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모리슨 항력을 고려한 파랑 중 TLP 거동 특성 연구Numerical Study on Wave-Induced Motion Response of Tension Leg Platform in Waves
- Other Titles
- Numerical Study on Wave-Induced Motion Response of Tension Leg Platform in Waves
- Issue Date
- 2014
- Publisher
- 한국해양공학회
- Keywords
- Morison equation 모리슨 식; Drift motion 표류운동; Ringing effect 링잉효과; Time domain analysis 시간영역해석; Tension Leg Platform 계류인장각플랫폼
- Citation
- 한국해양공학회지, v.28, no.6, pp 508 - 516
- Pages
- 9
- Journal Title
- 한국해양공학회지
- Volume
- 28
- Number
- 6
- Start Page
- 508
- End Page
- 516
- ISSN
- 1225-0767
2287-6715
- Abstract
- A numerical method to investigate the non-linear motion characteristics of a TLP is established. A time domain simulation thatincludes the memory effect using the convolution integral is used to consider the transient effect of TLP motion. The hydrodynamic coefficients andwave force are calculated using a potential flow model based on the HOBEM(higher order boundary element method). The viscous drag force actingon the platform and tendons is also considered by using Morison’s drag. The results of the present numerical method are compared withexperimental data. The focus is the nonlinear effect due to the viscous drag force on the TLP motion. The ringing, springing, and drift motion aredue to the drag force based on Morison's formula.
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