of 5 million cycles' endurance test on escalator steps and moving walks pallets which required by international standards (EN115, CSA B 44/A.17) is analyzed on the view point of reliability and changed these test cycles into the life cycle to be assured. Based on the test data from Korea Testing Laboratory (hereunder refer to as KTL) and manufacturers, the shape parameter...
A proposal for an alternative methodology to solve optimal maintenance problems is presented in this paper. Monte Carlo simulation and Response Surface Equations constitute the core of the methodology to enable the rapid processing of optimization without oversimplifying either the input probability distributions or system structure. A numerical study of the Time Limited Dispatch of Full Authority...
An equipment performance study, based on a combination of statistical analysis and predictive modeling, was undertaken on voltage regulators at an electric utility in the Midwest in order to improve its maintenance program. It determined the reliability of equipment in service by studying the number and types of failures occurring on the different types of single-phase voltage regulators within distribution...
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