Collaborative optimization of maintenance and spare ordering of continuously degrading systems |
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Authors: | Wei Zhou Dongfeng Wang Jingyu Sheng Bo Guo |
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Institution: | 1. College of Information System and Management, National University of Defense Technology, Changsha 410073, P. R. China 2. Beijing Special Engineering Design and Research Institute, Beijing 100028, P. R. China |
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Abstract: | A collaborative optimization model for maintenance and spare ordering of a single-unit degrading system is proposed in this paper based on the continuous detection. A gamma distribution is used to model the material degradation. The degrading decrement after the imperfect maintenance action is assumed as a random variable normal distribution. This model aims to obtain the optimal maintenance policy and spare ordering point with the expected cost rate within system lifecycle as the optimization objective. The rationality and feasibility of the model are proved through a numerical example. |
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Keywords: | collaborative optimization maintenance   spare ordering degrading system |
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