Ocean Systems Engineering

  • 제5권2호
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  • Pages.109-123
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  • 2015
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  • 2093-6702(pISSN)
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  • 2093-677X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Numerical simulation of the coupled dynamic response of a submerged floating tunnel with mooring lines in regular waves

  • Cifuentes, Cristian (Ocean Engineering Program, Department of Civil Engineering, Texas A&M University) ;
  • Kim, Seungjun (Ocean Engineering Program, Department of Civil Engineering, Texas A&M University) ;
  • Kim, M.H. (Ocean Engineering Program, Department of Civil Engineering, Texas A&M University) ;
  • Park, W.S. (KIOST)
  • 투고 : 2015.05.28
  • 심사 : 2015.06.08
  • 발행 : 2015.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

In the present study, the coupled dynamic response of a Submerged Floating Tunnel (SFT) and mooring lines under regular waves is solved by using two independent numerical simulation methods, OrcaFlex and CHARM3D, in time domain. Variations of Buoyancy to Weight Ratio (BWR), wave steepness/period, and water/submergence depth are considered as design and environmental parameters in the study. Two different mooring-line configurations, vertical and inclined, are studied to find an optimum design in terms of limiting tunnel motions and minimizing mooring-line tension. The numerical results are successfully validated by direct comparison against published experimental data. The results show that tunnel motions and tether tensions grow with wave height and period and decrease with submergence depth. The inclined mooring system is more effective in restricting tunnel motions compared to the vertical mooring system. Overall, the present study demonstrates the feasibility of this type of structure as an alternative to traditional bridges or under-seabed tunnels.

키워드

과제정보

연구 과제번호 : 연안항만 관리 및 해양에너지 활용기술 개발

참고문헌

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피인용 문헌

  1. Hydrodynamic Analysis of Submerged Floating Tunnel Structures by Finite Element Analysis vol.36, pp.6, 2016, https://doi.org/10.12652/Ksce.2016.36.6.0955
  2. Dynamic Response Analysis of Cable of Submerged Floating Tunnel under Hydrodynamic Force and Earthquake vol.2017, 2017, https://doi.org/10.1155/2017/3670769
  3. Boussinesq equations for internal waves in a two-fluid system with a rigid lid vol.6, pp.1, 2016, https://doi.org/10.12989/ose.2016.6.1.117
  4. Vibration response of cable for submerged floating tunnel under simultaneous hydrodynamic force and earthquake excitations 2018, https://doi.org/10.1177/1369433218754545
  5. 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
  6. Global Static Performance Analysis of the Cable-Stayed Bridges with Floating Tower according to Tendon Arrangement vol.30, pp.4, 2018, https://doi.org/10.7781/kjoss.2018.30.4.193
  7. Dynamic Behavior of Cable-stayed Bridges with Floating Towers under Waves vol.30, pp.4, 2018, https://doi.org/10.7781/kjoss.2018.30.4.205
  8. Feasibility Study of Submerged Floating Tunnels Moored by an Inclined Tendon System pp.2093-6311, 2018, https://doi.org/10.1007/s13296-018-0102-2
  9. Dynamic response analysis of submerged floating tunnels by wave and seismic excitations vol.7, pp.1, 2015, https://doi.org/10.12989/ose.2017.7.1.001
  10. Dynamic and structural responses of a submerged floating tunnel under extreme wave conditions vol.7, pp.4, 2015, https://doi.org/10.12989/ose.2017.7.4.413
  11. 긴장재 느슨해짐에 따른 해중 터널의 동적 불안정 거동 vol.29, pp.6, 2015, https://doi.org/10.7781/kjoss.2017.29.6.401
  12. Effect of Interfacial Tension on Internal Waves Based on Boussinesq Equations in Two-Layer Fluids vol.35, pp.2, 2015, https://doi.org/10.2112/jcoastres-d-17-00186.1
  13. Effects of the Floater Type, Initial Draft, and Tendon Arrangement on the Dynamic Behavior of the Cable-stayed Bridges with Floating Towers under Irregular Waves vol.31, pp.2, 2015, https://doi.org/10.7781/kjoss.2019.31.2.107
  14. Short-term Fatigue Damage of the Tendons for Cable Supported Bridgeswith Floating Towers under the Severe Wave Condition vol.31, pp.3, 2019, https://doi.org/10.7781/kjoss.2019.31.3.211
  15. Experimental Study of Environment-Friendly Underwater Structure-Submerged Floating Tunnel vol.980, pp.None, 2020, https://doi.org/10.4028/www.scientific.net/msf.980.346
  16. Mooring-Failure Monitoring of Submerged Floating Tunnel Using Deep Neural Network vol.10, pp.18, 2015, https://doi.org/10.3390/app10186591
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  18. Dynamic behavior of the submerged floating tunnel moored by inclined tethers attached to fixed towers vol.237, pp.None, 2021, https://doi.org/10.1016/j.oceaneng.2021.109663
  19. Prediction of dynamic and structural responses of submerged floating tunnel using artificial neural network and minimum sensors vol.244, pp.None, 2015, https://doi.org/10.1016/j.oceaneng.2021.110402