Transfer Functions Of Nonlinear Motion For Ship Advancing In Head Seas
Price
Free (open access)
Transaction
Volume
45
Pages
10
Published
1999
Size
660 kb
Paper DOI
10.2495/MT990161
Copyright
WIT Press
Author(s)
Jasna Prpic-Orsic, Roko Dejhalla & Albert Zamarin
Abstract
The non-linear effects of large motion, caused by added mass, damping coefficients, exciting force and restoring force change with time, cannot be neglected. When an incoming wave approaches the body, an instantaneous draft is computed, and the draft respective coefficients are interpolated using linear regression method. The equations of non-linear motion of ship in head waves are formulated in the paper. The wave is described by linear theory. To solve the coupled time-dependent equations of motion, the trigonometric series method is developed. The comparison of results with experimental values and with the values obtained by fourth-order Runge-Kutta method confirms the numerical results. Compared with Runge-Kutta method the developed
Keywords