Abstract: Faced with the customer demand supplied by multiple factories, enterprises will build distribution centers between factories and customers to facilitate order distribution. Considering that such a three-level supply network contains multiple transportation paths, and each path has the risk of transportation interruption, the transportation reliability of the whole supply network will face challenges. In order to alleviate the impact of transportation disruption on order distribution, it is necessary to study the integrated optimization of reliable location paths for three-level supply network with multi-source collaborative supply. Under the constraint of facilities (factory, distribution center), a new location-path model is proposed with the goal of the operation cost and the reliability of the transportation. Non-dominated Sorting Genetic Algorithm with elitist strategy (NSGA-II) is designed to solve the model. Taking the three-level supply network centered on Beijing and Tianjin as an example, the optimal facilities location and distribution scheme are determined to verify the validity of the model. Sensitivity analysis of the probability of transportation interruption shows that the overall small increase in the candidate path interruption probability will greatly reduce the transportation reliability of the whole network, and the factory-to-distribution center path is the decisive path for a significant reduction in reliability.

Key words: collaborative supply, location-path, transportation interruption, reliability

摘要： 针对由多个工厂协同供应的客户需求,企业会在工厂和客户之间构建配送中心以方便订单配送。考虑到这样的三级供应网包含多条运输路径,且每条路径都存在运输中断风险,整个供应网的运输可靠性将面临挑战。为了缓解运输中断对订单配送的影响,有必要研究多源协同供应的三级供应网可靠选址路径集成优化问题。在有限的设施(工厂、配送中心)能力下,提出了运作成本和运输可靠性的两目标选址路径模型,并设计NSGA-II求解模型。以北京和天津为中心构建三级供应网作为算例,确定最优设施位置和配送方案,验证模型的有效性。对运输中断概率进行灵敏度分析表明,整体小幅度增加候选路径中断概率会大幅度降低整个网络的运输可靠性,且工厂到配送中心的路径是影响可靠性大幅降低的决定路径。

关键词: 协同供应, 选址-路径, 运输中断, 可靠性