... of the structure has been considered only. Theory and results from labora- tory tests will be explained, applying regular waves, regular wave groups and irregular waves as well. I;; = amplitude of incident wave Ba = breadth of" the structure f = frequency (inverse of the wave period) The expression (1) indicates...

... or calculated drifting forces on an object moored in regular waves, a prediction can be made of the drifting forces induced by wave trains consisting of regular wave groups. Also for an irregular wave train the drifting force on the barge could be computed as a function of time, which made it possible...