基于滚装的海陆一体化运输优化问题研究
发布时间：2019-03-13 10:30
【摘要】：海陆一体化运输是从海、陆空间角度出发,在现有海陆运输网络的基础上实现海、陆运输的一体化衔接。为了满足可持续发展的需求,依靠单纯的海上运输系统或者陆上运输系统已无法达到最终目的,海陆联动开发的海陆一体化运输已成为了当前及未来运输的主要发展趋势。本文从海陆一体化的角度出发,分析研究海陆一体化运输系统,并分别对海上运输系统、陆上运输系统、海陆衔接典型环节进行优化。针对海上运输系统,以滚装船配载这一典型环节优化为研究对象,建立了基于成品车多装货港、多卸货港的多阶段配载模型。根据该模型的特点,设计了遗传算法进行求解;并通过大量的数值例仿真实验,验证了算法的有效性。将使用遗传算法求解结果与基于现实调度规则的结果进行对比,进一步验证了算法的效率和鲁棒性。开发了滚装船舶配载信息管理系统,提高了装卸效率和准确性,为滚装船舶的安全性提供有效的支持。针对陆上运输系统,以共同配送作业优化这一典型环节优化为研究对象,建立了共同配送模式下货量分配、路径优化与成本分摊数学模型。利用改进的遗传算法对所提出问题进行求解。算例实验结果表明,在共同配送模式下,无论是联盟总体还是各个配送中心个体,其配送总成本都有很大幅度的节省。针对海陆衔接运输系统,以整车物流路径优化这一典型环节优化为研究对象,提出共享车辆与共享分拨中心(VDC)两种资源共享资源模式,并构建资源共享模式下以总费用最小为目标函数的整车物流路径优化数学模型。设计结合节约里程法和扫描法的遗传算法对所提出的问题进行求解。代入实际数据进行计算,结果表明使用资源共享的方法能够减少大约30%的运输费用;并对不同公路重载运输单位运输成本下最优成本的变化情况进行了比较分析,结果认为:单位运输成本越大,采用传统单独运输的成本越大,越应采用共享运输模式。但若公路重载运输单位成本与铁路和水路运输的成本越接近,则共享模式的优势越弱,成本节省率也就越低。
[Abstract]:Land-sea integrated transport is to realize the integration of sea and land transportation from the point of view of sea and land space and on the basis of the existing land-sea transport network. In order to meet the demand of sustainable development, it is impossible to achieve the ultimate goal by simply sea transportation system or land transportation system. Sea-land integrated transportation has become the main development trend of transportation at present and in the future. From the point of view of land-sea integration, this paper analyzes and studies the sea-land integration transportation system, and optimizes the sea transportation system, land transportation system and the typical link of land-sea connection. Aiming at the marine transportation system, a multi-stage loading model based on multi-loading port and multi-unloading port of finished goods vehicle is established based on the typical link optimization of roll-on-roll-off ship loading. According to the characteristics of the model, a genetic algorithm is designed to solve the problem, and the validity of the algorithm is verified by a large number of numerical simulation experiments. The results of genetic algorithm are compared with those based on real scheduling rules, and the efficiency and robustness of the algorithm are further verified. The stowage information management system of ro-ro ships is developed, which improves the efficiency and accuracy of loading and unloading, and provides effective support for the safety of ro-ro ships. Aiming at the land transportation system, a mathematical model of quantity distribution, route optimization and cost allocation under the common distribution mode is established, which is based on the optimization of the typical link of the common distribution operation optimization. The improved genetic algorithm is used to solve the proposed problem. The results of numerical examples show that the total cost of distribution is greatly saved both in alliance and in each distribution center under the mode of common distribution. Aiming at the land-sea transportation system, taking the optimization of vehicle logistics route as the research object, this paper puts forward two kinds of resource sharing modes: shared vehicle and shared distribution center (VDC), and puts forward two kinds of resource sharing mode, which are shared vehicle and shared distribution center. The mathematical model of vehicle logistics path optimization with the minimum total cost as the objective function under the resource sharing mode is constructed. A genetic algorithm based on economizing odometer method and scanning method is designed to solve the proposed problem. The results show that the method of resource sharing can reduce the transportation cost by about 30%. The results show that the larger the unit transportation cost is, the greater the cost of traditional single transport is, and the more the shared transport mode should be adopted. However, if the unit cost of highway heavy haul transportation is closer to the cost of railway and waterway transportation, the advantage of sharing mode is weaker and the cost saving rate is lower.
【学位授予单位】：大连海事大学
【学位级别】：博士
【学位授予年份】：2017
【分类号】：U116
本文编号：2439310
[Abstract]:Land-sea integrated transport is to realize the integration of sea and land transportation from the point of view of sea and land space and on the basis of the existing land-sea transport network. In order to meet the demand of sustainable development, it is impossible to achieve the ultimate goal by simply sea transportation system or land transportation system. Sea-land integrated transportation has become the main development trend of transportation at present and in the future. From the point of view of land-sea integration, this paper analyzes and studies the sea-land integration transportation system, and optimizes the sea transportation system, land transportation system and the typical link of land-sea connection. Aiming at the marine transportation system, a multi-stage loading model based on multi-loading port and multi-unloading port of finished goods vehicle is established based on the typical link optimization of roll-on-roll-off ship loading. According to the characteristics of the model, a genetic algorithm is designed to solve the problem, and the validity of the algorithm is verified by a large number of numerical simulation experiments. The results of genetic algorithm are compared with those based on real scheduling rules, and the efficiency and robustness of the algorithm are further verified. The stowage information management system of ro-ro ships is developed, which improves the efficiency and accuracy of loading and unloading, and provides effective support for the safety of ro-ro ships. Aiming at the land transportation system, a mathematical model of quantity distribution, route optimization and cost allocation under the common distribution mode is established, which is based on the optimization of the typical link of the common distribution operation optimization. The improved genetic algorithm is used to solve the proposed problem. The results of numerical examples show that the total cost of distribution is greatly saved both in alliance and in each distribution center under the mode of common distribution. Aiming at the land-sea transportation system, taking the optimization of vehicle logistics route as the research object, this paper puts forward two kinds of resource sharing modes: shared vehicle and shared distribution center (VDC), and puts forward two kinds of resource sharing mode, which are shared vehicle and shared distribution center. The mathematical model of vehicle logistics path optimization with the minimum total cost as the objective function under the resource sharing mode is constructed. A genetic algorithm based on economizing odometer method and scanning method is designed to solve the proposed problem. The results show that the method of resource sharing can reduce the transportation cost by about 30%. The results show that the larger the unit transportation cost is, the greater the cost of traditional single transport is, and the more the shared transport mode should be adopted. However, if the unit cost of highway heavy haul transportation is closer to the cost of railway and waterway transportation, the advantage of sharing mode is weaker and the cost saving rate is lower.
【学位授予单位】：大连海事大学
【学位级别】：博士
【学位授予年份】：2017
【分类号】：U116
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