Strategic decision making method for sharing resources among multiple manufacturing/remanufacturing systems

Shinsuke Kondoh (Corresponding Author), Timo Salmi

    Research output: Contribution to journalArticleScientificpeer-review

    4 Citations (Scopus)

    Abstract

    Purpose

    To reduce products' environmental impact over their entire life cycle, adequate reuse and recycling of products and their components are indispensable. In this context, it is important to establish efficient closed-loop manufacturing systems (CMS), where products are made from post-use as well as new materials. However, the establishment of economically and environmentally efficient CMS is difficult due to the uncertainty associated with the return flows of post-use products. Since product usage conditions and lifetimes differ from user to user, there are significant fluctuations in product flows' quantity and quality. This results in insufficient utilization of manufacturing/remanufacturing resources (e.g., labor and equipment) and high investment costs for CMSs, which hinder proper reuse and recycling of post-use products. The objective of this study is to propose a strategic decision-making method for sharing resources among multiple CMSs to reduce the cost of product reuse and recycling.

    Methods

    We first discuss the benefits and difficulties of sharing production resources among multiple CMSs. Then, a transferability benefit index (TBI) is introduced to help identify the most promising resources to be shared among multiple systems.

    Results

    A simplified example calculation is provided as an illustration of the method. Two disassembly systems with the similar structure are considered as a case study. As a result, we successfully applied the index to determine the most promising resources in a case study.

    Conclusions

    We find that TBI is useful because it provides a simple and easily understandable decision criterion for identifying the resources to be transferred and shared among multiple CMSs to reduce the cost for reuse and recycling of used products. TBI also screens outs the promising resources which should be redesigned and modified before sharing among multiple CMSs. Development of practical redesign methods and modification guidelines for these resources will be included in our future work of this study.

    Original languageEnglish
    Article number5
    Number of pages8
    JournalJournal of Remanufacturing
    Volume1
    Issue number1
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed

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