Smart Structures and Systems

  • 제33권5호
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  • Pages.375-383
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  • 2024
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Real-time estimation of responses and loads of real-scale pipes subjected to earthquakes and external loads using digital twin technology

  • Dongchang Kim (School of Convergence & Fusion System Engineering, Kyungpook National University) ;
  • Shinyoung Kwag (Department of Civil and Environmental Engineering, Hanbat National University) ;
  • Sung-Jin Chang (Seismic Research and Test Center, Pusan National University) ;
  • Seunghyun Eem (School of Convergence & Fusion System Engineering, Kyungpook National University)
  • 투고 : 2023.07.24
  • 심사 : 2024.05.27
  • 발행 : 2024.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

Infrastructure facilities contain various pipe systems, which can be considerably damaged by external loads such as earthquakes. Therefore, structural health monitoring (SHM) and safety assessment of pipes are crucial. Digital twin technology for SHM of pipes is important in the industry. This study proposes a digital twin system that estimates the behavior, stress, and external load of real-scale pipes in real time under simultaneous seismic and external loads using a minimum number of sensors. Vibration tests were performed to construct the digital twin system, and a numerical model was developed that considered the dynamic characteristics of a target pipe. Moreover, a reduced-order modeling technique of a numerical model was applied to enhance its real-time performance. The digital twin system successfully estimated the response of the pipe at all points. Verification of the digital twin system was performed by comparing it with the experimental parameters of a real-scale pipe. The proposed digital twin system can help enhance SHM and system's maintenance.

키워드

과제정보

This work was partly supported by Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government (MOTIE) (No. 20224B10200050) and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korean Government (Ministry of Trade, Industry, and Energy) (No. 20224000000150).

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