Gearbox fault detection method and system based on vibration signal distribution characteristic recognition

A fault detection and vibration signal technology, which is applied in vehicle testing, mechanical component testing, machine/structural component testing, etc., can solve problems such as gearbox faults and monitoring, and achieve accurate identification and strong robustness.

Active Publication Date: 2020-04-07
HEFEI UNIV OF TECH
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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a gearbox fault detection method and system based on vibration signal distribution feature recognition, which solves the problem of gearbox fault monitoring when the vehicle is running in real time

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  • Gearbox fault detection method and system based on vibration signal distribution characteristic recognition
  • Gearbox fault detection method and system based on vibration signal distribution characteristic recognition
  • Gearbox fault detection method and system based on vibration signal distribution characteristic recognition

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Embodiment Construction

[0052]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] The embodiment of the present application provides a transmission fault detection method and system based on vibration signal distribution feature recognition, which can keenly and accurately monitor the working status of the transmission and detect abnormalities in time during the continuous operation of the transmission, which solves the problem of real-time vehicle operation. The monitoring problem of transmission fai...

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Abstract

The invention provides a gearbox fault detection method and system based on vibration signal distribution characteristic recognition, and particularly relates to the technical field of data mode recognition. The method comprises the steps of collecting vibration signals generated by a gearbox in real time in the automobile driving process, and establishing a data set to be tested; constructing a fault detection model based on the established to-be-detected data set and a preset sample data set reflecting the normal working state of the gearbox; fitting and analyzing the distribution structuresof the sample data set and the to-be-detected data set by taking the data distribution characteristics as measurement based on the constructed fault detection model, and performing fault detection onthe gearbox by identifying an abnormal data mode in the to-be-detected data set; and outputting a diagnosis result of the gearbox fault type based on the identification of the abnormal data mode distribution characteristics. Based on the scheme provided by the invention, the fault generated by the gearbox in the working state in real time can be rapidly detected, and the robustness is relativelyhigh in a complex working environment influenced by multiple vibration sources.

Description

technical field [0001] The invention relates to the technical field of data pattern recognition, in particular to a gearbox fault detection method and system based on vibration signal distribution feature recognition. Background technique [0002] As one of the most universal means of transportation, the safety of automobiles has always been a hot issue in various disciplines. As the main kinetic energy transmission device of the car, the gearbox ensures that the engine is in the best power performance state by coordinating the engine speed and the actual driving speed of the wheels, and the stability of its operating condition will directly affect the normal operation of the entire car. Therefore, how to accurately identify the working state of the gearbox and find abnormalities in time is the key research to ensure the safe driving of the car. [0003] Equipment fault diagnosis technology is an emerging science that monitors the operating status of equipment, obtains rele...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/028G01M17/007
CPCG01M13/02G01M17/007
Inventor 任明仑黄晓地褚伟朱晓曦程八一
Owner HEFEI UNIV OF TECH
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