A Zigzag Maneuver for Prediction of Broaching-to Phenomenon in Astern Seas

抄録

This paper discusses a new approach for prediction the occurrence of broaching-to phenomenon in astern seas, Since there is no a standard test of broaching-to up to the moment, here, a zigzag test is used to predict such phenomenon. By means of this test several causes, which were identified by previous researchers, lead to broaching can be easily seen. Several zigzag simulations were carried out to obtain critical lines of broaching. Finally, a comparison between the simulations and the experimental results from free running test using auto pilot system is described, the comparison shows a good agreement