Marsich and Merega 



1.2 Parameters Selected as Characteristic 



As a result of what has been stated in the preceding paragraphs, the follow- 

 ing nondimensional parameters were selected as fundamental for describing the 

 phenomenon under investigation; 



Wave bending moment c = "^ ' 



pgBL3 

 Ship's breadth -5- / 



\ 



Draft -'i^ 



1 



Ship's speed Fr = v/]/l^ (Froude number) ' 



TTr • U4- J- 4. -K 4-- O '^AV ^AV +^AD ^AD 



Weights distribution p = 2 ^- 



Hull volumes distribution and waterline shape c^ 

 L 



LB 



Ship's length ^ ^^ ■ ■ ■ 



where, in addition to symbols already defined in Sec. 1.1, 



M = wave bending moment (t x m), 



B = ship's breadth (m), 



i = mean draft (m), 



A = waterline surface (m^), 



p = seawater density (t x secs/m^). 



To the purpose of systematically analyzing the influence on wave bending 

 moment of all these parameters, first the response operators were obtained for 

 1008 combinations of the following values: 



A first investigation was carried out calculating the response corresponding 

 to a sea spectrum relevant to a wind speed of 60 knots for a ship 200 meters in 

 length (see tables in Appendix). 



Subsequently, the result analysis allowed one to reduce the operators 

 number: 



822 



