Anti-electromagnetic-interference train wheel vibration measurement method based on axle box acceleration

Abstract

The invention discloses an anti-electromagnetic-interference train wheel vibration measurement method based on axle box acceleration. In the method, a system composed of a supporting plate, a rubber sleeve, a wireless speed sensor, a wireless acceleration sensor, a wireless laser acceleration sensor, a signal receiver and a computer is provided. An end cover of a train wheel set is sleeved with the supporting plate, the sensors are fixed to the upper and lower ends of the supporting plate, the coefficient of wheel vibration in the train travelling process is measured through the sensors and transmitted to the receiver through a network module, and the relationship that the coefficient is varied along with train operating speed is finally obtained through the computer. Interferences which the wireless sensors are likely to suffer from are eliminated by combining software with hardware, vibration measurement data is subjected to trend correction through the wavelet trend correction method, and real-time monitoring is achieved in the train travelling process. The system is simple in structure, convenient to carry, simple to operate, convenient to disassemble, high in measurement precision, accurate in analysis and suitable for various passenger and goods trains.

Description

technical field [0001] The invention relates to a train wheel contact vibration test, in particular to a train wheel vibration test method based on axle box acceleration anti-electromagnetic interference. Background technique [0002] In recent years, the development of railway transportation in the direction of high speed, heavy load and high density has significantly improved the dynamic effect between the wheel and rail, shortened the change period of the track state, and led to aggravated wheel vibration and reduced vehicle ride comfort, thus affecting the contact vibration of the wheel. Higher requirements are put forward for monitoring and control. The test of wheel contact vibration is of great significance to the guarantee of vehicle running quality. The test of wheel contact vibration usually uses sensors and other equipment, and the work of sensors or the transmission of wireless network modules is often subject to many interferences, such as electromagnetic induc...

AI Technical Summary

Problems solved by technology

[0003] The current wheel vibration detection technology has disadvantages such as high economic cost, complex system structure, and weak anti-electromagnetic interference ability.

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