Stochast!c response of a tension leg platform to viscous and potential drift forces

نویسندگان

  • Ahsan Kareem
  • Yousun Li
چکیده

The wave drift forces on tension leg platforms (TLP) are contributed by secondorder potential and viscous wave load effects, the fluctuations in wave surface elevation and the influence of platform displaced position on the wave excitation. These forces are expressed in terms of in phase and out of phase drift forces. In this study, computationally efficient time domain and frequency domain based schemes are developed to evaluate the TLP response to drift forces. These schemes retain the statistical relationship that exists among these drift forces and the first-order wave forces which is important for the combined response analysis. A parameter study is conducted to delineate the relative significance of different drift forces for several representative sea-states.

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تاریخ انتشار 2002