Rescheduling in consideration of contracting out manufacturing to external companies for resilient supply chains

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  • レジリエントサプライチェーンのための外注を考慮した生産スケジュールの改善

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<p>Currently, supply chain networks are complicated and extended to worldwide with the globalization on business. When supply chain disruptions unexpectedly occur as a result of natural disaster or industrial accidents, suppliers sustain their business continuously. Supply chain resilience has been receiving an attention for the risk management. Supply chain resilience is known as the ability of adapting to a changing environment. Thus, the collaboration among supply chain members is important for improving supply chain resilience. In this paper, we propose a rescheduling strategy in order to recover the productivity after facing unscheduled disruptions. When suppliers need to interrupt manufacturing processes due to the disruptions and products cannot satisfy a given due date, suppliers can reduce tardiness and penalty charges for delays by contracting out the delayed products to external suppliers and restore production capacity to the state before the disruption occur. Furthermore, we propose a selection rule of delayed products for outsourcing. A prototype of supply chain simulation system is developed in order to evaluate the proposed strategy. We carry out computational experiments though the developed simulation system. The experimental results demonstrate that the proposed strategy can reduce tardiness and penalty charge of suppliers and detect the most suitable selection rule for outsourcing.</p>

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