Experimental Ship Motion and Load Measurements in Head and Beam Seas

The study presents an experimental investigation to obtain motion and load measurements of an intact and damaged frigate model in waves. The experimental measurements will show the changes in motion and hull girder loading when a ship hull is damaged and form benchmarking data. The experiments have been carried out at the Kelvin Hydrodynamics Laboratory, University of Strathclyde, Glasgow, using a 1/100 scale segmented model of a frigate hull. During the measurements wave length/model length ratio was varied from 0.5 to 3.5 whilst the wave steepness varied from 1/50 to 1/15. The tests were carried out with a stationary model. The paper describes particulars of the model, and experimental set-up and discusses the results of motion and load measurements obtained with intact and damaged frigate hull model in head and beam sea conditions. Finally the obtained data have been compared with numerical predictions from non-linear time domain motion code implemented in ShipX