Benchmark study of global linear wave loads on a container ship with forward speed

Results are presented of a benchmark study organised by the ISSC-ITTC Joint Committee on global linear wave loads container ship with forward speed. The aim is assessment uncertainty in transfer functions due to different seakeeping codes and consequences long-term extreme vertical bending moments. Seven institutes participated benchmark, fifteen codes, representative theories use nowadays. Three general methods represented, namely strip theory, 3D frequency-domain method time-domain method. known as Flokstra's containership well documented accessible data experimental results for motion loads. comparative analysis performed heave pitch motions moments at midship. Uncertainty measures employed frequency-independent model error coefficient determination, representing bias precision respectively. Both estimates calculated individual respect average corresponding method, each results. It found that theory show lowest compared agreement experiments better other methods. Comparison present similar from 1996 doesn't any improvement uncertainty. Reduction speed also have apparent effect dispersion codes. predictions moment midship caused applications quantified, where large uncertainties found. possibility reduction these using biases presented.