交通运输系统工程与信息 ›› 2023, Vol. 23 ›› Issue (3): 204-213.DOI: 10.16097/j.cnki.1009-6744.2023.03.022

• 系统工程理论与方法 • 上一篇    下一篇

冷链零担物流前端集货至末端配送全链条优化模型

谢如鹤*1,何佳雯1,邹毅峰1,李庆庭1,刘子玲1,廖晶2   

  1. 1.广州大学,管理学院,广州510006;2.帕多瓦大学,管理工程学院,帕多瓦35131,意大利
  • 收稿日期:2023-02-23 修回日期:2023-03-12 接受日期:2023-03-29 出版日期:2023-06-25 发布日期:2023-06-23
  • 作者简介:谢如鹤(1963-),男,湖南娄底人,教授,博士
  • 基金资助:
    国家社会科学基金 (17BJY102);广东省农产品保鲜物流共性关键技术研发创新团队 (2022KJ145).

An Optimization Model of Whole Chain from Front-end Collection to Terminal Distribution of Cold Chain Less-than-truckload Logistics

XIE Ru-he*1, HE Jia-wen1, ZOU Yi-feng1, LI Qing-ting1, LIU Zi-ling1, LIAO Jing2   

  1. 1. School of Management, Guangzhou University, Guangzhou 510006, China; 2. Department of Engineering and Management, University of Padova, Padova 35131, Italy
  • Received:2023-02-23 Revised:2023-03-12 Accepted:2023-03-29 Online:2023-06-25 Published:2023-06-23
  • Supported by:
    National Social Science Foundation of China(17BJY102);Agricultural Products Freshness Logistics Common Key Technology R&D Innovation Team of GuangdongProvince (2022KJ145)

摘要: 针对冷链零担物流两端作业复杂、环节衔接不畅、冷链流通率低等问题,本文建立两阶段优化模型,第1阶段构建最低平均离散度模型寻找最优集货点,第2阶段构建干线冷链运输至末端冷链配送全链条总成本最低的路径优化模型。结合Z公司算例,运用K-means聚类算法与遗传算法进行仿真求解,验证模型的有效性。实验结果得到的最优集货点使集货平均离散度降低了18.8%,供应商相对于集货点分布更加聚集,从而提高前端集货效率;优化后的配送方案时间窗惩罚成本为0,有助于提高客户满意度;4种运输情景中,采取全程冷链的总成本最低,相比全程常温总成本降低了69.4%。结果表明,根据前端供应商的位置与集货量科学选择集货点,且全程保持适宜的冷链条件可有效优化物流企业冷链零担物流的全链条成本。

关键词: 公路运输, 冷链零担物流, K-means聚类算法, 遗传算法, 优化模型

Abstract: To address the complex operations and poor connection of the cold chain less- than- truckload logistics, as well as the low circulation rate, a two-stage optimization model was developed. In the first stage, the Minimum Average Dispersion model was constructed to identify the optimal cargo collection points. In the second stage, a path optimization model was established to minimize the overall cost of cold chain transportation from the trunk to the end distribution. With a numerical experiment based on the Z company, the K-means clustering algorithm and the genetic algorithm are used for the simulation and verification of the model's effectiveness. The optimal cargo collection points obtained from the experimental results reduced the average dispersion by 18.8%, making the distribution of suppliers more concentrated than cargo collection points, thereby improving the efficiency of front-end cargo collection. The optimized distribution plan had zero time window penalty cost, which improves customer satisfaction. Among the four transportation scenarios, the total cost of full cold chain transportation was the lowest, with a 69.4% reduction in total cost compared to room temperature transportation. These results indicate that selecting cargo collection points based on the location of front-end suppliers and the amount of cargo, as well as maintaining suitable cold chain conditions throughout the transportation process, can effectively optimize the overall cost of cold chain less-than-truckload logistics for logistics companies.

Key words: highway transportation, cold chain less-than-truckload logistics, K-means clustering algorithm, genetic algorithm, optimization model

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