Diagnosis method and device of abnormal vibration of maglev train passenger room

Abstract

The invention discloses a diagnosis method and device of abnormal vibration of a maglev train passenger room, and relates to a maglev train fault diagnosis technology. According to the diagnosis method and device, a plurality of points are selected on a same section or near the same section in a passenger room to serve as passenger room internal measuring points and excitation source measuring points, vertical vibration signals of the measuring points are synchronously collected, and then the vertical vibration signals of the passenger room internal measuring points are calculated and analyzedto determine whether abnormal vibration exists or not; when the abnormal vibration exists, a correlation coefficient of the vertical vibration signals of the passenger room internal measuring pointsand the excitation source measuring points is calculated to determine correlation between the two, and a source and a frequency of the abnormal vibration are determined; and according to the diagnosismethod, an abnormal state of the room can be effectively and quickly diagnosed, the abnormal vibration source and the vibration frequency are determined, a monitoring and diagnosis means is providedfor abnormal vibration of the passenger room, and meanwhile, support is provided for troubleshooting and elimination of the abnormal vibration.

Description

technical field [0001] The invention belongs to the fault diagnosis technology of maglev trains, in particular to a diagnosis method and device for abnormal vibration of passenger compartments of maglev trains. Background technique [0002] During the operation of the maglev train, the interior of the cabin will be affected by the vibration of the external excitation source. When the amplitude inside the passenger compartment is within a certain range, it will not affect the ride comfort of passengers, but when the amplitude inside the passenger compartment exceeds a certain range, it will make the ride uncomfortable. If the problem vibration fault cannot be corrected in time, it may even affect the stability of the suspension, causing the train to crash on the track and stop running. [0003] At present, there are no literature or technical application cases for the research on the abnormal vibration monitoring and fault diagnosis of the maglev train passenger compartment....

AI Technical Summary

Problems solved by technology

However, in actual operation, the problem of abnormal vibration in the passenger compartment of maglev trains does exist.

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