Wave Forces on a Restratned Shtp tn Head-Sea Waves 
By using (B-2), (B-3) and the convolution theorem we can 
now write 
(x,y,z) 2 - ———__— te | TL ve Pe) 
(D-2) 
ik_x+ vza+ i 7/4 sy : 
_e : i dia biucnpee 
tz -L/2 
Zw + Z2Up -4 
va 
By using an asymptotic expansion of the last integral (see 
Erdélyi (1956) ), (D-2) can be written as (64). 
1825 
