ABSTRACT

This chapter discusses a preliminary investigation on the applicability of the developed numerical method for calculation of loads in different headings for practical engineering applications. It describes a numerical model with 5-degrees-of-freedom has been developed in order to deal with ship responses in oblique waves. The chapter focuses on the wave load acting on the ship for different heading angles. The vertical shear force and bending moment acting on a cruise ship in moderate to large amplitude regular waves are calculated using a body nonlinear time domain (TD) method based on strip theory. In order to validate the TD numerical method, the vertical responses of the cruise ship are calculated in small amplitude waves and are compared with Frequency Domain (FD) results. A good agreement is observed between the TD and FD results in small amplitude waves which show the validity of the TD method for calculation of the vertical ship responses in waves with different headings.