This paper presents an analytical technique based on the two- dimensional Green function method associated with a cross-flow approach for taking viscous effects into account to estimate the motion response of catamarans in the frequency domain. In order to validate this method, the numerical results are compared with experimental values obtained for two different catamarans. In the second part of the paper tests carried out with a third catamaran configuration are presented to evaluate the non-linear effects. These test results cover different speeds and wave heights at a wide range of wave frequencies. The paper concludes that the two-dimensional method correlates very well with measurements of small amplitude motions. For large amplitude motion tests, the non-linear effects become significant when the model speed and wave amplitudes increase. The peak values of heave and pitch motions measured around the resonance frequency are smaller than those obtained from the linear theory.

  • Supplemental Notes:
    • Ocean Engng, v 23 n 1, Jan 1996, p 89 [17 p, 9 ref, 18 fig]
  • Authors:
    • Fang, C C
    • Chan, H S
    • Incecik, A
  • Publication Date: 1996


  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00718987
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 27 1996 12:00AM