“Slow Drift-Oscillations of a Ship in Irregular Waves”

Authors: Odd M. Faltinsen and Arne E. Løken,
Affiliation: NTNU and Det Norske Veritas (DNV)
Reference: 1980, Vol 1, No 4, pp. 195-213.

Keywords: Hydrodynamics, slowly varying wave forces, wave drift forces, strip theory, mooring, potential theory

Abstract: A procedure to calculate horizontal slow drift excitation forces on an infinitely long horizontal cylinder in irregular beam sea waves is presented. The hydrodynamic boundary-value problem is solved correctly to second order in wave amplitude. Results in the form of second order transfer functions are presented for different, two-dimensional shapes. It is concluded that Newman´s approximative method is a practical way to calculate slow drift excitation forces on a ship in beam sea and it is suggested that it may be used in a more general case. Applications of the results for moored ships are discussed.

PDF PDF (4646 Kb)        DOI: 10.4173/mic.1980.4.1

DOI forward links to this article:
[1] Chinpu Zhou and Tian-Yao Jiang (1993), doi:10.1016/0169-5983(93)90002-R
[2] J. A. P. Aranha and C. P. Pesce (1988), doi:10.1007/978-3-642-83331-1_30
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BibTeX:
@article{MIC-1980-4-1,
  title={{Slow Drift-Oscillations of a Ship in Irregular Waves}},
  author={Faltinsen, Odd M. and Løken, Arne E.},
  journal={Modeling, Identification and Control},
  volume={1},
  number={4},
  pages={195--213},
  year={1980},
  doi={10.4173/mic.1980.4.1},
  publisher={Norwegian Society of Automatic Control}
};