Some notes on the calculation of pitching and heaving in longitudinal waves

Article type: Research Article

Authors: Gerritsma, J.

Abstract: The exciting forces and moments are calculated for a normal cargo-passengership with zero velocity in longitudinal waves. These calculations are based on the Froude-Kriloff hypothesis and on the velocity potential for waves of small amplitude according to Lamb. The influence of second order quantities (such as the Smith effect or the inclusion of relative velocity) on the exciting forces and moments is considered, as well as the influence of the coupling between heaving and pitching motions. The same calculations are made for a mathematical model, and a comparison is made with published experimental results.

DOI: 10.3233/ISP-1956-32102

Journal: International Shipbuilding Progress, vol. 3, no. 21, pp. 255-264, 1956