模糊重心理论在铁路选线设计方案综合评价中的应用

发布时间：2018-02-13 00:31

本文关键词： 铁路选线计算机辅助设计模糊重心理论 Visual Basic　出处：《兰州交通大学》2012年硕士论文　论文类型：学位论文

【摘要】：铁路选线是铁路建设的重要组成部分,线路方案比选是铁路设计中一项建设性极强的工作,线路方案选择正确与否,直接关系到能否满足国家政治、经济和国防对本线路的要求,并且影响到线路设计的质量、工程造价、施工条件和运营效果。因此这项工作必须深入实际,根据不同设计阶段,做好调查研究,充分收集资料,有系统有计划地进行全面比选。本文旨在运用模糊重心理论进行铁路设计方案比选,建立线路方案比选系统。将模糊重心理论的方法与线路方案比选结合。论文首先通过对国内铁路选线的研究,归纳总结目前存在的问题,提出本文的研究意义和研究内容。其次,指出了方案评价的原则和意义,并将系统划分为技术、经济、环境、社会四个指标,并建立了系统总体结构图,对四项指标分别进行了详尽的阐述。第三,文章就现有的综合评价方法进行了探讨和分析,选择应用广泛的模糊综合评价方法作为铁路线路方案比选的理论基础,其中,重点介绍了本文采用的模糊重心理论的方法。第四,论文在介绍线路方案比选的基础知识后,对系统的功能设计和结构设计进行了综合分析,建立了结构功能设计图,并完成了建模。第五,本文引入工程实例对系统进行验证和检测。用线路方案比选系统在两个备选方案中选出最佳方案。通过对工程实例的验证,证明了系统功能具有一定的实用性。本系统基于面向对象的开发方法,以Visual Studio2003作为系统的开发平台,应用Visual Basic作为系统的开发语言,实现了数据直接输入与调用数据文件两个功能,计算结果准确,可视化界面较人性化,效率较高。铁路线路方案比选系统的开发,是一个庞大的系统工程,也是一个循序渐进的过程,既需要扎实的理论基础,又要有深厚的计算机编程功底。展望线路方案比选的未来发展,建立智能化的系统已成为不可阻挡的历史潮流。
[Abstract]:Railway route selection is an important part of railway construction, and line scheme comparison and selection is a constructive and extremely strong work in railway design. Whether the railway plan is correct or not is directly related to whether or not to meet the national politics. The requirements of economy and national defense for this line will affect the quality of the line design, project cost, construction conditions and operation results. Therefore, this work must go deep into the actual situation, according to the different design stages, do a good job of investigation and study, and collect sufficient data. A systematic and planned overall selection. The purpose of this paper is to use the theory of fuzzy gravity center to compare and select railway design schemes, and to set up a system for comparing and selecting railway line schemes. The method of fuzzy gravity center theory is combined with the selection of line schemes. Firstly, through the research on the selection of railway lines in China, This paper summarizes the existing problems, puts forward the research significance and research content of this paper. Secondly, it points out the principles and significance of program evaluation, and divides the system into four indicators: technology, economy, environment and society. The overall structure diagram of the system is established, and the four indexes are elaborated in detail. Thirdly, the article discusses and analyzes the existing comprehensive evaluation methods. The widely used fuzzy comprehensive evaluation method is chosen as the theoretical basis of railway line scheme comparison and selection. Among them, the method of fuzzy gravity center theory adopted in this paper is introduced emphatically. 4th, after introducing the basic knowledge of route scheme comparison and selection, The function design and structure design of the system are analyzed synthetically, the structure function design diagram is established, and the modeling is completed. 5th, In this paper, an engineering example is introduced to verify and detect the system. The optimal scheme is selected between two alternative schemes by comparing the circuit scheme with the system. Through the verification of engineering examples, it is proved that the function of the system has certain practicability. Based on the object-oriented development method, the system uses Visual Studio2003 as the development platform and Visual Basic as the development language of the system. The system realizes the functions of direct data input and data file transfer, and the calculation results are accurate. The visual interface is more humanized and more efficient. The development of railway line comparison and selection system is a huge system engineering and a gradual process. It needs not only a solid theoretical foundation, but also a solid foundation of computer programming. The establishment of intelligent systems has become an irresistible historical trend.
【学位授予单位】：兰州交通大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：U212.32

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