Performance Simulation - Part 4
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8/10/2019 Performance Simulation - Part 4
1/57
hti 7/w
nece uatbeda ca/rutodalshs]5/b.ln
term
ht
/ - ,J
eKio
Cantilever
Beam
Exam
Preprocessing:
efining
he
problem
depth
=
10cm
width
-
5cm
load
=
10/ 000N
E
=
200
cpa
(s ee. I )
Theprobiemhat smodelleds a classic antiieveream:
theother
end
fixedat oneendanda vertical oadapplied
o
*
i{o
/
l
|+6
$=
zn+
/:
Th
beam
has h
ollowing
dimensions
nd
DroDerties
.r"roR'ANrNote.that
t is
he esponsibility
fthe
user
o ensure
hat
a consistent
etofunits
ar
usd
or
the
problem;
hus
making
ny
conversions
here ecessaryl
Begin
y
giving
:e
exampre
itle
In the'utility
menu
ar'serect
he'F
e
menu
nd
he
change
Title,
submenu.
lect'OK'
hen
one.
I9l.^""b.':1 :il,,y:
are
going
o
solve
will
bedeEned
ya
number
fvariables.
hese
may
beentered
oyon
ot two
apDroaches
I
Thequickest
ay
s
o
enter
hem
n the
ANsys
input
window
Move
our
mouse
o the
ower
halfofthe
window
nd
hen
eft
click
len
tlpe n
ea"l
oiifre
olti-*tg
lnes.
acl
one
s
completed
y
hitting
Enre
or
Rerurn.
ll lengths
re
given
;
;nr.
'-'"
length=2
0OO
dep h=100
nldth=50
xsecr=deprh*width
rnerr iaz= (r idth*deprh**3)
/ /12
Notice
hat
by
using
ariables
ike
this,
t is very
easy
o
set
up
a
paramet.ic
escription
fyour
2
Altenatively,
hese
adables
y
be entered
n
the
utility
menu
bar,/
?aramaters,/,scarar
i;,r:f l"::
",
1;::
^lhis
brings
p
aoialog
ox n
whicL
h"r" par.-J*,
*"
t" entered ote
i ,q
,wq
r'uJL
rre(
on
Accept
o
save
our
changes
efore ou
cl ick
on
,Close,.
T\e overal l eornetr)
s
defined
n
nNSyS
usilg
keyDoi1ts
hich
simply
peci$ ariousp-inc.po,
-oordlnoles
o
oLlrine
he
bodv
for
this
oeam ramp.e,
nese
eypolnrs
i l l
be he $o ends frhe
beaml
2/101
3 39
PN1
-
8/10/2019 Performance Simulation - Part 4
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Cdtilever
BeamExanple
.
Start hePrepT reprocessor
y
seiectmg
preprocesso/
n
the
ANSYS
Main
Menu
.
From he
Preprocesso/ enu,
eiect
Create,
(ullder
he
-Modeline_'
ide)
.
fhen select eypoints
rorn
his'CreaLe
enu
.
Select n Active
CS...'on
he
Ke,?oints'
menuThispermits
ou
to defioe eypoiotsr
tbe
acdve
oordinate
ysrem.
.Inthewindowthatappears,enterkeypointnumber'l ' intheappropdatebox,andenterthex.y,z
coordinates:,0,0n heir ppropnareoxes.
l'{IcFAFpiy'
ro accepr
ha;
oL
have
yped.
.
Enler he-second
elpoint
by ryping
2,
and1e[gth,0,0
n
the heir
appropriate
oxes.
.
Clickon OK
ro indicare
har
1ou
are inished
nreringelpoints.
Y,or-r
ar now iist
the enlered
eypoints
o make
sure
you
have
done
his step
corlectly,
by selecting
'Utility
menuba
'List',4(e)?oints'.
There
are
wo optionshere;
selecting
eitler
one will
give
you
th*e
coordinatesfthe ke]?oints ou
haveenteredthese
re0,0
and20OO,O
inceength=2obo).'
To
plot
hse eypoints
n the
graphics
indo.w,
hereare
wo methods:
1. Enter he ollowing wo commandsANSYS
input
windo,r|
/pnum,
kp/
1
kpLot
The irst
ofthese ommands
urns
hekypoint
umbering
n
(assuming
hat
t'snot
already
n
and
hesecondommard lots
hekeypoints.
2. In
the
Utility
menu
ax', elect
Plotctrls,
enu,hen
Numbering...'
lickon he
button
eside
'Keypoint
umbers'o hat
t changes
olour,
nd ays'On'beside
t.
Clickon'OK'and
he
box
will close
nd hekeypoinls
,ill
be
plotted
ith hek
numbers.
for
his
exampl,
he irst
one
may ehidden
n he riad
ymbol
t 0,0,0.)
o replot
t anyime,
select
Utility
menu
ba/,rylot'/replot'.
You
mustnowconnect
he wo
keypoints
ogether
o forma line
.
li$t close
he astmenu
hat
were
used
o create
hekeypoiots
y
double licking
n
theupper
left-hand orner
fthe menu.
This
will return
ou
o
the reate
menu,.
.
Selecthe
Lines'
tem
under
-Lilles-,)n
thisE]enu.
.
Select
Straight ine'.
.
Use
he
mouseo
piak
he
\ro ke)?oints
n
the
graphics
illdow.
Theywill
bemarked
y a small
yeiiow
boxwhenpicked.
Click
on
OK'
in
the
Create traight
ioe,window
when ou
hive
picked
he wo
keypoints
. Now closehe Lines' nd Create' enus searlier escribed.
o
It is
nownecessary
o create
ome
lements,a/n
his ine.This
s called
Meshtrg'.
ANSYS
irstneedso
know
whatkind
ofelmentso
use
or our
problem:
.
Select'Elementype'in
he
?reprocessoi
menu.
.
Select
AddEdit/De1ete.
'
.
Click n he'Add...'button
n
the,Element
yoes,window
.
Select 'Bearn ' , '2Delast ic 'andcl ickon'OK,youshouldsee,TypetBEAM3,inthe,Element
Typeswindow.
.
Click
on
Optioos
'
. In the'BEAM3elementypeoptions,window,lickon he
op
button
K6),
and
select
Include
Output'.
.
Click
on
OK'
.
Click
on'Close'in
he
Element
Tvoes'vr'indor
.
htrp://vsv.nece.ualb.rt .cttuto.ialvdsys/bab,6am.htn
2/nA13:39
M
-
8/10/2019 Performance Simulation - Part 4
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http:/
w
mec. ualberr.ca_/tutotd/dsysileam//bern
hrr
.
.
Ciose he
Element
ype'
menu.
YoLl
need
o speci4' eometric
roperties
or your
elements
.
Select
Real
Conslants...'jn
he
?reprocessoi
menu.
.
Cl ick
n Add.. '
.
Select
Type
1 BEAM3,
and
click
on OK'.
.Inthe'RealConstantsforBEAM3,window,enterthefouowinggeometricproperties(using
paramerersharwereenreredr hebeginringfour
example).
AREA:
XSECT
IZZ.
inert iaz
HEIGHT:
depth
.
Clickon
OK
.
Clickon
Ciose,n the
Real
Constants'
indow.
You
hen
eed
o sirecify
arerialropenies:
.
Select'Material
rops,inhe preprocessor'enu..
Select'Isotropic
,under
-ConstantJ
.
Click
OK'
n the
Isotropic
aterial
roperties,
window
o select
aterial
umber
.
.
In the
rindow
hat
appears,
here
reminy
properties
hat
may
be
specfiea.
he
ones
f
concem
re:
X:
200000
NUXY:0,3
.
Set hese
ropefties
nd
click
on,OK,.
.
Closehe
Material
rops,menu.
Jhe
as]
-s19P
e&Ie,I119_shi gsto tellANSYS owbig heelements
hould
e.Let,s
make
heelement
length Ocm
o
begin
with;
.
Select'Shape
Size'under
Meshing_,in
the
preprocessor,enu.
.
In the
Shape-&5ize'-rhenu.
elect
Giobal
Etem
Size
.
'-{.n
S-
c.,,&a
/Gld.-
- -
r^p
.
Give
a'SIZE
of2OO
nd
click
onOK
d
.
Closehe
Shaoe*-Si-zd
menu.
Y.zr- o"t{-
Now
you
can
eli
AliSyS
to mesh
he
beam:
.
Selecr
Mesh'
nder
-Meshing- n the
preprocessoi
menu.
Selecr'Lines'
n rhe
Mesh'
menu.
.
Use he
mouse
o
pick
the
ine n
the
graphics
indow.
t
wilj
whenpicked.
.
Click
on'OK
n
rhe,Mesh
ines
Bor
.
Close
he
Mesh,
menu
Plot
your
elements
y
.
SelectNumbering,
n
the
plotctrls,
Menu.
.
Turn
off
Keypo:nr
umbering
o har
he
plor
does
o,
become
onirsins
.
LllcK r tne tem & Arrrjb umberingox.and elecrlemertnumber
.
Click
on
OK,
.
From
he
Plot'
menu,
elect
Elements
and
you
will
then
see
he
eiements
lotted
n
multiple
colours,
ith
their
element
umbers
be
surrounded
y
a
yellow
box
2/5/01
:39 M
-
8/10/2019 Performance Simulation - Part 4
4/57
Codt
.ver
E@
Exhple
hltp:/ hv.mece.ualbeda
ca/tutodats/ets,/bm/b.sn
hh
i*i-1f
of ,n.
r".ults
will
begiven
by node,t would
be a
good
dea
o look at how
he nodes
re
.
Selectlumbedng'
rom
he
plotctrls,
menu, nd
um on
node
numbedng.
.ou
will
see hat
he
plot
becomes
erycluttered
ith
numoers.
.
To see
henodes
ndnode
numbers lotted
y hemselves,
elect
Nodes'
from
he
p1ot,
menuandyouwill beableo seehow henodes renumbered.otice
hat
hey
arenot
necessa.lly
numbered
rom
eft
o right.
Save
he
model
at his
ime,so
fyou
make
omemistakes
ater
on, you
wili
be able
o come
ack
o
l1ns
omt;
.
Select
UtilityMenuBarTFile'/,Save
s
..
.
At
the op.
f the
window
hat appears,.ou
wlll
see
.
db,
preceeded
y a directory
ame.
Change
the
I
to
whatever
ame
ou
want,
say
modeli,so
that
he
box now
contains
modell.db,
preceeded-by
fuli directory
ame.
The
db s mportant,
o
make
sure
ou
nclude
t.)
.
Click
on'OK'.
You have
now
defined our
model.
t is now
ime o
apply he
oad(s)
nd
constraint(s)
nd
solve
he
the resulting
ystem
fquations.
Solution
Phase:
ssigning
oads
and
Solving
close
he
Preprocessor'
enu
and
openup
h'solution
menu
Iiom
the
same
ANSyS
Main
Menu,).
First.you.must
eli
ANSYShow you
want
t to
solve his
problem
Select
New
Analysis,
ndensure
tl9
llgj9.il fgl-aTdr,and
)ick'OK,;.e.youaregoing
;
do astaticanatysis
n hi
beam
sapposed
to ri djiianiic
-anaiysiir,
Toi
example.
Now
you
must
apply
omeoads
andconsfaints:
.
Select
Appiy
nder'-Loads-
ir lr
.
We
will stad
with
constraints,
o select
Displacemellt
>'
.
Select'On
odes,
.
Use.themouse
o
pick
he
node
at 0,0 n
the
graphics
indow.
.
Click
on
OK' n the
ApptyU,ROT,window.
.
Choose
hat
deglees
ffreedom
are
o beconstrained.
n this case,
ou
havea calti]everedbeam, oallDOI,Sare
constrained
t hisend
.
Select'All
DOI'
andclick
on,OK'. you
will
see,some
riangles
n the
graphics
indow
indicaring
heconrraints.
he otation
onrraint
s marked
riorange.
n"d
le displacernenr
constraints
re n
b1ue. ou
maynot
beable o
see he
otation
o-nstraint
ecause
fthe
angle f
Let'sget
a better
ook
at he
situation
efore
we apply
oad:
.
fLrrn
ffrhe
ode
"rnbering
Urility
men._r
ar
plorCrr
s,'Numberins
.
P
ot th_e
lemenrs
''Utilily
menu
bar
pior|tiemenl
s,)
.
we
wttl otate
hepictureo an sometric iew:Select'Utilitymenu a
,plotctrlsy?an,
Zoom,
l::l:i
-,ti,]n",*"09w
that
appears,
ou
havemany.controls.
ry
experimenting
ith
hem.By
lurnng
on he
dynamic
ode click
on he
button
beside
D;,namic
Mode,
o hat-it
urns
eilowj
you
can
use
he
mouse
o
drag he
mage,ranslating
nd otating
t
on ali
hree
axes
-
8/10/2019 Performance Simulation - Part 4
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8/10/2019 Performance Simulation - Part 4
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Cerilever Bed
Exanpic
htlp//w
nec
ualbfa..ttubiah/anryvtaD/bean.r@
.
Select'List esults'
n
herceneral
ostprocessor'eflu.
_
.
Select'SortNodes...'
.
Set
ORDER'
o
'Ascendirg
Order'
.
Leave
N{JMB'blank.
.
In the eftmost
fthe lists
beside
Item,Comp'elect
geometry,.
.
In
the
ght
ist
select.{ode
oc X'.
.
Click
on
OK'.
.( \
\ iJ. l
. " \
z
.{q
.
Select
Ngd4_:&ELon...'
iom
he'ceneral
ostprocesso/
menu.
.
Choose-66F
oEii6n' nd
Atl
DOFs'rom
h; Lstsn
the
List
Nodal
Solurion
indow.
"
$.'i
"',1"
"1
",
I
^
You
will
noticen
the egend
n thegraphics
indorvhat here s
t he
text'DSCA-)24
tlt: ;;
,"
the
displaceflent
caling
n other
words,
hedisplace.nents
n
the igure
ook 12. times arger
han
they
lgaily
are.You can
adjust
he
displacement
calingby selecting
Utility Menu
Ba//'PlotCtrls7'SMeTDisplacement
caling...'.
You
probably
ant o know
Lhe
crual
i>piacements
frhebeam
. Closehe PlotResults'menu.
.
Ciick
n
OK.
Howdo hese
umbers ompare
ith
expected
nalltical
esults?
Thenodalesults
ill bedisplayed.
ode2 will
bedisplayed
fter
& 3- i.
This
ANSYS
umbershe
nodes. ode
2 is
at heend
fthebeam
at
x=2000).
fvou
nodes
efore ispiaying
henodal
olulion,
he esufts ould
ivebeen
isolaved
I
-
11,
which
oes or
correspond
o rhe
actual
hysical
ocation
frhenodis.
S
'
,p\ o-c
'
"^".'
. \
\
-
8/10/2019 Performance Simulation - Part 4
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8/10/2019 Performance Simulation - Part 4
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p-,vrat4-
IF
UeeDeflne
able>Add
UnderLab box,enter
endings nd ype
s,3under
election
CloseElementable
datawindow
List
elem able and click
on bendings
Note
the
results
ANY
COMMENTS???
-
8/10/2019 Performance Simulation - Part 4
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