Two-echelon Cold Chain Distribution Path Optimization Based on Harris Hawk Algorithm
The supply chain of agricultural products is an important manifestation of the modernization of agri-cultural product circulation.With the improvement of living standards,people's demand for fresh agricultural prod-ucts has gradually increased,the pressure of cold chain distribution of the agricultural products supply chains has continued to increase,and the packaging of agricultural products has also caused serious environmental pollution.Based on the consideration of secondary utilization of packaging,this paper constructs a two-level mathematical model of cold chain vehicle routing optimization for fresh agricultural products considering customer satisfaction by minimizing vehicle fixed cost,vehicle transportation cost and refrigeration cost.The model is solved by integrating the discrete Harris Hawk algorithm of variable neighborhood search mechanism,and the initial solution is generated by iterative greedy algorithm and random method,and then use the designed search operator to search for optimiza-tion.Through experimental simulation,the proposed algorithm is compared with other algorithms such as CPLEX to verify the feasibility,efficiency and stability of the improved Harris algorithm,which is of some significance to the study of the cold chain distribution path optimization problem for agricultural products under urban traffic restric-tions.
万方数据
维普
