Method for monitoring running state of high-speed train gear box

Abstract

The invention discloses a method for monitoring the running state of a high-speed train gear box and belongs to the field of state monitoring of gear boxes. The method includes the following steps that vibration acceleration sensors are arranged in the X direction, the Y direction and the Z direction of the gear box and used for acquiring vibration acceleration signals in all direction of the gearbox; wavelet energy of the vibration acceleration signals on each frequency band serves as characteristic parameters of the running state of the gear box; according to historical data generated when the gear box runs normally, a characteristic parameter sample training database is generated; classical field matter-element models and joint field matter-element models in all the vibration directions are built when the gearbox runs normally; classical fields of characteristic parameters of the matter-element models in all the vibration directions are optimized and determined, a matter-element model of the current running state of the gearbox is built, the comprehensive correlation degree between the current running state and a normal running state is calculated, and whether the current gearbox normally runs or not is judged. The method for quantitatively and qualitatively judging the running state of the gear box is provided, and a basis is provided for monitoring the state of the gearbox.

Description

technical field [0001] The invention relates to a method for monitoring the running state of a high-speed train gearbox. It can qualitatively and quantitatively judge whether the current gearbox is in normal operation and the degree of normal operation or abnormal operation according to the characteristic parameters of the current operation state of the high-speed train gearbox. Background technique [0002] The "Twelfth Five-Year Special Plan for the Development of High-Speed ​​Train Science and Technology" proposes to continue to vigorously promote the development of my country's high-speed railways. "During the period, the technical goals of my country's high-speed rail development. It can be seen that the position of high-speed trains in the rail vehicle system is becoming more and more important. Safety and reliability are always the top priority of the vehicle system, as well as the foundation and lifeline of the development of rail vehicles. Under the operating cond...

AI Technical Summary

Problems solved by technology

Under the operating conditions of high speed and heavy load, high-speed trains will inevitably deteriorate the operating environment of vehicle components, suspension systems, transmission systems, etc., and pose a huge threat to the safe operation of vehicles.

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