strip Theory 



(a) reducing to one the number of LB values, because this parameter 

 does not practically affect the phenomenon; 



(b) reducing to three the number of Li values, the influence of which 

 can be notwithstanding easily studied; and 



(c) reducing to two the number of p values, which affects the phenome- 

 non according to an approximately linear law (see Sec. 2.4). 



As a consequence, the combination of the following parameters values have 

 been finally investigated: 



1 value of LB 7.00 i .k. ■ :;t ■ j-;/ v^ _ ;•:' -.^ :; <- 



3 values of L/i 17.50 23.75 30.00 



3 values of Fr 



4 values of c 



w 



2 values of p 



0.00 0.05 0.10 



0.804 0.836 0.872 0.900 



0.345 0.448 



Finally, the response spectra were calculated corresponding to spectra rele- 

 vant to wind speeds of 45, 50, 55, and 60 knots for ship's lengths of 180, 200, 220, 

 240, 260, 280, 300, 320, and 340 m. Each of these 36 cases can be identified by 

 means of a value of the ratio l/\* given in Table 2. 



Table 2 

 L/\* Values 



In short: In the first investigation 1008 cases were examined, studying the 

 influence of the different parameters on a ship of 200 m in length, assuming a 

 spectrum corresponding to 60 kn; in the subsequent investigation the influence 



823 



