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Method, device, equipment and storage medium for purifying axis track of rotating machinery

A technology of axis trajectory and rotating machinery, which is used in measuring devices, testing of machine/structural components, instruments, etc. It can solve the problem of inaccurate purification of axis trajectory, and achieve the effect of eliminating complex noise pollution and reducing influence.

Active Publication Date: 2021-11-19
格创东智(深圳)科技有限公司
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Problems solved by technology

[0004] Embodiments of the present invention provide a method, device, equipment, and storage medium for purifying the shaft center track of a rotating machine, which solves the problem of inaccurate purification of the shaft center track caused by signal denoising only in existing methods for purifying the shaft center track of rotors

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  • Method, device, equipment and storage medium for purifying axis track of rotating machinery
  • Method, device, equipment and storage medium for purifying axis track of rotating machinery

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Embodiment Construction

[0064] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0065] The embodiment of the present application considers that the vibration signal is only decomposed by harmonic wavelet, and the amplitude of the reconstructed signal is constant in the frequency band and zero outside the band. Therefore, the decomposed signal is often mixed with irrelevant components in the band. figure 1 as shown, figure 1 It is a schematic diagram of the results of an embodiment of the purification results of the axis trajectory only through harmonic wa...

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Abstract

The invention discloses a method, device, equipment and storage medium for purifying the shaft center track of a rotating machine, which solves the problem of inaccurate purification of the shaft center track caused by signal denoising only in the existing rotor shaft center track purification method; Obtain the vibration signal during the operation of the rotating machinery for harmonic wavelet decomposition to obtain the time-domain characteristics of the vibration signal, and eliminate the influence of noise in the axis track signal; and correct the time-domain characteristics of the vibration signal according to the rotational speed information of the rotating machinery, Extract the time-domain characteristics of the vibration signal corresponding to the rotational speed information of the rotating machinery from the time-domain characteristics of the vibration signal, further filter the noise in the axis track signal, eliminate the interference of complex noise pollution and non-stationary components caused by faults, and accurately The center track of the rotating shaft is purified, and at the same time, the influence of the bandwidth of the frequency band and the constant amplitude of the harmonic wavelet decomposition on the signal reconstruction is reduced.

Description

technical field [0001] The invention relates to the technical field of rotating machinery equipment, in particular to a method, device, equipment and storage medium for purifying the axis track of a rotating machinery. Background technique [0002] As an important state characteristic parameter of rotating machinery, axis trajectory can reflect the operation status of equipment intuitively, simply and vividly. However, in the actual working state, the axis trajectory of the rotor will inevitably be disturbed by random noise and electromagnetic signals. At the same time, the abnormal vibration caused by the rotor fault will make the axis trajectory abnormally disordered, and it is difficult to obtain the characteristic of the fault. Clear axis trajectory. Therefore, getting rid of noise and non-stationary component interference and obtaining a clearly identifiable axis trajectory after purification is an important prerequisite for identifying the type of rotating machinery f...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00G06F17/15
CPCG01M99/004G06F17/15
Inventor 徐驰陈仕琦李志威曲宗福刘舒妍何军
Owner 格创东智(深圳)科技有限公司
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