Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Time Domain Analysis of a Tension Leg Platform in Multi-Directional Irregular Waves

다방향 불규칙파중의 인장계류식 해양구조물의 시간영역 해석

  • Lee, Chang-Ho (Department of Naval Architecture, Tongmyong University) ;
  • Kim, Chuel-Hyun (Department of Naval Architecture and Marine Systems Engineering, Pukyong National University)
  • 이창호 (동명대학교 조선공학과) ;
  • 김철현 (부경대학교 조선해양시스템공학과)
  • Published : 2006.10.31
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Abstract

The main object of this study is to develop an accurate and convenient method for the response analysis of offshore structures in real sea states. A numerical procedure is described for predicting the motion responses and tension variations of the ISSC TLP in multi-directional irregular waves. The developed numerical approach in the frequency domain is based on acombination of the three dimensional source distribution method, the dynamic response analysis method, and the spectral analysis method. Frequency domain analysis in the multi-directional irregular waves is expanded to a time domain analysis by using a convolution integral after obtaining the impulse response by Fourier transformation. The results of the comparison between responses in the frequency and time domain confirmed the validity of the proposed approach.

Keywords

References

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