Mechanical Engineering |
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Multi-principle preventive maintenance: a design-oriented scheduling study for mechanical systems |
Yi-cong Gao, Yi-xiong Feng, Jian-rong Tan |
State Key Lab of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China |
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Abstract Preventive maintenance (PM) is very important for the safe, efficient, and reliable operation of mechanical systems. This paper focuses on one of the most challenging tasks for PM: PM scheduling. Two basic principles are integrated to support the PM scheduling of mechanical systems: (1) the cost principle, and (2) the reliability principle. These two PM scheduling principles are regarded as conflicting objectives, and the improved strength Pareto evolutionary algorithm is used to find the Pareto-optimal set within which the best compromise solution can be obtained according to fuzzy set theory. Both conceptual and mathematical models of the proposed multi-principle PM scheduling method are explained, and a case study is provided to illustrate the practical application of the new method.
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Received: 15 April 2014
Published: 04 November 2014
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