Linear hydroelastic analysis of high-speed catamarans and monohulls

A linear method for hydroelastic analysis of high-speed vessels is presente d. It is based an a modal approach and represents a generalization of the h igh-speed strip theory of Faltinsen & Zhao (1991a). Hydrodynamic interactio n between the hulls of catamarans is properly accounted for by utilizing sy mmetry. It is demonstrated how an integral theorem can be utilized to find the hydrodynamic force for general made shapes. Theoretical predictions of ship motions and sectional forces and moments are compared with experimenta l data for a flexible high-speed catamaran model in regular waves. The infl uences of hull interaction and the application of the integral theorem are demonstrated.