低碳理念下基于超网络的物流企业车辆资源合作研究

Supernetwork-based vehicles cooperation optimization among logistics enterprises under low-carbon concept

摘要:

不同物流企业在运输服务中实施车辆资源的共享合作，是实现降耗节能减排的一种有效方式。构造一个以不同类型车辆数量为网络流、面向所服务的“生产商—零售商”两层级车辆资源合作超网络结构，建立各物流企业同时满足运营利润最高和碳排放量最低的多目标优化模型，利用变分不等式理论求解整个超网络达到最优均衡状态时的车辆配置方案。最后，以A和B为例，对两整车物流企业选择车辆资源合作的共同配送模式进行可行性分析，并通过数值仿真讨论碳税、车辆合作使用率等参数对物流企业车辆合作优化决策的重要影响。

Abstract:

Vehicles cooperation among different transport enterprises is an effective way for reducing consumption and saving energy. This paper constructs a two-tiered cooperative vehicle service supernetwork consisting of manufacturers and retailers, where the network flows are the amount of vehicles in different types. Based on this supernetwork, a multi-objective optimization model for different logistics enterprises is developed to maximize profit and minimize carbon emission, and then is transformed into the equivalent variational inequality form for solving the optimal vehicles assignment problem. Finally, taking A and B as example corporations, feasibility analysis is implemented to verify under what conditions should choose the joint distribution mode of vehicles cooperation. Moreover, numerical simulation is conducted to demonstrate the important impacts of key parameters including the carbon tax rate and the utilization of cooperative vehicles.