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1. Study on the Three-dimensional Loading Optimization Problem of Freight Transshipment | |||
Bu Lei,Yin Chuanzhong | |||
Transportation Engineering 15 December 2010 | |||
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Abstract:In this paper, the three-dimensional bin packing optimization for freight transshipment in multimodal transportation is considered. The problem is to load a set of different size regular goods with given quantities in containers at the container transfer station, and the objective is to minimize the number of containers needed. The authors set up the mathematic model considering the general characteristic of container multi-modal transportation, such as the constraints of load capacity, loading mass, direction and sequence of placement, and loading stability. At the same time, the authors also introduce the parameter of freight transportation time window, which is decided by freight train formation plan and transit deadline of goods. The authors put out an immune algorithm for the problem to enforce constringency. In this algorithm, effective antibody coding is designed in view of constraints of load capacity, loading mass, direction and sequence of placement, and affinity function is designed in view of constraints of loading stability and freight transportation time window. Computer simulation shows the efficiency and validity of the model and algorithm. | |||
TO cite this article:Bu Lei,Yin Chuanzhong. Study on the Three-dimensional Loading Optimization Problem of Freight Transshipment[OL].[15 December 2010] http://en.paper.edu.cn/en_releasepaper/content/4397536 |
2. Research on the Loading Problem of Piece Goods in Container Basis of Loading Time Window | |||
Lei Bu,Chuanzhong Yin | |||
Transportation Engineering 19 March 2010 | |||
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Abstract:This paper studies the loading problem of piece goods in container basis of loading time window. From the view of making the best of container, the author introduces loading time window, which considering the plan of train organizing into groups and deadline of freight transportation, and establishes optimizing mathematics model based on certain hypothesis and restriction. Genetic algorithm is constructed to get reasonable loading scheme, and instance calculation indicates that the model and algorithms is effective and feasible. | |||
TO cite this article:Lei Bu,Chuanzhong Yin. Research on the Loading Problem of Piece Goods in Container Basis of Loading Time Window[OL].[19 March 2010] http://en.paper.edu.cn/en_releasepaper/content/40899 |
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