Research Of Interaction Between Pantograph And Overhead Contact On Existing And Running Bullet Train' Railway

With the continuous development of high-speed railway, high-speed train-related technology has an unprecedented development, but new problems arise in the development process. Currently, transformation of the existing railway line speed, full utilization of the potential of existing lines, is the world's railway development of common requirements and trends.Overhead contact line which is in the process of bullet train traffic is an important upport system, the transformation of overhead contact line of the existing lines has become the key part. Currently, there are still some conditions of the existing lines meet the speed overhead emu pass slowly. Therefore, related people must improve low-speed section of the emu speed in order to achieve improved the bullet train' targets speed goal with plan and orderly, combined with technological improvements and related construction projects.In this paper, on the basis of finite element method, use ANSYS software to Beijing to Datong section of Beijing—Harbin railway line overhead contact line Bridging the actual situation, for example, to establish a simple chain suspension overhead contact line finite element model and simulation analysis and calculation. By changing four overhead contact line larger set of parameters, overhead contact line simulation analysis, and uneven combination of elastic overhead contact line calculation, overhead contact line.Analysis of performance changes, and ultimately concluded that:change above four parameters can effectively improve the quality of the contact line.Beijing Railway Station to Beijing in the range of contact line for the East Line Station renovation project, the conclusions of our simulation base on the guidance, overhead contact line is slightly changed, and the field data measure, the results show that:change above four parameters can effectively improve the quality of the contact line. The simulation analysis and field measurement of the conclusions have been organized into rationalization proposals submitted to the Beijing Railway Station supply management, to recommend its application to the Beijing-Harbin line, Beijing-Guangzhou line of the existing lines in the low-speed section of the renovation project.This type of simple chain of suspension overhead contact system simulation analysis is still not perfect, the next job and to continuously improve the process of research, the research results will also strengthen gradually popularized to other existing lines of reconstruction project overhead contact line.