系统仿真学报 ›› 2022, Vol. 34 ›› Issue (4): 901-909.doi: 10.16182/j.issn1004731x.joss.20-0845

• 国民经济仿真 • 上一篇    下一篇

无标度物流网络中延误扩散临界条件的仿真研究

姚红光(), 肖恢翚, 张航   

  1. 上海工程技术大学,上海 201620
  • 收稿日期:2020-11-02 修回日期:2021-03-16 出版日期:2022-04-30 发布日期:2022-04-19
  • 作者简介:姚红光(1978-),男,博士,副教授,研究方向为交通运输与物流管理。E-mail:yhg1yhg@sina.com
  • 基金资助:
    国家社会科学基金(16BGL014)

Simulation on Critical Conditions of Delay Diffusion in Scale-free Logistics Network

Hongguang Yao(), Huihui Xiao, Hang Zhang   

  1. Shanghai University of Engineering Science, Shanghai 201620, China
  • Received:2020-11-02 Revised:2021-03-16 Online:2022-04-30 Published:2022-04-19

摘要:

针对无标度物流网络延误扩散发生的临界条件,应用平均场理论,建立以延误节点密度为标度的常微分方程,求解延误扩散的临界条件;通过设计物流网络中延误扩散仿真系统,生成具有无标度属性的虚拟网络,对临界条件进行了仿真验证。研究结果表明:无标度物流网络中存在少数具有较高度值的关键节点,一旦这些节点出现服务障碍,将导致更大范围内的延误和更快的延误扩散速率。

关键词: 无标度物流网络, 延误扩散, 临界条件, 仿真检验

Abstract:

Aiming at the critical condition of delay diffusion in scale-free logistics network, a susceptible-infected-susceptible(SIS) model based on the density of delay nodes is established by mean field theory, and the critical value is solved. By designing the delay diffusion simulation system in logistics network, a virtual network with scale-free attribute is generated, and the critical condition is verified by simulation. The results show that there are a few key nodes with high value in scale-free logistics network. Once these nodes have service obstades, compared with other nodes, it will lead to a larger range of delay and faster delay diffusion rate.

Key words: scale-free logistics network, delay diffusion, critical condition, simulation verification

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