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회전기계를 위한 건전성 예측 및 관리 시스템 개발과 로터리 테이블에 적용

Development of Prognostics and Health Management System for Rotating Machine and Application to Rotary Table

Journal of the Korean Society for Precision Engineering 2022;39(5):337-343.
Published online: May 1, 2022

1 서울과학기술대학교 기계시스템디자인공학과

1 Department of Mechanical System Design Engineering, Seoul National University of Science & Technology

#E mail: chibum.seoultech.ac.kr, TEL: +82-2-970-6337
• Received: February 11, 2022   • Revised: March 28, 2022   • Accepted: April 6, 2022

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Analysis of Domestic Research Trends on Artificial Intelligence-Based Prognostics and Health Management
    Ye-Eun Jeong, Yong Soo Kim
    Journal of Korean Society for Quality Management.2023; 51(2): 223.     CrossRef

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Development of Prognostics and Health Management System for Rotating Machine and Application to Rotary Table
J. Korean Soc. Precis. Eng.. 2022;39(5):337-343.   Published online May 1, 2022
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J. Korean Soc. Precis. Eng.. 2022;39(5):337-343.   Published online May 1, 2022
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Development of Prognostics and Health Management System for Rotating Machine and Application to Rotary Table
Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 STFT image process of vibration
Fig. 2 Time series image of vibration
Fig. 3 Architecture of classification model
Fig. 4 Architecture of regression model
Fig. 5 Measurement method of regression data
Fig. 6 (a) Data structure of classification, and (b) Data structure of regression
Fig. 7 Time series and STFT images of CWRU data
Fig. 8 STFT images of IEEE dataset according to RUL
Fig. 9 The result of the model's application to the valid data
Fig. 10 (a) S-200 rotary table, (b)Attachment of vibration sensor on rotary table, and (c) EV-CBM-VOYAGER3-1Z
Fig. 11 Image according to the imaging method of rotary table’s vibration data
Fig. 12 GUI of PHM program
Development of Prognostics and Health Management System for Rotating Machine and Application to Rotary Table
Layer Filter size Stride Number of filters
or nodes
Conv. 1 9 × 9 2 × 2 4
Conv. 2 9 × 9 2 × 2 8
Pool. 2 4 × 4
Conv. 3 4 × 4 2 × 2 16
Conv. 4 4 × 4 2 × 2 32
Pool. 4 2 × 2
Flatten
Fully-Conn. 1 128
Fully-Conn. 2 32
Output 4
CWRU IEEE 2012 PHM
Purpose Classification Regression
Target Motor dynamometer Motor dynamometer
Types of label Defect of bearing RUL of bearing
Labels Normal, Ball, Inner, Outer fault RUL
Data feature Vibration Vibration
Sampling rate [Hz] 12,000 25,600
Rotary table’s data [%] CWRU [%]
Time series image 76 95
STFT image 97 100
Table 1 Structure of CNN model of Chen [7]
Table 2 Dataset for program verification
Table 3 Comparison of performance of failure diagnosis on datasets