Download OFFPIPE Assistant User Manual 2.0.2

TM
OFFPIPE Assistant
A
Us
ser Manual
OF
FFPIPE Ass
sistan
ntTM
er Man
nual
Use
Ve
ersion: 2.0
0.2
Copyrightt © 2010-2015 offpipe
eassistant..com. All Rights
R
Rese
erved.
TM
OFFPIPE Assistant
A
Us
ser Manual
INDEX
1 FUN
NCTION ................................................................................................................. 1
2 INSTALLATIO
ON........................................................................................................... 2
3 HOW
W TO USE
E............................................................................................................. 3
4 FAU
ULT MESSAGES & NOTES
N
................................................................................. 16
5 TEC
CHNICAL SUPPORT
S
T & AUTHO
ORIZATION
N .......................................................... 17
TM
OFFPIPE Assistant
A
Us
ser Manual
1 FUNCTION
OFFPIP
PE Assista
antTM is a set of com
mputer aide
ed design software for offshorre pipeline
e
S-Lay. This software
e is used to
o provide optimized
o
configuratio
c
on parame
eters for S--Lay barge
e,
with little cost of calculating time. Efficie
ency and quality
q
of offshore
o
pip
pelay design can be
e
TM
M
improved by using OFFPIPE
O
A
Assistant
.
OFFPIP
PE AssistantTM has several featture functio
ons as follo
owing:
TM
M
1. Preciise laybarg
ge and stin
nger modelling. It is ea
asy for use
ers using O
OFFPIPE Assistant
A
to constru
uct precise
e model of laybarge and
a stinge
er, which ca
an be save
ed as mod
del file and
d
read by th
he software
e directly in
n the future
e. Users ca
an get rolle
er coordinates corresp
ponding to
o
the bendin
ng radius of
o pipeline specified by users rapidly.
r
This function makes it possible
p
to
o
build a layybarge mod
del databa
ase of a com
mpany, wh
hich will be called dire
ectly in ana
alysis. Thiss
type of model building improves the efficciency, pre
ecision and
d convenie
ence of lay
ybarge and
d
stinger mo
odel construction com
mpared witth that of OFFPIPE.
O
2. Finite
e element analysis fo
or normal pipe
p
laying. Just like OFFPIPE,
O
it is a bas
sic function
n
of OFFPIPE Assista
antTM to conduct sta
atic finite element
e
an
nalysis for normal piipe laying.
According
g to engine
eering para
ameters inp
put by use
ers, the sofftware can provide FEA resultss
rapidly. Due to focuss of softwa
are, OFFPIPE AssisttantTM doess not proviide module
es of initiall
bandon/reccovery and dynamic analysis.
a
laying, ab
3. Optim
mized layin
ng parame
eters selecttion. This function
f
allows userss to obtain optimized
d
laybarge configurattion with minimum
m
t
total
stress
s within th
he specifie
ed pipeline
e bending
g
radius an
nd tension scope, according
a
t FEA re
to
esults. Alth
hough the analysis results off
OFFPIPE AssistanttTM and OF
FFPIPE arre almost the
t
same, users are
e allowed to
t select a
calculating
g core within OFFPIPE AsssistantTM FEA
F
core and OFF
FPIPE FEA
A core. Iff
OFFPIPE core is ch
hosen, it sh
hould be no
oted that th
he calculattion time w
will increase
e because
e
e of operatting OFFPIPE.
of the time
By abovve function
ns of OFFPIPE AssistantTM, us
sers can get
g best layybarge con
nfiguration
n
for certain
n pipe layin
ng project, which is an
a importan
nt referencce for later design pro
ocedures.
1
TM
OFFPIPE Assistant
A
Us
ser Manual
2 INSTA
ALLATION
N
To startt to use OF
FFPIPE AsssistantTM, please:
1. Inserrt the installation CD into the CD
D-ROM drive, or unzzip the insta
allation pack file.
2. Copyy “OFFPIPE Assistan
nt” folder in root directory of insttallation CD
D or installation packk
file to hard
d disk of yo
our PC.
3. Inserrt the attacched hard lock into on
ne of USB port in you
ur PC.
4. Doub
ble click “O
OFFPIPE Assistant.ex
A
xe” icon in the folder to start the
e software.
OFFPIP
PE AssistantTM runs on
o PC with
h Windows XP or Win
ndows 7.
2
TM
OFFPIPE Assistant
A
Us
ser Manual
3 HOW TO
T USE
Fig. 3.1 Main interface of OFF
FPIPE AssisstantTM
Figure 3.1 showss the main
n interface of OFFPIPE AssisttantTM, which include
es 4 main
n
parts:
1. Main
n menu and
d tool butto
ons are in the top of window, which
w
are u
used to run
n importantt
functions of the softw
ware.
2. A tree
e view is in
n the left off interface, users can go to any part of the
e software by clicking
g
the corressponding ittem in the tree view.
3. In the right, the
ere is the operation window, which
w
is ussed to edit model, run analysiss
and view the resultss.
4. In th
he bottom is the desscription wiindow, it shows
s
som
me descripttions and guides forr
user.
TM
M
Brief prrocedure off running OFFPIPE
O
A
Assistant
is shown as followin
ng:
1. Edit or
o load pro
oject param
meters.
(1) Click “Project Parameters” in the tree
t
view, and click the
t buttonss to load / save yourr
project pa
arameters, or call Sttinger BuillderTM to build
b
your laybarge & stinger models. Iff
there is no
o project file to load, then go to
o the next step
s
to editt your proje
ect parame
eters.
3
TM
OFFPIPE Assistant
A
Us
ser Manual
Fig
g. 3.2 Load or
o save project parametters
al Parametters” in the
e tree view
w, and inp
put genera
al parametters of the
e
(2) Clicck “Genera
project in operation window:
Fig. 3.3 Inp
put general parameters
In which
h:
“Water Depth” ediit: Input wa
ater depth.
“Tension” edit: Inp
put tension
n of tension
ners.
4
TM
OFFPIPE Assistant
A
Us
ser Manual
“Water Density” edit: Input density
d
of sea
s water.
“Tangen
nt X” edit: Input X co
oordinatess of tangen
nt point be
etween barrge pipelin
ne arc and
d
stinger pip
peline arc.
“Barge Radius” ed
dit: Input pipeline
p
ben
nding radiu
us on layba
arge.
“Stingerr Radius” edit:
e
Input pipeline be
ending radius on stinger.
“Laybarrge Model”” edit: Choo
ose laybarrge model by clicking
g the button
n by side.
“Consid
der Roller Length” Checkbox:
C
Specify whether
w
to take rollerr support length into
o
account in
n analysis.
(3) Clicck “Pipeline
e Parametters” in the
e tree view
w, and inp
put pipeline
e parametters of the
e
project in operation window:
Fig. 3.4 Inp
put pipeline parameters
In which
h:
In “Gen
neral” Grou
upbox:
“SMYS”” edit: Inpu
ut yield stre
ess of pipe
e steel.
“Max Sttrain” edit: Input maxximum pipe
e strain allo
owed.
“Unit Le
ength” edit: Input leng
gth of unitss after sting
ger tip.
“Pipe Tyype” radiog
group: Select pipe tyype, single or pipe-in--pipe.
“Nonliea
ar” checkb
box: Determ
mine wheth
her to cond
duct nonline
ear analyssis. If check
ked, the “A
A”
and “B” ed
dits are used to inputt Ramberg
g-Osgood model
m
para
ameters. Please note
e nonlinearr
constitutivve model is valid onlly for OFF
FPIPE calc
culation core. Local ccalculation core onlyy
provide FEA with linear constittutive model.
d equation in moment-curvature
e form is:
Ramberg-Osgood
5
TM
OFFPIPE Assistant
A
Us
ser Manual
M
M
K
 A

M
K y My
 y




B
(4.1))
in which
2  SMYS
ED
2  SMYS
S I
My 
D
Ky 
I
π (D 4  (D  2t )4 )
64
(4.2))
(4.3))
(4.4))
where
K
Curvature;
Ky
Nominal yield curvaturre;
M
M
Moment;
My
Nominal yield momentt;
A
urvature fo
orm;
Ramberg-Osgood parameter in moment-cu
B
Ramberg-Osgood parameter in moment-cu
urvature fo
orm;
I
Th
he area mo
oment of in
nertia;
D
O
Outside
diam
meter of th
he pipeline;
t
W thickne
Wall
ess of the pipeline.
p
In “Pipe
eline” Grou
upbox:
“Pipe Dimension”
D
mension.
comboboxx: Specified pipe dim
“Outside diameterr” edit: sho
ow pipe outtside diameter.
“Wall Th
hickness” combobox
c
x: Input walll thickness
s of pipe.
“Outer Layer
L
1 Th
hickness off Pipeline” edit: Input thickness of pipe co
oat 1.
“Outer Layer
L
1 De
ensity of Piipeline” edit: Input de
ensity of pipe coat 1.
“Outer Layer
L
2 Th
hickness off Pipeline” edit: Input thickness of pipe co
oat 2.
“Outer Layer
L
2 De
ensity of Piipeline” edit: Input de
ensity of pipe coat 2.
In “Optional” Groupbox, pa
arameters are
a optional, if not specified
s
o
or specified
d as zero,
then a deffault value will be spe
ecified by the
t software.
“Young””s Moduluss of Pipe Steel”
S
edit: Input Youn
ng”s Modu
ulus of pipe
e steel. Deffault value
e
is 207000
0MPa
“Steel Density”
D
ed
dit: Input de
ensity of pipe steel. Default
D
value is 7697
70N/m3.
“Weightt in Air” ed
dit: Input pipeline weight per me
eter in air. If not speccified or sp
pecified ass
zero, this value will be calculatted automa
atically by the softwa
are.
“Weightt in Waterr” edit: Inp
put pipelin
ne weight per meterr in water.. If not sp
pecified orr
6
TM
OFFPIPE Assistant
A
Us
ser Manual
specified as zero, th
his value will
w be calcu
ulated auto
omatically by
b the softtware.
“Inertia Moment” edit: Inputt inertia mo
oment of pipeline
p
cro
oss section. If not sp
pecified orr
specified as zero, th
his value will
w be calcu
ulated auto
omatically by
b the softtware.
(4) Clicck “Run Sttinger Buillder” in the tree view, and click the buttons to ru
un Stingerr
BuilderTM to build yo
our laybarg
ge & stinge
er models.
Fig. 3.5 Call
C Stinger BuilderTM
2. Inputt analysis parameters
p
s and run the
t analysiis to get ro
oller supports coordin
nates.
(1) Click “Analysiss” in the tre
ee view, an
nd click the
e buttons to run the a
analysis, if user wantt
me parame
eters for an
nalysis, the
en just go to
t next ste
ep.
to edit som
“Single Analysis” button: Co
onduct static normal pipe
p
laying
g FEA for single case.
duct calcu
ulation of choosing best layin
ng parameters with
h
“Select Best” button: Cond
minimum total stresss.
asted and iteration times are sh
hown in “T
Time” and “Cycle
“
Num
mber” edits
s.
Time wa
7
TM
OFFPIPE Assistant
A
Us
ser Manual
Fig. 3.6 Run ana
alysis
eters for Se
elect Best” in the tree
e view, and input para
ameters for choosing
g
(2) Clickk “Parame
best laying parametters.
Fig
g. 3.7 Input parameters for select best
In which
h:
“Radiuss Scope” groupbox:
g
In this gro
oupbox, th
he first com
mbobox is used to specify
s
the
e
radius to be change
ed, which iss barge rad
dius, stinger radius, both or no
ot change. “Min.” and
d
8
TM
OFFPIPE Assistant
A
Us
ser Manual
“Max.” edit are used
d to input ra
adius scop
pe from wh
hich the best radius iss chosen. “Step”
“
editt
is used to
o input step
p length off radius change. Bes
st radius will show in “Best” edit in “View””
part when
n calculatio
on is complleted.
“Tension Scope” groupbox: In this grroupbox, th
he first co
ombobox iss used to determine
e
whether to
t change tension. “Min.” and “Max.” ed
dit are used to input tension scope from
m
which the best tension is chossen. “Step” edit is use
ed to input step lengtth of tensio
on change.
Best tension will sho
ow in “Bestt” edit in “V
View” part when
w
calcu
ulation is ccompleted.
“Parameters for Dynamic
D
An
nalysis of OFFPIPE”
O
groupbox: In this gro
oupbox, there is onlyy
one edit to
o input, wh
hich is “Min
nimum Sep
paration of the Stinge
er Tip Rolle
er”. Dynamic analysiss
is often co
onducted in OFFPIPE, which re
ecommend
ds that the roller on sstinger tip should
s
nott
contact th
he pipeline
e in static analysis.
a
T
This
is due to that the
e pipeline stress on stinger tip
p
roller is se
ensitive wiith the layb
barge movvement in dynamic analysis,
a
if the stinge
er tip rollerr
contacts the
t pipeline
e in static analysis, then
t
the pipeline stre
ess on it wiill increase
e greatly in
n
dynamic analysis
a
to
o exceed SMYS.
S
Use
er need to specify this “Minimu
um Separa
ation of the
e
Stinger Tip Roller” value
v
and the
t software will take
e this cond
dition into a
account an
nd only the
e
results in which the separation
n of stinger tip roller is greater that this va
alue will be
e take into
o
the compa
arison for select
s
bestt tension an
nd pipeline
e bending radius.
r
The
en user can input the
e
output ressult of OFF
FPIPE AsssistantTM in
nto OFFPIP
PE to run dynamic a
analysis forr checking
g
whether th
he result iss acceptab
ble.
“Calcula
ation Core” radiogrou
up: Althoug
gh the analysis resultts of OFFP
PIPE AssistantTM and
d
OFFPIPE are almo
ost the same, userss are allow
wed to se
elect a calculating core
c
within
n
ore and OFFPIPE
O
FEA
F
core. Here choo
ose calculation core
e
OFFPIPE AssistanttTM FEA co
PIPE. If OF
FFPIPE co
ore is spec
cified, OFFPIPE AssistantTM willl establish
h
from locall and OFFP
a new file named “CALC.da
at” in “DAT
TA” folder and a ne
ew file na
amed “CALC.out” in
n
T” folder in
n OFFPIPE
E directoryy, and then
n conductss analysis with these
e two files.
“OUTPUT
Users can
n check the analysiss result of OFFPIPE
O
by view th
he “CALC.o
out” file. If OFFPIPE
E
core is sp
pecified, th
he path of OFFPIPE.bat file ha
as to be specified byy clicking the button
n
beside “O
OFFPIPE.BAT Path” edit,
e
and th
he time con
nsuming off OFFPIPE
E conductin
ng analysiss
for one tim
me has to be estima
ated in “Intterval” editt. It should
d be noted
d that the calculation
c
n
time will increase compared
c
with local core bec
cause of the
t
time w
wasting of operating
g
OFFPIPE. If OFFPIPE FEA core
c
is spe
ecified, beffore analyssis, please
e start OFF
FPIPE and
d
ng interfacce by presss enter button,
b
the
en press A
Alt+Enter to
t transferr
enter main operatin
OFFPIPE from full screen
s
mod
de to windo
ow mode.
(3) Clicck “Calcula
ation Param
meters” in the tree view, and in
nput calculation para
ameters in
n
M
operation window. For
F the deta
ail of calcu
ulation para
ameters, please referr to Stingerr BuilderTM
9
TM
OFFPIPE Assistant
A
Us
ser Manual
user manual.
F 3.8 Inpu
Fig.
ut calculation
n parameterrs
When the checkb
box “Auto” below che
ecked, then
n default va
alue of “Prrecision” will
w be filled
d
into the precision
p
bllank autom
matically. Iff user wan
nts to speccify “Precission” value manually,
he just ne
eed to unch
heck the “A
Auto” checkbox.
3. View
w the result
(1) Click “View” in
n the tree view,
v
and select
s
wha
at you want to view, o
or just click
k following
g
t tree vie
ew.
nodes in the
10
TM
OFFPIPE Assistant
A
Us
ser Manual
F 3.9 Sele
Fig.
ect what you want to view
Fig
g. 3.10 View
w Best Radiu
us and Tension
(2) Clickk “Best Ra
adius and Tension”
T
in the tree view to view
w best radiu
us and tens
sion which
h
produce the minimum total stress if “Sele
ect Best” is
s conducte
ed.
(3) Clickk “Roller Supports
S
Co
oordinatess” in the tre
ee view to view
v
suppo
ort roller co
oordinates.
Fig
g. 3.11 View roller suppo
orts coordina
ates
11
TM
OFFPIPE Assistant
A
Us
ser Manual
If the analysis has
h
been run to generate
g
best
b
suppo
ort roller coordinate
es (the Y
coordinate
es of stin
nger tip ro
oller is low
west). The
e result will
w show in “Roller Supportss
Coordinattes” frame.. The coord
dinates here always refer to the
e B.O.P. (B
Bottom Of Pipe)
P
pointt
of pipe, which
w
is the
e lowest po
oint of pipe cross secttion.
(4) Click “Laybarg
ge and Stin
nger Config
guration” to
o view it.
Fig. 3.1
12 View layb
barge and sttinger config
guration
“Laybarrge and Stiinger Conffiguration” frame
f
will show the calculated
c
laybarge and
a stingerr
configurattion param
meters, succh as tange
ent point on
o the barg
ge, roller h
heights and
d length off
link beams. Where:
“Tangerrt X”: Tang
gent point between
b
p
pipeline
and
d horizonta
al plane orr the plane
e specified
d
by “Pipelin
ne angle” on
o the barg
ge, unit is meter.
“Link Le
ength”: Len
ngth of linkk wire betw
ween cente
er of pulleyy wheel on stinger A--frame and
d
the first sttinger section, and le
ength of puppiece bettween sting
ger section
ns, unit is meter.
m
“Stingerr Upchord Angle”: An
ngles of stinger upcho
ords, unit is degree.
“Barge Roller Height”: Rolle
er heights of
o support roller on la
aybarge fro
om bow to stern, unitt
is meter.
“Stingerr Roller He
eight”: Rolller heightss of supporrt roller on stinger fro
om bow to stern, unitt
is meter.
All the informatio
on about te
ensioners will show in bold. When
W
som
me error occurs, the
e
correspon
nding text output in “Roller Su
upports Coordinatess” and “La
aybarge an
nd Stingerr
Configura
ation” frame
e will show
w in red orr blue, whiich means the roller support is
s higher orr
12
TM
OFFPIPE Assistant
A
Us
ser Manual
lower than the pipe
eline, and “Laybarge
e and Stin
nger Configuration” fframe will show the
e
separation
n between roller supp
ports and pipeline.
p
Both “R
Roller Supp
ports Coord
dinates” an
nd “Laybarrge and Sttinger Configuration” frame willl
show fault message
es if the inccreased errror exceeds the “Ma
ax Error” a
and the pro
ogram can
n
not generrate a layb
barge and stinger co
onfiguratio
on by the given pipe
eline bending radiuss
within the max allow
wed error.
(5) Clicck “OFFPIP
PE Input File”
F
in the
e tree view
w to transsform the present en
ngineering
g
parameters to OFFP
PIPE input file to be calculated
c
by OFFPIP
PE. Click th
he button to save the
e
OFFPIPE input file.
Fig. 3.13 View
V
OFFPIP
PE input file
13
TM
OFFPIPE Assistant
A
Us
ser Manual
Fig. 3.14
4 View analy
ysis result
n the tree view to vie
ew the finitte elementt analysis result,
r
and
d
(6) Click “Analysiss Result” in
click the button
b
to sa
ave it.
(7) Click “View Ch
hart” in the tree view to view an
nalysis resu
ult by chartts.
Fig. 3.15 View chart
c
In which
h:
The chart in the middle of main interface is us
sed to outtput analyssis results,, variabless
olled by “X
X Axis” and
d “Y Axis” ra
adiogroup by right side.
shown can be contro
14
TM
OFFPIPE Assistant
A
Us
ser Manual
“Save Picture”
P
button: Save the chart as a picturre file.
“Import OFFPIPE
E” button: Induce
I
OF
FFPIPE an
nalysis results into th
he chart to
o compare
e
with the re
esult calcu
ulated by lo
ocal core. On
O the oth
her hand, this button can be us
sed to filterr
OFFPIPE output files, which are comp
plicated in format an
nd difficult to read by
b drawing
g
software. Users can induce an OFFPIIPE output file and then view
w the file filtered byy
checking the outputt file with the
t same name
n
in “F
FILTERED OFFPIPE
E” folder in OFFPIPE
E
Assistant directory.
“Max Sttress (MPa
a)” edit: Sh
how maxim
mum stress of analysis result.
(8) Click “View 3D
D Model” to
o view 3D model
m
of calculated profile
p
of pipeline and
d stinger.
3 model window,
w
“Ro
oller State”” checkbox
x is used to
o control w
whether to show
s
rollerr
In the 3D
support errors. Whe
en the rolle
er support is higher than pipeline, it show
ws red, wh
hen lower,
shows blu
ue, when the pipelin
ne B.O.P. is within the
t
roller support ad
djustable range,
r
the
e
support sh
hows green.
"Stress State" checkbox is used to control
c
whe
ether to sh
how pipelin
ne stress state. The
e
a the node
e in which total
t
stress
s > SMYS. Other colo
or means total
t
stresss
pipeline shows red at
< SMYS at
a this node
e. Here is stress
s
of Red
R > Yello
ow > Green
n > Sky Blu
ue > Deep Blue.
Fig. 3..16 View 3D
D Model
f
in the tree
e view can
n be directtly conductted from m
main menu
u and tooll
Some functions
buttons. Just
J
try it byy yourself.
15
TM
OFFPIPE Assistant
A
Us
ser Manual
4 FAULT
T MESSA
AGES & NOTES
N
Some fa
ault messa
ages may be
b encountered by users and notes
n
are liisted below
w:
1. A me
essage window as Fig
g. 5.1 show
ws.
Fig. 5.1 Fault
F
messag
ge window
How to
o solve: Make
M
sure to fill all the blank comboboxes and e
edits beforre clicking
g
“Calculate
e” button.
2. Softw
ware can not
n be startted or run.
How to solve: Please insert the attached hard lock into one
e of USB p
port in yourr PC.
3. Plea
ase note th
hat the local FEA core
c
of OF
FFPIPE AsssistantTM only prov
vides finite
e
element analysis
a
w
with
linearr constitutiive model. Nonlinea
ar model is valid only
o
when
n
OFFPIPE calculation core is specified.
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TM
OFFPIPE Assistant
A
Us
ser Manual
5 TECHNICAL SUPPORT
T & AUTH
HORIZAT
TION
For technical support and auth
horization of
o OFFPIP
PE Assistan
ntTM, please visit:
http://www
w.offpipeasssistant.com
or contactt:
support@
@offpipeasssistant.com
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17