基于货架寿命的乳制品配送车辆路径优化研究

目的 基于货架寿命对库存和配送进行优化研究，降低冷链过程中的乳制品损耗，保证乳制品的质量，降低企业成本，提高消费者的满意度。方法 考虑到货架寿命对配送的影响，在研究货架寿命的基础上，建立乳制品货损率与货架寿命的关系式。在时间窗约束下，以总成本最小为目标，分别构建未考虑货架寿命的配送车辆路径优化模型和考虑货架寿命的配送车辆路径优化模型，并通过改进遗传算法对2种模型进行求解分析。结果 对比2种模型的最优结果，发现在1个配送周期内，基于货架寿命配送的总成本比不考虑货架寿命的运输总成本低3.71%。结论 该研究在一定程度上可以为物流企业减少配送成本，提高企业的经济效益。

Path Optimization of Dairy Distribution Vehicle Based on Shelf Life

The paper aims to optimize inventory and distribution based on shelf life, reduce loss of dairy product during cold chain, ensure quality of dairy product, reduce cost of enterprise, and increase consumer satisfaction. Considering the impact of shelf life on distribution, based on research of shelf life, the relationship between loss rate and shelf life of dairy product was established. Under the constraint of time window, with the minimum total cost as the goal, a distribution vehicle path optimization model without considering shelf life and a distribution vehicle path optimization model considering shelf life were constructed respectively, and the two models were solved by improved genetic algorithm. Comparing the optimal results of the two models, it was found that the total cost of distribution based on shelf life was reduced by 3.71% in a distribution cycle compared to the total cost of transportation without considering shelf life. To a certain extent, this research can reduce distribution costs and improve economic efficiency for logistics enterprises.