Research On High-speed Railway Route Alignment Safety And Comfort Evaluation And Three-dimensional Simulation

Abstract:In order to enrich the method of location design, on the phase of location design we evaluation the route alignment by safety and comfort evaluation theory, and then the route alignment was optimized to meet the safety and comfort requirements. Firstly, the real-time data of high-speed railway running simulation calculated was introduced into the process of vehicle-track dynamic response calculation, that the vehicle-track dynamic simulation can reflect the actual operation better. Secondly, based on safety index and comfort index we evaluated the route alignment, and then we optimized the alignment according to the evaluation results, until we obtained the optimal solution. Finally, a high-speed railway alignment comfort evaluation system was developed out. This article main research content is:1. Train running simulation technology was applied, the designated route alignment for traction calculation, realized the running simulation, solving the V-S curve; the result of running simulation was introduced into the process of vehicle-track dynamic response calculation, that the vehicle-track dynamic simulation can reflect the actual operation better, solving the vibration acceleration.2. Selected the safety index(derailment coefficient wheel-rail lateral force、wheel-rail vertical force) and comfort index(ride index、comfort index) as the route alignment evaluation index, and using piecewise evaluation method realized the safety and comfort evaluation of route alignment.3. Developed three-dimensional system real-time display module based on the safety and comfort evaluation results, the evaluation results more intuitive and clear, to aid route alignment design.4. A high-speed railway alignment comfort evaluation system was developed out based on VS.NET environment., ObjectARX2006and Matlab Math Library, which is stable, reliable and has good practical value...