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A Sparse Constrained Generative Adversarial Network Implementation Method for Vibration Signals of Rotating Machinery

A sparse constraint, vibration signal technology, used in the testing of mechanical components, biological neural network models, mechanical bearing testing, etc., can solve the lack of stable generation of the original time domain vibration signal of rotating machinery, failure to retain all the information of the original vibration signal, Complex network structure and other problems, to achieve the effect of expanding the sample set of vibration signals, reducing adverse effects, and improving model performance

Active Publication Date: 2021-03-16
BEIHANG UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, neither spectrum generation nor feature generation can preserve all the information of the original vibration signal
Existing methods lack the ability to stably generate the original time-domain vibration signals of rotating machinery, and all require complex network structures, which further lead to training instability

Method used

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  • A Sparse Constrained Generative Adversarial Network Implementation Method for Vibration Signals of Rotating Machinery
  • A Sparse Constrained Generative Adversarial Network Implementation Method for Vibration Signals of Rotating Machinery
  • A Sparse Constrained Generative Adversarial Network Implementation Method for Vibration Signals of Rotating Machinery

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specific Embodiment

[0147] In the embodiment of the present invention, a public data set provided by Case Western Reserve University (CWRU) is used to verify the effectiveness of the invented method.

[0148] The dataset contains vibration signals of ball bearings collected by accelerometers. The test bench for testing and collecting signals consists of a drive motor, torque sensor / encoder, dynamometer, and control circuit. The accelerometer for collecting signals is connected to the equipment in a magnetic manner.

[0149] The load level is 1-hp, and the sampling frequency of the vibration signal is 48 kHz. The data set contains normal (N), inner ring fault (IR), rolling element fault (B), outer ring fault (OR), and the inner ring fault, rolling element fault and outer ring fault mode respectively contain 0.007, 0.014 , 0.021 inch three different fault sizes. Therefore, a total of 10 different health states are included in the dataset.

[0150] Since the specific methods of generating vibrati...

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Abstract

The invention discloses a method for implementing a sparsity-constrained generation confrontation network of vibration signals of rotating machinery, including: constructing an input layer dimension and an output layer dimension as w , the hidden layer dimension is m The sparse autoencoder of ; the dimension obtained after preprocessing the collected vibration signal is w The training sample of the vibration signal trains the constructed sparse autoencoder to obtain a trained sparse autoencoder; use the trained sparse autoencoder to construct a sparse constrained generative adversarial network including a generator and a discriminator; use the dimension for w The sparse constrained generative adversarial network is trained with the vibration signal training samples and noise samples, and the sparse constrained generative adversarial network that can use noise to generate vibration signals of rotating machinery is obtained.

Description

technical field [0001] The invention relates to the technical field of vibration signal generation of rotating machinery, in particular to a method for implementing a sparse constraint generation confrontation network of vibration signals of rotating machinery. Background technique [0002] As an important part of industrial equipment, rotating machinery plays a key role in the operation of the equipment. Therefore, the operating status of the rotating machinery can greatly affect the overall operating status of the equipment. Once the rotating machinery fails, it is easy to cause the overall failure of the equipment. Lead to adverse consequences such as equipment downtime, economic losses and damage to personal safety. However, rotating machinery usually operates under harsh environmental conditions such as high loads and variable working conditions, and is prone to degradation and failure. Therefore, health management such as fault detection, fault diagnosis, and health as...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62G06N3/04G06N3/08G01M13/02G01M13/028G01M13/04G01M13/045
CPCG06N3/088G01M13/04G01M13/045G01M13/02G01M13/028G06N3/045G06F2218/08G06F18/2136G06F18/214
Inventor 丁宇马梁马剑王超吕琛程玉杰
Owner BEIHANG UNIV
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