Maintenance, reliability and performance optimization for remanufacturing and sustainability

本研究计划旨在调查再制造，更新或二手物品的维护，可靠性和性能优化问题。再制造，即通过拆卸、清洁、修理和更换零件以及重新组装将使用过的或报废/使用结束的产品恢复到类似新的状态的过程，已被证明对制造商和消费者都具有经济和环境吸引力。再制造的可行性在很大程度上取决于返回产品的数量和质量。这些退回产品的退化状况和状态会影响通过拆卸这些产品回收的组件的可靠性和成品率。在再制造过程中使用这些部件还需要升级活动和修复，这可能会增加所生产的再制造二手产品的成本。此外，制造商往往提供慷慨的保修范围，以吸引消费者。所有这些物流、生产、销售和支持决策对环境和成本的影响都很高，因此需要开发数学模型来分析这些问题，并在决策过程中为再制造商和消费者提供信息。该研究计划的长期目标是在可持续制造和逆向物流的背景下开发一个全面综合的可靠性，安全性，质量和维护模型和决策工具框架。要解决的短期目标是开发闭环供应链模型，将拆卸、零件可靠性和修复因素结合起来，以支持有效的再制造活动，开发新零件和修复零件的混合策略，以实现耐用二手产品的再制造，开发新的维护、可靠性改进模型和保修模型，以优化更新系统的性能。其成果预计将是知识的进步与出版的模型开发，培训高素质的研究生和环保意识的工程师，并有利于加拿大公司在逆向物流和再制造领域的工作。

This research program proposes to investigate the maintenance, reliability and performance optimization issues for remanufactured, refreshed or second-hand items. Remanufacturing, the process of restoring used or end-of-life/end-of-use products to like-new conditions by disassembly, cleaning, repairing and replacing parts, and reassembly, has proven to be attractive economically and environmentally for both manufacturers and consumers. The viability of remanufacturing is heavily conditioned by the quantity and quality of the returned products. The condition and state of degradation of these returned products affect the reliability and yield rates of the components recovered by disassembly from these products. Using these parts in the remanufacturing process also requires upgrading activities and reconditioning that can increase the cost of the remanufactured second-hand products produced. Moreover, manufacturers tend to offer generous warranty coverage in order to attract consumers. The environmental and cost implications of all these logistics, production, sales and support decisions are high and therefore require the development of mathematical models to analyze these problems and inform remanufacturers and the consumer in their decision-making process.******The long-term goals of this research program are to develop a comprehensive and integrated framework of reliability, safety, quality and maintenance models and tools for decision making in the context of sustainable manufacturing and reverse logistics.***The short-term objectives to be addressed are to develop closed-loop supply chain models integrating disassembly, parts reliability and reconditioning factors to support efficient remanufacturing activities, develop mixing strategies of new and reconditioned parts to enable the remanufacturing of durable second-hand products, develop new maintenance, reliability improvement models and warranty models to optimize the performance of refreshed systems. The outcomes are expected to be the advancement of knowledge with the publication of the models to be developed, training of highly qualified graduate students and environmentally conscious engineers, and benefit the Canadian companies working in the areas of reverse logistics and remanufacturing.