天津港航道通过能力仿真研究

发布时间：2018-01-31 15:51

本文关键词： 计算机仿真 Simio 航道通过能力天津港　出处：《天津大学》2014年硕士论文　论文类型：学位论文

【摘要】：港口航道通过能力是反映航道适航程度的客观指标，是港口服务水平以及核心竞争力的重要体现。当前，航道通过能力已经成为制约大型港口经济发展的瓶颈之一，因此确定航道通过能力计算分析方法具有重要意义。港口航行作业系统是典型的离散事件系统，用传统数学分析方法很难真实地反映港口运营过程中各要素的随机动态变化。计算机仿真技术为研究这类随机、动态、复杂系统问题提供了有效方法。仿真过程通过修改和调整模型参数可以重复试验，并可实时观察修改带来的影响。本文采用Simio仿真软件进行建模，以“面向对象”的建模思维取代“面向过程”和“面向事件”的传统建模方式，在一定程度上简化了建模过程，并且在标准对象库和标准过程的基础上，通过修改对象属性、为对象增减过程，得到具有特定行为的对象。在对港口航行作业系统进行分析的基础上，，基于Simio仿真平台建立了可视化的港口航行作业系统仿真模型。用天津港2004年的实际资料验证模型的可靠性；在此基础上，针对天津港2011年实际资料，通过修改仿真参数，分别讨论了不同通航方式（双向航道和复式航道）、船舶进港优先度以及装卸效率条件下，船流密度对通过航道货物量、港口服务水平AWT/AST、AWT的影响。为真实、客观预报港口航道通过能力提供了一种新方法。
[Abstract]:Port waterway capacity is an objective index to reflect the navigable degree of waterway, and it is an important embodiment of port service level and core competitiveness. Waterway passing capacity has become one of the bottlenecks restricting the economic development of large ports, so it is of great significance to determine the calculation and analysis method of channel passing capacity. Port navigation operation system is a typical discrete event system. It is very difficult to reflect the random dynamic change of every element in the process of port operation by using the traditional mathematical analysis method. The computer simulation technology is used to study this kind of random and dynamic. Complex system problems provide an effective method. By modifying and adjusting the parameters of the model, the simulation process can repeat the experiment and observe the effect of the modification in real time. In this paper, Simio simulation software is used to model, and the traditional modeling method of "process-oriented" and "event-oriented" is replaced by Object-Oriented Modeling thinking, which simplifies the modeling process to a certain extent. And on the basis of the standard object library and standard process, by modifying the object attributes, the object with specific behavior can be obtained by modifying the object attributes. On the basis of the analysis of the port navigation operation system. A visual simulation model of port navigation system is established based on Simio simulation platform. The reliability of the model is verified by the actual data of Tianjin Port in 2004. On this basis, according to the actual data of Tianjin Port in 2011, by modifying the simulation parameters, the different navigation modes (two-way channel and duplex channel, ship entry priority and loading and unloading efficiency) are discussed respectively. The influence of ship flow density on the cargo volume and port service level AWT-AST AWT provides a new method for real and objective prediction of port waterway transit capacity.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U612

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