High-speed railway train running real-time simulation test system under earthquake action

Abstract

The utility model discloses a high-speed railway train running real-time simulation test system under earthquake action, which comprises a driving device including a driving wheel, a motor, a differential device and a fixing device, an earthquake simulation vibration table, a vehicle model and a numerical model of a train running line, and the system is characterized in that based on existing earthquake simulation vibration table equipment and a real-time hybrid test technology, a line numerical model calculates bridge and track deformation at the current time step in real time, earthquake strong action is transmitted to a vehicle model through an earthquake simulation vibration table, the rotating speed of wheels is calculated according to the real-time vehicle speed, and a driving devicedrives the wheels of the vehicle model to rotate backwards; and the situation that the vehicle moves forwards on the track is simulated, the acting force of the vehicle model on the driving wheels ismeasured and the acting force is applied to the line numerical model to perform the operation of the next time step, and the process is repeated until the test working condition is finished. The whole test system provides an economical and convenient construction mode and a safe and reliable technical guarantee for the real-time simulation test research of the high-speed railway train running under the earthquake.

Description

technical field [0001] This patent relates to the technical field of high-speed railway line driving simulation devices, in particular to a real-time simulation test system for high-speed railway train running under earthquake action. Background technique [0002] In recent years, my country's high-speed railway industry has developed rapidly, ranking first in the world in terms of total mileage and operating speed. my country has a vast territory, complex geological conditions, and frequent natural disasters such as earthquakes, all of which pose threats to the operation of high-speed railways. my country is located in the circum-Pacific seismic zone, which is an earthquake-prone country. Several earthquakes have caused immeasurable losses to people's lives and property. It is inevitable that high-speed trains will encounter the possibility of earthquakes during operation, and research on the safe operation of high-speed trains and vehicle-rail coupling vibration under the...

AI Technical Summary

Problems solved by technology

(2) The railway test line cannot reproduce the driving test conditions under the earthquake, and the rolling vibration table can reproduce the pre-designed test road spectrum conditions under the earthquake, and it is impossible to consider the dynamic effect of the reaction force of the vehicle on the track on the line; combined The existing seismic simulation shaking table and real-time hybrid test technology input the seismic action into the numerical model of the line part, and the numerical model of the line part and the high-speed railway train test model perform data interaction in real time during the test process, ensuring that the simulation of the driving process under the earthquake is consistent with reality Consistency

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