抄録
In this study, critical wind velocity of a Ro-Ro passenger ship equipped with side thrusters are examined. Two different methods were developed to identify the critical wind velocity. One is based on static equilibrium. The other is numerical maneuvering simulation of the ship in a port. Wind forces and moment were compared with forces and moment acting on a ship caused by side thrusters or rudder angle. Furthermore numerical maneuvering simulation in a port was also developed to confirm the calculation results. This paper may offer a more efficient way to estimate critical wind velocity of a ship equipped with side thrusters in a certain port.