On the influence of three-dimensional effects and restricted water depth on ship hull vibration¹

Article type: Research Article

Authors: Madsen, Niels Fl.

Affiliations: Department of Ocean Engineering, The Technical University of Denmark, 2800 Lyngby

Note: [1] This work has been financially supported by the Danish Council for Scientific and Technical Research.

Abstract: In this note a finite element method for the calculation of the three-dimensional added mass of a vibrating ship hull is presented. The hull is approximated by a cylinder of the same overall dimensions as the ship and the mode of vibration is approximated by the vibration mode of a uniform free-free Bernoulli-Euler beam. The method has been compared with an analytical solution and with measured results. Finally, a parametric study of the effect of restricted water on the three-dimensional added mass is presented.

DOI: 10.3233/ISP-1978-2528602

Journal: International Shipbuilding Progress, vol. 25, no. 286, pp. 151-156, 1978