Structural Engineering and Mechanics

  • 제57권5호
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  • Pages.921-936
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  • 2016
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Transient response analysis by model order reduction of a Mokpo-Jeju submerged floating tunnel under seismic excitations

  • Han, Jeong Sam (Department of Mechanical Design Engineering, Andong National University) ;
  • Won, Boreum (Coastal Engineering Research Division, Korea Institute of Ocean Science and Technology) ;
  • Park, Woo-Sun (Coastal Engineering Research Division, Korea Institute of Ocean Science and Technology) ;
  • Ko, Jin Hwan (Coastal Engineering Research Division, Korea Institute of Ocean Science and Technology)
  • 투고 : 2015.07.29
  • 심사 : 2016.01.27
  • 발행 : 2016.03.10
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, a model order reduction technique is applied to solve the transient responses of submerged floating tunnel (SFT) from Mokpo to Jeju under seismic excitations. Because the SFT is a very long structure as well as a transient response analysis requires large amount of computational resources, the model order reduction is mandatory in the design stage of the SFT. Thus, we apply a model order reduction based on Krylov subspace to the simplified finite element model of the SFT. The responses of the reduced order model are compared with those of the full order model and also are verified by referring a previous work. In conclusion, the computational resources are dramatically reduced with an acceptable accuracy by using the model order reduction, which eventually is useful for designing the full-scale model of SFTs.

키워드

과제정보

연구 과제번호 : Development of core techniques for the practical use of submerged floating tunnels

연구 과제 주관 기관 : Korea Institute of Ocean Science and Technology

참고문헌

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피인용 문헌

  1. The role of cable stiffness in the dynamic behaviours of submerged floating tunnel vol.138, 2017, https://doi.org/10.1051/matecconf/201713802026
  2. Transient response analysis of tapered FRP poles with flexible joints by an efficient one-dimensional FE model vol.59, pp.2, 2016, https://doi.org/10.12989/sem.2016.59.2.243
  3. Performance Evaluation of Submerged Floating Tunnel Subjected to Hydrodynamic and Seismic Excitations vol.7, pp.11, 2017, https://doi.org/10.3390/app7111122
  4. Time-Domain Hydro-Elastic Analysis of a SFT (Submerged Floating Tunnel) with Mooring Lines under Extreme Wave and Seismic Excitations vol.8, pp.12, 2018, https://doi.org/10.3390/app8122386
  5. Comparison of model order reductions using Krylov and modal vectors for transient analysis under seismic loading vol.76, pp.5, 2016, https://doi.org/10.12989/sem.2020.76.5.643