Method and device for detecting snaking motion instability of high speed train bogie

Abstract

The invention relates to a device for detecting snaking motion instability of a high speed train bogie, which is used for monitoring on-line whether snaking motion instability of the bogie appears during the travel of a high speed train. The device provided by the invention comprises a main controller system and a sub-detection system. The main controller system mainly comprises a man-machine interaction module, a GPS (global position system) module, a data analysis record module and a field bus control module. The sub-detection system mainly comprises a sensor module, a data acquisition module, a data analysis module, a field bus control module and a data storage module. A main controller and the sub-detection system are subjected to data communication through a field bus. The sub-detection system monitors the transverse vibration state of the bogie in real time to judge whether the snaking motion instability appears and transmits instability information to the main controller through a field bus; and the main controller completes analysis of the instability information, combines with the GPS module and a clock module to correctly provide time and space synchronizing information at the moment of the occurrence of instability, then gives out a warning signal and stores the fault information.

Description

technical field [0001] The invention relates to the field of electrical detection, in particular to a detection device for the instability detection of the bogie of a high-speed EMU in snaking motion. Background technique [0002] When the high-speed EMU is running on the line, it is required to have good lateral stability. In the range from low speed to the highest speed, no hunting instability is allowed. If severe hunting instability occurs, a large lateral wheel-rail force will be generated. , causing damage to the line, overheating or damage to the axle bearings, and even derailment accidents, which seriously affect the safety of operation. Therefore, the prevention of snaking instability is one of the issues that urgently need attention in the research of high-speed railway vehicles. The high-speed EMU bogie vibration test is to monitor whether the vibration parameters of the EMU bogie are within the safe range during operation. It analyzes the bogie by testing and re...

AI Technical Summary

Problems solved by technology

In China, the monitoring system used by the CRH-380A EMUs in my country is the Bogie Instability Detection Device (BIDS) produced by Japan’s Kawasaki Heavy Industries. This type of device has a very stable and sensitive test function and can accurately detect Bogie snaking instability phenomenon, but there are still some deficiencies: such as the lack of human-computer interaction interface, it is not easy to set up the system and check the records, and the data cannot be synchronized with the running status of the train in time and space, which is not conducive to making fault information further analysis

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