Analysis of the Nonlinear Motions of a Tension Leg Platform in Time Domain

시간영역에서 인장계류식 해양구조물의 비선형 운동응답 해석

  • 이창호 (동명대학 조선해양시스템과)
  • Published : 2001.11.01

Abstract

In the presence of incident waves with different frequencies, there are second order sum and difference frequency wane exciting forces due to the nonlinearty of the incident waves. Although the magnitudes of these nonlinear forces are small, they act at sum and difference frequencies away from those of the incident waves. So, the second order sum and difference frequency wane loads occurring close to the natural frequencies of TLPs often give greater contributions to high and low frequency resonant responses. The components of the second order forces which depend on first order quantities have been evaluated using the three dimensional source distribution method. The numerical results of time domain motion analysis for the nonlinear wave exciting forces in regular waves are compared with the numerical ones of frequency domain analysis. The results of comparison confirmed the validity of the proposed approach.

Keywords

References

  1. Proceedings of the fourth International Offshore and Polar Engineering Conference A proposed Ringing Analysis Model for Higher Order Tether Response Natving, B. J.
  2. Proceedings of the fifth International Offshore and Polar Engineering Conference TLP Design Philosophy-Past, Present, Future Natving, B. J.;Vogel, H.
  3. Proceedings of the fifth International Offshore and Polar Engineering Conference Springing and Ringing Due to Nonlinear Waves on a Coupled TLP Kim, C. H.;Zhao, C.;Zou, J.
  4. Offshore Technology Conference v.7446 Springing Damping of Tension Leg Platforms Huse, E.;Utnes, T.
  5. 日本造船學會論文集 v.178 緊張係留構造物(TLP)の不規則波中非線形應答;2?を含めた高?の?力?性 加藤俊司;Teng, B.;齋藤昌勝
  6. 日本造船學會論文集 v.180 緊張係留構造物(TLP)のりソギソグ應答;3?波力の解析 加藤俊司;Teng, B.;安藤?友
  7. The Nonlinear Sum-Frequency Wave Excitation and Response of a Tension Leg Platform Kim, M. H.;Yue, D. K. P.
  8. JOIA-TLPの彈性應答計算 福岡哲二