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Fault analysis method and device for rotating machine

A fault analysis method and technology for rotating machinery, applied in the field of rotating machinery, can solve the problems of inability to guarantee the safe operation of equipment, low fault accuracy, and inability to timely and accurately discover equipment, etc., to ensure normal and safe operation and improve the effect of accuracy.

Inactive Publication Date: 2019-04-02
NORTHEASTERN UNIV
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Problems solved by technology

However, the accuracy of manual judgment of equipment faults is low, and even the faults of equipment cannot be found in time and accurately, so the normal and safe operation of equipment cannot be guaranteed. Therefore, a reliable fault analysis method for rotating machinery is proposed to ensure its normal and safe operation. Operation has become an urgent technical problem to be solved

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  • Fault analysis method and device for rotating machine
  • Fault analysis method and device for rotating machine
  • Fault analysis method and device for rotating machine

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Embodiment Construction

[0044] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0045] As mentioned in the background, at present, in production practice, it is usually manually judged whether there is a fault in the equipment by using the status and noise of the rotating machine during operation. However, the accuracy of manual judgment of equipment faults is low, and even the faults of equipment cannot be found in time and accurately, so the normal and safe operation of equipment cannot be guaranteed. Therefo...

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Abstract

The invention discloses a fault analysis method and device for a rotating machine, and relates to the technical field of rotating machine. The main object of the present invention is to improve the accuracy of determining the failure of the rotating machine to ensure normal and safe operation of the device. The method comprises the following steps of: acquiring a vibration signal of the rotating machine when the rotating machine is stably operated; analyzing the vibration signal, wherein the analysis comprises a time domain analysis, a frequency domain analysis, and an orbit of shaft centerline analysis, and obtaining a time domain characteristic value, a frequency domain characteristic value, and an orbit of shaft centerline that reflect the vibration state of the rotating machine; determining whether the rotating machine has a fault according to the time domain characteristic value, the frequency domain characteristic value, and the orbit of shaft centerline.

Description

technical field [0001] The present invention relates to the technical field of rotating machinery, in particular to a fault analysis method and device for rotating machinery. Background technique [0002] With the improvement of modern industrial production level, mechanical equipment such as generator sets, centrifugal compressors and water pumps occupy a very important position in the industrial sector, which is the key equipment in major factories. Normal and safe operation is especially important. [0003] At present, in production practice, it is usually manually judged whether there is a fault in the equipment by using the status and noise of the rotating machinery during operation. However, the accuracy of manual judgment of equipment faults is low, and even the faults of equipment cannot be found in time and accurately, so the normal and safe operation of equipment cannot be guaranteed. Therefore, a reliable fault analysis method for rotating machinery is proposed t...

Claims

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Application Information

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IPC IPC(8): G01M99/00G01H17/00
Inventor 李一鸣宋桂秋王磊
Owner NORTHEASTERN UNIV
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