Research On The Simulation Of Container Terminals Production System And Layout Methods

As a new transport mode for grocery and bulk cargos, container transport has been the main mode to transport materials between nation and nation, area and area. The container transport in our country appears from the railage in the fifties of 20 century. With the actualization of economy system innovation and the opening to the world policy, the trade between our country and other nations grows quickly, and the container throughput keep a high velocity increase. Especially after we have joined the WTO, the container transport in our country faces tremendous develops space and challenge.In recent years, with the farther development of the container transport in our country's seaport container terminals, it is inevitable to rebuild the old seaport container terminals and sometimes we should change some bulk terminals into container terminals, and at the same time in some areas should build new seaport container terminals. For the complexities of container terminals system, it is very difficult for us to use the traditional method in design and layout the seaport container terminals. The computer simulations' merit makes it apply comprehensive in container terminals' design and layout.Firstly, the thesis analyses the constitute and characteristic of container terminals' production system and discuss the establishment and the imports and exports operation flow of the container terminals in details. The thesis also discusses the development of handling technology mode for container terminals. The development of computer simulation system realizes container terminals' production system through simplify some content of it.Secondly, the thesis discusses the modeling theory of container terminalsproduction system-queue network theory and analyses the application of thistheory in container terminals queue system. Based on this, the thesis discusses the main research work of the container terminals queue system. Then the author combines the queue network theory with container terminals queue systems, and discuss the steady state indications of the container terminals queue systems. According to the recurring networking theory, the thesis realizes to develop thesystem model of container terminals' production .Use the model to simulate the terminals operation can help to determine the rational terminal scale when the terminals' throughput is certain, to simulate ships handling process can help us to determine how to allocate and manage working machines of the container terminals.Thirdly, utilize witness software, the author accomplish numeric simulation of the whole container terminals production system and can realize planar computer dynamic simulation which can simulate the dynamic process of ships arrival /depart, load/unload container, truck convey and load/unload in container yard.At last, according to analyses the pick-up modeling indication in container terminals' production system, the thesis accomplish the research of how to determine the reasonable berth quantity of container terminals in a certain throughput. The thesis also realizes the study of how to arrange the attempter tactic in different ships interval and how to equip the handling machines in container terminals when the throughput is certain.