Abstract: ANSYS-AQWA is applied to analyze the rolling motion response of the damaged ship DTMB5415 under several working conditions, and compared with the results in the literature, to verify the practicality of the hydrodynamic model, and the rolling motion response database of the damaged ship is constructed. The support vector regression algorithm is used to model the rolling motion database for identification, and the relationship between the working condition elements and coefficients in the equation of roll motion is investigated, and a fast prediction model for rolling motion is constructed and validated, which is a significant improvement in the prediction efficiency compared with the traditional computational fluid dynamics models.

Key words: fast prediction, support vector regression, damaged ship, rolling motion