model testing of large structure systems in a wave basin · model testing of large structure...
TRANSCRIPT
1M
AR
INTE
K
Mod
el T
estin
g of
Lar
ge S
truc
ture
Sys
tem
s in
a W
ave
Bas
in
Car
l Try
gve
Stan
sber
gM
AR
INTE
K /
CeS
OS
Tron
dhei
m, N
orw
ay
CeS
OS
Wor
ksho
p on
Ver
y La
rge
Floa
ting
Stru
ctur
es, T
rond
heim
, Nor
way
, 28-
29 O
ctob
er, 2
004.
2M
AR
INTE
K
Con
tent
s-
Ret
rosp
ecto
f rel
evan
t exp
erim
ents
in M
AR
INTE
K’s
Oce
an B
asin
:Fl
oatin
g an
d su
bmer
ged
brid
ges;
floa
ting
brea
kwat
ers
Long
pip
elin
esLN
G te
rmin
als
in s
hallo
w w
ater
Offs
hore
floa
ting
plat
form
sEl
astic
test
mod
els
(cat
amar
an)
-Tr
unca
tion
of te
st m
odel
set
-up
-Su
mm
ary
with
com
men
ts o
n pa
rtic
ular
issu
es
3M
AR
INTE
K
The
MA
RIN
TEK
Oce
an B
asin
(50m
x 8
0m x
10m
)
4M
AR
INTE
K
5M
AR
INTE
K
Floa
ting
brid
ge m
odel
test
s I (
1989
)
6M
AR
INTE
K
Floa
ting
brid
ge m
odel
test
s II
(198
9)
7M
AR
INTE
K
Subm
erge
dtu
be b
ridge
mod
el te
sts
(198
9)
8M
AR
INTE
K
Floa
ting
brea
kwat
er m
odel
test
s (1
986)
9M
AR
INTE
K
Floa
ting
brea
kwat
er m
odel
test
s (1
986)
)
10M
AR
INTE
K
VIV
of p
ipel
ines
in lo
ng, f
ree
span
s
3-D
Mod
el te
sts
(L/D
> 2
00-3
00)
To s
tudy
mul
timod
e os
cilla
tions
in fr
ee-s
pann
ing,
ca
ble-
dom
inat
edpi
pelin
es (l
ower
mod
es m
ainl
y)
11M
AR
INTE
K
VIV
of p
ipel
ines
in lo
ng, f
ree
span
s:
3D m
odel
test
set
-up
in th
e O
cean
Bas
in
12M
AR
INTE
K
Long
mar
ine
riser
m
odel
test
s:
13M
AR
INTE
K
Mod
elte
stin
g of
LNG
term
inal
s in
sha
llow
wat
er
14M
AR
INTE
K
Snøh
vit:
Plan
ned
barg
ein
-doc
king
at M
elkø
ya (2
005)
(Fig
ure
by S
tato
il / N
eptu
n)
15M
AR
INTE
K
Snøh
vit:
Plan
ned
mod
elte
stin
g of
in-d
ocki
ng (2
004)
(s
chem
atic
al il
lust
ratio
n)
Barg
edo
ck
inci
dent
wav
es H
≈0.
2m (f
ull s
cale
)
Larg
e sc
ale:
1:2
0 du
e to
sm
all m
argi
ns a
nd s
mal
l wav
esBa
rge
mot
ion
mea
sure
men
ts a
ccur
acy:
±0.
001m
(mod
el s
cale
)
154m sl
opin
g bo
ttom
mod
el
16M
AR
INTE
K
Snøh
vit:
Sim
plifi
ed d
ock
& s
lopi
ng b
otto
m m
odel
17M
AR
INTE
K
Offs
hore
floa
ting
plat
form
stu
dies
: Ve
rific
atio
n te
sts
-Åsg
ard
B(s
emi)
18M
AR
INTE
K
Wav
e am
plifi
catio
n w
ithin
arr
ay o
f fix
ed v
ertic
al c
olum
ns(T
ests
: Nor
skH
ydro
/ N
TNU
/ M
AR
INTE
K.
Fur
ther
rese
arch
: Wav
eLan
dJI
P)
19M
AR
INTE
K
Elas
ticte
st m
odel
, cat
amar
an(H
erm
unds
tad,
199
5)
20M
AR
INTE
K
Phot
o of
ela
stic
cat
amar
an m
odel
21M
AR
INTE
K
Mod
el te
stin
g of
larg
e sy
stem
s in
a b
asin
:Tr
unca
tion
may
be
nece
ssar
y
-Dee
pw
ater
sys
tem
s (v
ertic
al tr
unca
tion)
, e.g
. 300
0m d
epth
:
22M
AR
INTE
K
Mod
el te
stin
g of
larg
e sy
stem
s in
a b
asin
:Tr
unca
tion
may
be
nece
ssar
y
-Dee
pw
ater
sys
tem
s (v
ertic
al tr
unca
tion)
, e.g
. 300
0m d
epth
:
Gen
eral
prin
cipl
e-h
ybrid
ver
ifica
tion:
-Mod
el s
houl
d re
flect
sam
e 6
DO
F flo
ater
mot
ions
(WF
+ LF
) as
full
dept
h-I
nteg
rate
test
s w
ith n
umer
ical
mod
el (o
ff-lin
e)
23M
AR
INTE
K
2000
m
-Wid
e sy
stem
s (h
oriz
onta
l tru
ncat
ion)
24M
AR
INTE
K
Com
men
ts o
n pa
rtic
ular
issu
esA
) Som
e to
pics
of p
rese
nt &
furt
her e
xper
imen
tal i
nves
tigat
ion:
•Effe
cts
from
dire
ctio
nal(
shor
t-cre
sted
) wav
es –
spat
ial d
ecor
rela
tion
•Mul
ti-bo
dy h
ydro
dyna
mic
s
•Ter
min
als
in s
hallo
w w
ater
: Low
-freq
uenc
y w
ave
exci
tatio
n de
pend
stro
ngly
on
wat
er d
epth
•In
high
and
ste
ep w
aves
: H
ighe
r-ord
er d
rift f
orce
s (v
isco
us;
nonl
inea
r hul
l geo
met
ry; e
ffect
s fro
m c
urre
nt)
Air-g
ap –
deck
impa
ct –
gree
n w
ater
–sl
amm
ing
•Joi
nt w
ave,
cur
rent
& w
ind
load
s &
resp
onse
s
•Hyd
ro-e
last
icity
25M
AR
INTE
K
B) L
ab-r
elat
ed is
sues
/ ch
alle
nges
:
•Com
mon
pro
cedu
res
for m
odel
ling
and
docu
men
tatio
n of
dire
ctio
nalw
aves
•Bas
in re
-refle
ctio
ns d
ue to
larg
e m
odel
(wav
e ab
sorp
tion;
siz
e of
bas
in)
•Spa
tial h
omog
enei
ty o
f wav
e fie
ld
•In
shal
low
wat
er: A
void
arti
ficia
l (”p
aras
itic”
) LF
wav
es
•Mar
ine
oper
atio
ns w
ith s
mal
l mar
gins
& s
mal
l wav
es: L
arge
sca
lem
odel
ne
eded
•Con
tinuo
us d
evel
opm
ent o
f effi
cien
t & w
ell a
ccep
ted
met
hods
for
trunc
atio
n of
mod
els,
and
inte
grat
ion
with
num
eric
al s
imul
atio
ns