Title:
METHOD FOR DETERMINING DOMINANT FREQUENCY OF ROTATING MECHANICAL EQUIPMENT, AND COMPUTING SYSTEM FOR IMPLEMENTING SAME
Document Type and Number:
WIPO Patent Application WO/2023/128552
Kind Code:
A1
Abstract:
Disclosed are a method for determining the dominant frequency of rotating mechanical equipment and a computing system for implementing same. According to an aspect of the invention, disclosed is a method for determining the dominant frequency of rotating mechanical equipment comprising the steps in which a computing system obtains measurement data, which is time-domain amplitude data, measured by a vibration sensor that detects vibrations of the rotating mechanical equipment at a predetermined sampling rate over a predetermined measurement period; converts the measurement data into frequency-domain data; the computing system classifies the frequency-domain data, by using 2-means clustering based on amplitude, into a high-amplitude cluster of data points having high amplitudes and a low-amplitude cluster of data points having low amplitudes; classifies the classified data belonging to the high-amplitude cluster into K-number of clusters by using K-means clustering based on frequency, K being an integer greater than or equal to 2; selects a representative frequency for each of the K-number of clusters; calculates, for each of the K-number of clusters, the sum of amplitudes within a predetermined frequency range centering on the representative frequency of the cluster; and determines the representative frequencies of some clusters having the largest sum of amplitudes, among the K-number of clusters, to be the dominant frequency.
Inventors:
KIM JEONG HEE (KR)
YUN IL GEUN (KR)
LEE SU (KR)
MIN HYE RI (KR)
YUN IL GEUN (KR)
LEE SU (KR)
MIN HYE RI (KR)
Application Number:
PCT/KR2022/021381
Publication Date:
July 06, 2023
Filing Date:
December 27, 2022
Export Citation:
Assignee:
EPAPYRUS INC (KR)
International Classes:
G01H1/00; G01H1/14; G01H1/16; G01M7/02; G01P15/18; G05B13/02
Foreign References:
| US20140142871A1 | 2014-05-22 | |||
| JP2021036217A | 2021-03-04 | |||
| JP2017207339A | 2017-11-24 | |||
| JP2020183955A | 2020-11-12 | |||
| KR102120756B1 | 2020-06-09 |
Attorney, Agent or Firm:
SHIM, Choong Sup (KR)
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