논문 상세보기
pp.335-349
As the frequency of seismic disasters in Korea has increased rapidly since 2016, interest in systematic maintenance and crisis response technologies for structures has been increasing. A data-based leading management system of Lifeline facilities is important for rapid disaster response. In particular, the water supply network, one of the major Lifeline facilities, must be operated by a systematic maintenance and emergency response system for stable water supply. As one of the methods for this, the importance of the structural health monitoring(SHM) technology has emerged as the recent continuous development of sensor and signal processing technology. Among the various types of SHM, because all machines generate vibration, research and application on the efficiency of a vibration-based SHM are expanding. This paper reviews a vibration-based pipeline SHM system for seismic disaster response of water supply pipelines including types of vibration sensors, the current status of vibration signal processing technology and domestic major research on structural pipeline health monitoring, additionally with application plan for existing pipeline operation system.
1. 서 론
2. 진동 기반 구조적 상태 감시 시스템
2.1 구조적 상태 감시 시스템(Structural healthmonitoring, SHM)
2.2 진동 기반 구조적 상태 감시 시스템(VibrationbasedSHM)
3. 진동 센서
3.1 변위계
3.2 속도계
3.3 가속도계
4. 진동 신호 처리 기술
4.1 시계열 분석 모델(Statistical Time Series Models)
4.2 고속 푸리에 변환(Fast Fourier Transform, FFT)
4.3 단시간 푸리에 변환(Short-Time Fourier Transform,STFT)
4.4 위그너 빌 분포(Wigner-Ville distribution, WVD)
4.5 웨이블릿 변환(Wavelet Transform, WT)
4.6 칼만 필터(Kalman Filter, KF)
4.7 서포트 벡터 머신(Support vector machine, SVM)
4.8 합성곱 신경망(Convolutional Neural Network,CNN)
5. 연구 현황
5.1 국내 연구 현황
5.2 국외 연구 현황
6. 적용 방안
7. 결론 및 고찰
References
