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The Preventive Maintenance Decision Model Based on Multiplicate Factors of System

Author: YangLiXian
Tutor: ZhangMinYue
School: Lanzhou University of Technology
Course: Operational Research and Cybernetics
Keywords: Preventive maintenance cycle Hybrid failure rate The minimal - great law Multi-objective optimization Fuzzy Decision Membership
CLC: O225
Type: Master's thesis
Year: 2011
Downloads: 56
Quote: 1
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Abstract


Maintenance decision-making is an important application of the reliability model , all maintenance strategies are based on the concept of preventive maintenance , preventive maintenance cycle , often taking into account a number of factors before realistic paper system a variety of factors in considering conditions, the use of different preventive maintenance strategy and optimization methods to determine the optimal preventive maintenance cycle First consider the maintenance costs and reliability are two factors studied by the introduction of the hybrid failure rate based on the the diminishing military age factor and failure rate increase factor series system of preventive maintenance cycle model and the single- component system of preventive maintenance the variable cycle model . cycle model finite interval , respectively, as the objective function of reliability and cost of preventive maintenance strategies cycle optimization model for the pursuit of the objective of the different systems maintenance activities to provide a basis for decision making , and are compared with unconstrained variable cycle model in the case of the known number of preventive maintenance , to establish an average cost rate target to the complete repair cycle of each preventive maintenance time reliability constraints optimization model and so on cycle model were compared . then consider the steady-state availability , the average expense ratio and average reliability , use minimal - extremely minor repairs maintenance strategy based on the traditional fault Dafa to steady-state availability , the average expense ratio and average reliability indicators build a preventive maintenance cycle multi-objective optimization model , and the results were compared with the use of linear weighted method . Finally, consider the steady-state available degrees and the average expense ratio of two factors , given the age maintenance strategy based on the average expense ratio and steady-state availability of detailed derivation process , to build a fuzzy decision model decision-making through the comprehensive evaluation of the set of statistics iterative method and classic determine the \

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CLC: > Mathematical sciences and chemical > Mathematics > Operations Research > Game theory ( game theory )
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