Time-varying load redistribution method for cascade failure of logistics network based on load capacity nonlinear model

A nonlinear model and logistics network technology, applied in the field of logistics network cascading failure time-varying load redistribution based on the nonlinear model of load capacity, can solve problems such as differences, achieve low possibility, small failure again, and invulnerability strong effect

Inactive Publication Date: 2019-01-15
JILIN UNIV
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Problems solved by technology

[0007] The second object of the present invention is to use the nonlinear load capacity cascading failure model to define the load capacity relationship of the logistics network, so as to solve the problem of the

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  • Time-varying load redistribution method for cascade failure of logistics network based on load capacity nonlinear model
  • Time-varying load redistribution method for cascade failure of logistics network based on load capacity nonlinear model
  • Time-varying load redistribution method for cascade failure of logistics network based on load capacity nonlinear model

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Embodiment Construction

[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0045] Such as 1, figure 2 As shown, the existing logistics network technology uses the linear load capacity model to analyze the logistics network. However, the load capacity of the real logistics network is characterized by a nonlinear relationship. figure 1 It is the relationship between the storage capacity and the actual demand of all logistics nodes composed of logistics distribution centers and warehouses in the logistics transportation network of the products of a Fortune 500 company in the world; figure 2 It is the relationship between the capacity of a certain express service network hub station and the actual flow; from these actual networks, it can be seen that the relationship between the load and capacity of the logistics network is a nonlinear relationship. ...

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Abstract

The invention discloses a time-varying load redistribution method for the cascade failure of a logistics network based on a load capacity nonlinear model. The method comprises the steps of 1, establishing a logistics network topological structure model, and determining the initial load and the node capacity of each logistics network node; 2, selecting any node in that topology structure model of the logistics network to invalidate the any node; 3, aft any node fails, carry out load redistribution on that node after the cascade failure of the logistics network according to a load redistributionstrategy with time-varying consideration; Step 4, when the redistributed neighboring node reaches the failure condition, the step 3 is carried out again, the cascading failure redistribution strategyis carried out to redistribute until all the distributed nodes are no longer invalidated, and when the redistributed neighboring node reaches the effective condition, the cascading failure ends.

Description

technical field [0001] The invention relates to the technical field of logistics network invulnerability, in particular to a time-varying load redistribution method for logistics network cascading failures based on a nonlinear model of load capacity. Background technique [0002] As people rely more and more on the logistics industry, logistics technology has transformed from basic services to smart logistics and big data analysis. The logistics system can be regarded as a logistics network composed of logistics nodes and various lines connecting logistics nodes, and the research on the invulnerability of logistics networks based on complex network theory has gradually attracted people's attention and made some progress in recent years. [0003] At present, in the field of logistics network research, the research on the network model of logistics network based on complex network theory all defines the capacity and initial load as a linear relationship, that is, the linear mo...

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Application Information

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IPC IPC(8): H04L12/24
CPCH04L41/14H04L41/145
Inventor 杨悦孙宝凤王少华杨雪亢军媄任欣欣王帅
Owner JILIN UNIV
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