A Study on Modeling of Market Circulation of Production Facility Modules by Considering Diversity of Value

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  • WU Chunyan
    Department of Mechanical Engineering, Graduate School of Engineering, Kobe University
  • TSUMAYA Akira
    Department of Mechanical Engineering, Graduate School of Engineering, Kobe University

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From the perspective of the sustainable manufacturing industry, considering the renovation of manufacturing facilities that are physically and functionally usable is important. This study is based on the hypothesis that the value of the manufacturing facilities is perceived differently among individual users due to differences in production strategies. Therefore, we believe that using a production system composed of a core platform and add-on modules is beneficial, and the long-time use of a core platform can be realized by replacing the add-on modules. Here, the reuse of production facility modules is an important issue. This study proposes a market circulation model of modules considering the diversity of value caused by users' different production plans/strategies. First, a user profile is defined to express the sense of value of each user, such as the user's skills (specializes in certain productions), basic policy on product strategy, preferences, and behavioral principle. Second, to realize a production plan/strategy, a method to derive the user's satisfaction is proposed by comparing the current production system in use with an aspiring production system. When the evaluation of satisfaction is lower than the tolerance level, requirements for changing the current production system can also be calculated. Third, the preference of module trading is modeled as a combinatorial optimization problem of the modules also based on the evaluation of satisfaction. Finally, a multi-agent simulator is constructed consisting of plural user agents with different production strategies in order to evaluate sustainability of entire production facilities in the flower cultivation industry. From the results of the case study, the feasibility of sustainability evaluation is shown.

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