回字形自动化集装箱码头仿真建模与分析
- II -
Simulation Modeling and Analysis of Automated Container Terminal
with Hollow Track Layout
Abstract
Recent years, the increasing throughput of container port by year, and the growing size
of ships, the rising costs tend to rise and other factors to container, making terminal
transforms and upgrades towards intelligent and effective direction, in order to achieve
efficient operation of container port. The layout of container and terminal handling
technology is the key factors influencing the efficiency of the design in the practical
automated container terminal. In the actual situation, handling technology and layout should
rely on the actual situation when a terminal is designed, in order to achieve the comprehensive
utilization of port resources and transportation system, and to meet the high demand from the
port ship loading and unloading port. Therefore, it is very important for the future design and
implementation of a new automated terminal concept system to study the important
parameters and layout of the loading and unloading process.
Container Terminals with dual-rail transport Trolley and Hollow track layout (CTTH)
are novel concept. The paper designs a simulation model for which was developed with a
CTTH simulation system which is based on stochastic Petri nets. This model contains many
subsystems , including ship berthing subsystem, loading and unloading ship system, yard gate
linkage subsystem. This paper discusses the simulation modeling of ship arriving in ports,
multi - line back - shaped arrangement, bank operation, high - low - speed driving operation,
and puts forward the realization method of simulation .The paper designs container terminal
simulation system for double - track trolley and elevated traffic, and analyze the performance
of the new system, as well as the number of cars, speed, elevated traffic speed on the impact
of operating indicators. Experiments succeed in showing that the new system has higher
operating efficiency than the automatic rail gantry crane system.
What’s more, considering quay-crane equipment, yard layout and transport trolley
equipment, 25 layout simulation models for container terminals with dual-rail transport trolley
and hollow track layout were developed using Plant Simulation platform. The operational
efficiency and parameter effects of the new automated container terminal are analyzed with
the 25 developed simulation models. The simulation results show that proper quay-crane
equipment benefits the terminal service level and saves 8% average service time of ships, and
that proper yard depth and block width layout improves the average efficiency of quay-cranes
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