은닉 마르코프 모델을 이용한 속도 변화가 있는 회전 기계의 상태 진단 기법

장미; 이종민; 황요하; 조유종; 송재복

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자료유형: 학술저널

저자정보: 장미 이종민 황요하 조유종 송재복

저널정보: 한국소음진동공학회 한국소음진동공학회논문집 한국소음진동공학회논문집 제22권 제5호

발행연도: 2012.5

수록면: 413 - 421 (9page)

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In industry, various rotating machinery such as pumps, gas turbines, compressors, electric motors, generators are being used as an important facility. Due to the industrial development, they make high performance(high-speed, high-pressure). As a result, we need more intelligent and reliable machine condition diagnosis techniques. Diagnosis technique using hidden Markov-model is proposed for an accurate and predictable condition diagnosis of various rotating machines and also has overcame the speed limitation of time/frequency method by using compensation of the rotational speed of rotor. In addition, existing artificial intelligence method needs defect state data for fault detection. hidden Markov model can overcome this limitation by using normal state data alone to detect fault of rotational machinery. Vibration analysis of step-up gearbox for wind turbine was applied to the study to ensure the robustness of diagnostic performance about compensation of the rotational speed. To assure the performance of normal state alone method, hidden Markov model was applied to experimental torque measuring gearbox in this study.

#상태 진단 #은닉 마르코프 모델 #회전 기계 #회전 속도 보상 #Compensation of Rotational Speed #Condition Monitoring #Hidden Markov Model #Rotating Machine

참고문헌 (12)

참고문헌 신청

1. [학술지(정기간행물)] - 양보석 / 200503 / Condition classification of small reciprocating compressor for refrigerators using artificial neural networks and support vector machines / MECHANICAL SYSTEMS AND SIGNAL PROCESSING 19 (2) : 371 ~ 390

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4. [학술지(정기간행물)] - Boulahbal, D. / 1999 / Amplitude and Phase Wavelet Maps for the Detection of Cracks in Geared Systems / Mechanical Systems and Signal Processing 13 : 423 ~ 436

5. [학술지(정기간행물)] - Han, H. S. / 2011 / Neural-network-based Fault Detection andDiagnosis Method Using EIV(errors-in variables) / Journal of Sound and Vibration 21 (11) : 1020 ~ 1028

6. [학술지(정기간행물)] - Bunks, C. / 2000 / Condition-based Maintenance of MachineUsing Hidden Markov Models / Mechanical Systemsand Signal Processing 14 : 597 ~ 612