Regarding the optimization problem of multi-period resilient supply chain networks under disruptions from both supply and demand sides, a supply chain network model considering both prevention and recovery strategies was established, so as to optimize the operational cost of supply chain network and improve overall resilience. Based on the decision-maker’s risk-averse attitude, we proposed a decision-scenario-dependent probability formula, with the aim to handle the full range of disruption scenarios affecting actual activation nodes (suppliers and manufacturers). Building on this, we then considered a comprehensive response strategy involving backup suppliers, manufacturer capacity recovery, additional manufacturing capacity, and manufacturer protection systems. This led to the construction of an endogenous stochastic non-convex mixed-integer nonlinear model aimed at minimizing costs. Within this model, the cooling rate of the original simulated annealing algorithm was dynamically adjusted, and a multi-chain information-sharing and global optimal updating mechanism was applied to improve the algorithm’s convergence speed and optimization ability. We conducted a case study using the improved simulated annealing algorithm. The results demonstrated that the proposed model effectively reduces the total operational cost of the supply chain network under disruptions, identifies the optimal combination of prevention and recovery investments, enhances supply chain network resilience, and validates the necessity of combining multiple resilience strategies.
情景简化是通过依赖第一阶段决策的情景概率来实现的。只有当中断事件(通过参数Ditk 和Dstk 建模)影响开放的制造商或选定的主要供应商的运营时,才会将该情景纳入最终的情景集合。(40)式表示在情景中发生的中断事件总数,而(41)式则表示影响开放的制造商或选定的主要供应商的中断事件数量。(42)式定义了情景权重,其中中断事件较少的情景比中断事件较多的情景具有更高的权重,且中断事件发生的概率较低,相应权重也较小。根据(42)式,那些只涉及非开放制造商或非选定供应商(即ND k ≠NAD k )中断的情景,其权重为零,因此这些情景不会包含在考虑的集合中。最后,(43)式定义了情景概率。
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