Time-frequency analysis of spar motions Conference Paper uri icon


  • In the study of the dynamic response of spars to wave excitation it is normal to look not only at the time histories and maximum amplitudes but also at the frequency content of the motions in order to isolate various nonlinear effects. When dealing with wave basin tests or the results of dynamic analyses of relatively small duration the response may not have reached a steady state condition over most of the duration and it is necessary to look also at the variation of the frequency content with time. In this paper data from wave basin tests on a Spar are analyzed using a time-frequency decomposition with a continuous wavelet transform in order to show their evolutionary nature. 2005 WIT Press.

published proceedings

  • Fluid Structure Interaction and Moving Boundary Problems

author list (cited authors)

  • Altenberg, A. E., Niedzwecki, J. M., & Roesset, J. M.

complete list of authors

  • Altenberg, AE||Niedzwecki, JM||Roesset, JM

publication date

  • January 2005