Wave Forces on a Restratned Shtp tn Head-Sea Waves 
The least-square condition leads to the linear equation system 
80. -(, 8.) IO°(e, 6.) 
n Be | - 
m i 
> Hea Das Or or 
m= 0 i=l 
(102) 
= 80 (r, 8.) 
- vacos@, n i 
= p ) GO6,6.<e i “Ey ee aor 
1 Or 
i=1 
dS,5 00 
for r=a. n goes from zeroto M. We have set ae bE re 
inl 102). 
N is chosen so that N > 3/2 (M+ 1). It was found that 
N= 10 gives satisfactory results. 6; have been chosen as 
us Lanne al! 
ae one Ghph ee a Gg eae 3 NN (103) 
(102) can be solved by standard methods. S, in (96) are 
evaluated in the following way. We introduce (101) in (98) and 
write S, as 
5 - vr cos@ 
Si c=) (= 2 resin) 6) “é 
a Z 2 
ee ob ae 
+2 f ee een cos@) e ls ai 
z a 
0 ae a 
A | 2 
3 | du uv -r sin 0 ae 
0 
i 0 
5 (23/2 sin(ur cos@) e 
(e+ (104) 
+ O(B,) for” 0. =< ee" x72 
1803 
