Multi-Level Optimization Policy of Opportunistic Maintenance and Inventory Control of k-out-of-n System

For the maintenance outsourcing requirements of complex systems in service-oriented manufacturing, a multi-level optimization policy of opportunistic maintenance and inventory control (OMICP) is proposed by considering the challenges of redundant machine interference, high shutdown penalty, and spar...

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Veröffentlicht in:Shànghăi jiāotōng dàxué xuébào 2023-03, Vol.57 (3), p.285-296
1. Verfasser: CAO Lei, AN Xiangxin, XIA Tangbin, ZHENG Meimei, XI Lifeng
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Sprache:chi
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Zusammenfassung:For the maintenance outsourcing requirements of complex systems in service-oriented manufacturing, a multi-level optimization policy of opportunistic maintenance and inventory control (OMICP) is proposed by considering the challenges of redundant machine interference, high shutdown penalty, and spare parts inventory limit of k-out-of-n: G system. At the machine layer, the degeneration model of each machine is built. Then, preventive maintenance cycles of each machine are outputted in sequence by minimizing the maintenance cost rate. At the system level, these maintenance time points are taken as opportunities. In addition, a dynamic combination opportunistic maintenance policy is established by comprehensively considering inventory level, shutdown quantity, and redundancy interference. At the joint level, based on the opportunistic maintenance decision feedback, the inventory control policy is updated in real time by modeling and analyzing the profit balance of spare parts ordering. Through this multi-level i
ISSN:1006-2467
DOI:10.16183/j.cnki.jsjtu.2022.030