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为实现应急物资在供应点和受灾点之间的高效率调配,解决应急物资供应量有限、供应点分散和调配时间受约束的问题,应在三级应急物资调配系统的基础上,建立供需不平衡条件下的区域应急物资调配模型。基于非线性规划理论建立上述模型,以调配系统损失最小化为目标,用PSONIW算法对调配模型进行求解,并以地震灾害为研究背景设计仿真算例。结果表明,用所建模型能保证各受灾点的应急物资满足率高于公平系数;突发事件造成道路受损后,从供应点到受灾点的应急物资调配,应该充分考虑实际道路通行情况;模型求解结果与实际情况较为吻合。
In order to realize the efficient deployment of emergency supplies between the supply point and the disaster-hit point, and to solve the problem of limited supply of emergency supplies, diversification of supply points and time constraints of deployment, the supply and demand should be established on the basis of the three-level emergency supplies deployment system Regional emergency supplies deployment model under equilibrium conditions. Based on the nonlinear programming theory, the above model was established to minimize the system loss and the PSONIW algorithm was used to solve the deployment model. The earthquake disaster was taken as the research background to design the simulation example. The results show that the model can ensure that the emergency material satisfaction rate of all the affected areas is higher than the fairness coefficient. After the accident caused the road damage, the allocation of emergency supplies from the supply point to the affected area should give full consideration to the actual road access. The solution of the model is in good agreement with the actual situation.