Rolling bearing fault diagnosis method based on spectral value ratio
A technology for fault diagnosis and rolling bearings, which is applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., to achieve the effect of simple method, easy implementation, and high fault identification rate
Pending Publication Date: 2021-07-09
KUNMING UNIV OF SCI & TECH
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[0004] The purpose of the present invention is to provide a rolling bearing fault diagnosis method based on spectral value ratio, which solves the technical problem in the prior art of obtaining vibration signals from rolling bearings and performing spectral value ratio to determine the rolling bearing fault diagnosis method
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[0054] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0055] Please refer to Figure 1-4 As shown, a rolling bearing fault diagnosis method based on spectral value ratio, including data preparation module 1, fault frequency calculation module 2, data reading and waveform display modules 3, 7, is characterized in that by using sensors, The PC computer and acquisition program are used as the data preparation module 1 to analyze the collected rolling bearing vibration signals, and to judge whether there is a pulse signal through the fault frequency calculation module 2, and to judge the existence of the rolling bearing vibration signals through the data reading and waveform display module 3 time domain (eg figure 2 shown), frequency domain (such as image 3 shown) and the envelope spectrum waveform (such as Figure 4 As shown), read and display the rol...
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The invention discloses a rolling bearing fault diagnosis method based on a spectral value ratio. According to the principle, data, including time domain waveform, frequency spectrum, envelope spectrum and time domain characteristic parameters of vibration signals, of bearing vibration signals of known fault types are analyzed, common characteristics of the vibration signals during bearing fault are counted, and then condition rules of fault diagnosis are compiled on the basis of the characteristics. The system comprises seven main modules including a data preparation module, a fault frequency calculation module, a data reading and oscillogram display module, a time domain characteristic parameter extraction module, an envelope spectrum ratio calculation and analysis module, a diagnosis rule module and a fault diagnosis module. The data type of the bearing vibration signal is selected, corresponding bearing parameters are input, then operation is clicked, a system carries out analysis, and the fault type of the bearing can be obtained.
Description
technical field [0001] The invention relates to a rolling bearing fault diagnosis method based on spectral value ratio, belonging to the technical field of mechanical fault detection. Background technique [0002] Today, with the rapid development of mechanical automation, mechanical equipment plays an important role, especially large-scale machinery; it can be said that mechanical equipment plays a key role in promoting the development of society. The safety of mechanical equipment during operation is a problem that we have to pay attention to. Mechanical equipment should have safety and stability during operation. Therefore, to meet these performances of mechanical equipment, the fault diagnosis technology of mechanical equipment plays a very important role. Mechanical fault diagnosis technology is used to measure the state information of mechanical equipment during operation or under relatively static conditions, and quantitatively identify mechanical equipment and its ...
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IPC IPC(8): G01M13/045
CPCG01M13/045
Inventor 刘韬王廷轩王振亚柳小勤刘畅伍星杨永灿
Owner KUNMING UNIV OF SCI & TECH