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Rotary machine missing fault feature recovery method and system

A technology for rotating machinery and fault features, which is applied in the field of recovery methods and systems for missing fault features of rotating machinery, can solve the problems of poor recovery effect, low-cost recovery quality, and a large number of training data sets, and achieves good recovery effects and high efficiency.

Active Publication Date: 2022-01-14
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a method and system for recovering missing fault features of rotating machinery to solve the problem of poor recovery effect or the need for a large number of training data sets in existing missing data recovery methods, resulting in low recovery quality and low cost. question

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  • Rotary machine missing fault feature recovery method and system
  • Rotary machine missing fault feature recovery method and system
  • Rotary machine missing fault feature recovery method and system

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Embodiment Construction

[0031]In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0032] Before any embodiments of the invention are described in detail, it is to be understood that the concepts disclosed herein are not to limit their application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The concepts illustrated in these embodiments can be practiced or carried out in various ways. The specific phrases and terms used herein are for the purpose of description and should not be regarded as limiting.

[0033] The technical solutions in the ...

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Abstract

The invention provides a rotary machine missing fault feature recovery method and system, and the method comprises the steps: obtaining a mask matrix of original data corresponding to monitoring data based on the obtained monitoring data, with missing items, of a rotating machine; establishing a prompt matrix corresponding to the mask matrix based on a preset prompt rate and the mask matrix; forming training data based on a preset noise sample set, the monitoring data, the mask matrix and the prompt matrix, and training a pre-constructed WGAIN-GP network based on the training data; and based on the trained WGAIN-GP network, obtaining a recovery signal and a recovery fault feature corresponding to the monitoring data. According to the invention, the fault features of the rotating machine caused by serious lack of monitoring data can be effectively recovered.

Description

technical field [0001] The present invention relates to the technical field of mechanical fault diagnosis, and more specifically, to a method and system for recovering missing fault features of rotating machinery. Background technique [0002] With the continuous development of science and technology, a new generation of monitoring equipment represented by wireless sensors is more and more applied to the monitoring of the health status of rotating machinery. Compared with traditional sensors, wireless sensors have a high degree of intelligence and do not require additional lines. However, in actual use, there is often the problem of missing monitoring data. In the case of a large data missing rate, it is easy to lead to the wrong assessment of the health status of the monitoring rotating machinery and the formulation of improper maintenance strategies. [0003] At present, the more commonly used methods for recovering missing data in sequences mainly include methods based o...

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Application Information

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IPC IPC(8): G06F30/27G06F17/16G06N3/08G06F111/08G06F119/10
CPCG06F30/27G06F17/16G06N3/08G06F2111/08G06F2119/10
Inventor 胡文扬王天杨褚福磊
Owner TSINGHUA UNIV