Beam sea introduction
When the waves encountered by the ship are 75 to 105 degrees on the left and starboard sides, it is called transverse waves. Rolling waves mainly produce lateral motion, which includes rolling, swaying and rolling, among which rolling is mainly.  Sea waves are the main disturbance that causes ship sway. For a long time, shipbuilders have conducted many studies on the forces and moments that the ship experiences in the current. The ocean wave is a very complicated random process, and the shape of the ship is also very complicated. Therefore, the turbulent power and turbulent moment of the wave on the ship are also very complicated.