; eo EXP. o EXP. 
6 Serr 1.6 5 Baa 
—— BT Cit «nee 
¥ a BT 
f ‘ 
1.2 —— te \ 
/ 2 FOX \ 
° \\ 
1.0 / <lOF © \\ ——_ 
z= beret z ~ \y ° /.-—~ 
=zF z = ye 
O NX 08 K 6 08 \ f 
/ 
4 Gj 
0.6) vA 0.6 WR i 
a ie dro ig 
0.4 Pg NT eee / ov St 
oa ~~ 
o 
@2 é FULL SCALE 0.2 
20 25 (SEC) 
0.4 (Hz) 
MODEL SCALE 
te) 
1.61.41.2 10 08 0.6 
WAVE PERIOD 
o EXP. 9 EXP. 
—— AR —— AR 
180 Ere tM 180 = Ef 
aT Dia 
—~ 90 — 90 Oe 
w —-3—" 3 
one) FULESCALE Ree pines w © ° oe 
es a 5 1 ~~ 20 "7-25 (SEC) < oa 15 5 en SaISEE} 
ory 16 1497" 10 08 SENG SS Y (ora (Hz) a nA 0.6 2 0.4 (Hz) 
1.2 WAVE PERIOD 3 y : w WAVE PERIOD MODEL SCALE 
- ° ° -9| 
30 MODEL SCALE ~~ 
-180 -180' 
HEAVE RELATIVE WAVE 
4 
> «EXP. 
1.2 exe x —— AR 
° —— 
eee BT 
1.0 ———— Bi uso Meee 
° oa 
ss < 0.8 0.8 7 
ih" ° 
<a — 
O06 = 08 eee 
Spee oy oe 
0.4 Poe aeeses Crsi0:4 ae 
=) -_--——-- ~~" 7.6 
Pe Meaney ae 7 y 
0.2 ee 0.2 a, 
- FULL SCALE FULL SCALE 
‘| 10 20 25 (SEC) ‘ 25 (SEC) 
1.61.4121.0 08 0.6 0.4 _ (Hz) 1.61.41.21.0 08 0.6 0.4 (Hz) 
WAVE PERIOD MODEL SCALE WAVE PERIOD MODEL SCALE 
BEXP? > EXP. 
= “ a8 
= -— BT 
180 180, ANG in 
NY 
90 30 oe 
m a ries errs wowere 
wo FULL SCALE WS a ee =. ~~» FULL SCALE 
® Wo 15 20 25 (SEC) fw ; 15 20 25 (SEC) 
z= (/1.61.41.2 1.0 08 0.6 0.4 (Hz) ae 08 0.6 0.4 (Hz) 
“ WAVE PERIOD MODEL SCALE “J WAVE PERIOD MODEL SALE 
a ee a =o 
© ° 
O ° 
-180 -180 
PITCH 
FULL SCALE 
20 25 (SEC) 
0 
1.61.41.21.0 08 (Hz) 
0.6 0.4 
WAVE PERIOD MODEL SCALE 
SURGE 
Fig. 7.18. Frequency response characters by different methods and 
through experiments in regular waves. 
(From Oda, Yamanouchi, et al.59) 
245 
