A study on long-period moored ship motions in a harbor induced by a resonant large roll motion under long-period waves

Abstract

It has been well-known that large and long-period moored ship motions in a harbor basin were caused by the resonance of surge motion with the long-period waves. However we found a different type problem that the long-period motions were induced by a resonant large roll motion under the long-period waves. We investigate the long-period ship motions in accordance with a field observation for the ship motions and numerical simulations.