Line And Vehicle Dynamic Response And Linear Parameter Study Of Suburban Railway

ABSTRACT:Suburban railway transportation in our country is a relatively new mode of transportation, foreign suburban railway play a major role in the urban traffic function. Research about suitable for the development of China’s major cities suburban rail transportation system is very important. Suburban railway transportation is not used for traditional passenger dedicated line, mixed passenger railway and urban rail transit, its line parameter research is still a blank, we need to carry out special research on its circuit parameters.This paper studies the foreign big city suburban railway construction pattern and operation condition, according to our country city present development situation and prospects, discusses suited to China’s suburban railway development’s construction mode, speed, and vehicle design choice etc. Using a method for determining the parameters of traditional passenger dedicated line, mixed passenger railway and urban rail transit in China and abroad for reference, it proposes suburban railway transport line parameters and makes a series of dynamic simulation of the proposed line parameters. Then it evaluates and optimizes the proposed line parameters.The main research paper are as follows:1.This paper studies the development mode of foreign cities suburban railway according to China ’s specific conditions and current situation and prospects of urban development, it concludes the suburban railway construction mode suitable to development of China’s big cities,the maximum design speed and vehicle design choice.2. This paper references method for determining passenger dedicated line, mixed passenger railway and urban rail transit line parameters, proposes suburban rail transport line parameters.3. It is the first time that the paper establishes the SIMPACK linear-monorail transit model to do the dynamic simulation. The paper creates the method of establish the SIMPACK linear-monorail transit model and provides the ideas for further research.4.The paper does a series of dynamic simulation analysis in different curve radius, the length of transition curve by the maximum speed and in different speed by adverse conditions, and obtains the wheel/rail force and acceleration curve of the body, use the corresponding evaluation index to evaluate the safety and stability of the body, and optimizes the proposed line parameters.