Analyses of Multiple-Float-Supported Platforms in Waves 



6 pitch motion 



\ wave length 



<p roll motion 



o) frequency, rad/sec 



w dimensionless frequency = a>Vv ' /g 



FOR PROBLEMS OF HYDRODYNAMIC INTERACTION IN BEAM SEAS 



A waterplane area 



w 



A+ complex radiated wave amplitude ratio 



(o+e) 

 A+ diffracted wave amplitude ratio 



a incident wave amplitude 



B beam 



Cgg , etc added mass coefficient defined in Table 6 



C section contour 



F force or moment 



F^ m ',etc wave-exciting force (moment) derived from the radiation 

 of mode m 



4»«- n o„- dim e nSi o„ al e Xciting for ce defi „e d in Table 9 



G Green's function (source potential) 



g gravitational constant 



h wave elevation 



£ hydrodynamic moment arm 



K mean wave force or constant defined in Eq.(14) 



M integer, moment or inertial mass 



m number of mode of motion or sectional mass 



m" two-dimensional added mass 



N integer or two- or three-dimensional damping coefficient 



origin of the coordinate system 



p hydrodynamic pressure 



857 



