The distribution of the hydrodynamic forces on a heaving andpitched shipmodel in still water¹²

Article type: Research Article

Authors: Gerritsma, J. | Beukelman, W.

Note: [1] Publication of the Netherlands Research Centre T.N.O. for Shipbuilding and Navigation.

Note: [2] Paper prepared for the ONR Symposium 1964.

Abstract: Forced oscillation tests are carried out with a segmented shipmodel to investigate the distribution of the hydrodynamic forces along the hull for heaving and pitching motions. The vertical forces on each of the seven sections of the shipmodel are measured as a function of forward speed and frequency. By using the in-phase and quadrature components of these forces, an analysis is made of their distribution along the length of the shipmodel. The experimental results are compared with the results of a simple strip theory, taking into account the effect of forward speed. The comparison shows a satisfactory agreement between theory and experiment.

DOI: 10.3233/ISP-1964-1112302

Journal: International Shipbuilding Progress, vol. 11, no. 123, pp. 506-522, 1964