Abstract
Numerical and experimental studies of nonlinear wave
loads are presented. A nonlinear time domain method has
been developed and the theoretical background of the
method are provided. The method is based on the source
formulation expressed by means of the transient
three-dimensional Green function. The time derivative of
the velocity potential in Bernoulli's equation is solved
with a similar source formulation to that of the
perturbation velocity potential. The Wigley hull form is
used to validate the calculation method in regular head
waves. Model tests of a roll-on roll-off passenger ship
with a flat bottom stern have been carried out. Model
test results of ship motions, vertical shear forces and
bending moments in regular and irregular head waves and
calm water are given. The nonlinearities in ship motions
and hull girder loads are investigated using the
calculation method and the model test results. The
nonlinearities in the hull girder loads have been found
to be significant and the calculation method can predict
the nonlinear loads for the model test ship.
| Original language | English |
|---|---|
| Pages (from-to) | 1-14 |
| Number of pages | 14 |
| Journal | Ocean Engineering |
| Volume | 75 |
| DOIs | |
| Publication status | Published - 2014 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- seakeeping
- nonlinear panel method
- hull girder loads
- model tests