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how to applying Torque onto ellipsetical tube by using rigid regions

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Chomtid

Aerospace
May 13, 2011
4
US
Having a hard time in applying torque on ellipsetical tube? I don't know using rigid regions is a correct choice or not. I Have been running this test through the below command for a week. Hope anyone can take me out of the darkness.
/filename,Ellipsetical tube made of ALUMINUM
/title,Aluminum Tube (SHELL99)
/prep7
et,1,shell99
mp,ex,1,200e9
mp,prxy,1,0.3

keyopt,1,2,0
keyopt,1,3,0
keyopt,1,4,0
keyopt,1,5,0
keyopt,1,6,0
keyopt,1,8,0
keyopt,1,9,0
keyopt,1,10,0
keyopt,1,11,0
r,1
rmodif,1,1,6,0,0,0,0,0
rmodif,1,13,1,0,2.5e-3,1,0,2.5e-3

LOCAL,11,1,,,,,,,0.5
CSYS,11
K,1:40,1,0:360:9

K,41:80,1,0:360:9,5

FLST,3,11,3
FITEM,3,1
FITEM,3,2
FITEM,3,3
FITEM,3,4
FITEM,3,5
FITEM,3,6
FITEM,3,7
FITEM,3,8
FITEM,3,9
FITEM,3,10
FITEM,3,11
BSPLIN, ,P51X
FLST,3,11,3
FITEM,3,11
FITEM,3,12
FITEM,3,13
FITEM,3,14
FITEM,3,15
FITEM,3,16
FITEM,3,17
FITEM,3,18
FITEM,3,19
FITEM,3,20
FITEM,3,21
BSPLIN, ,P51X
FLST,3,11,3
FITEM,3,21
FITEM,3,22
FITEM,3,23
FITEM,3,24
FITEM,3,25
FITEM,3,26
FITEM,3,27
FITEM,3,28
FITEM,3,29
FITEM,3,30
FITEM,3,31
BSPLIN, ,P51X
FLST,3,11,3
FITEM,3,31
FITEM,3,32
FITEM,3,33
FITEM,3,34
FITEM,3,35
FITEM,3,36
FITEM,3,37
FITEM,3,38
FITEM,3,39
FITEM,3,40
FITEM,3,1
BSPLIN, ,P51X

FLST,3,11,3
FITEM,3,41
FITEM,3,42
FITEM,3,43
FITEM,3,44
FITEM,3,45
FITEM,3,46
FITEM,3,47
FITEM,3,48
FITEM,3,49
FITEM,3,50
FITEM,3,51
BSPLIN, ,P51X
FLST,3,11,3
FITEM,3,51
FITEM,3,52
FITEM,3,53
FITEM,3,54
FITEM,3,55
FITEM,3,56
FITEM,3,57
FITEM,3,58
FITEM,3,59
FITEM,3,60
FITEM,3,61
BSPLIN, ,P51X
FLST,3,11,3
FITEM,3,61
FITEM,3,62
FITEM,3,63
FITEM,3,64
FITEM,3,65
FITEM,3,66
FITEM,3,67
FITEM,3,68
FITEM,3,69
FITEM,3,70
FITEM,3,71
BSPLIN, ,P51X
FLST,3,11,3
FITEM,3,71
FITEM,3,72
FITEM,3,73
FITEM,3,74
FITEM,3,75
FITEM,3,76
FITEM,3,77
FITEM,3,78
FITEM,3,79
FITEM,3,80
FITEM,3,41
BSPLIN, ,P51X

l,1,41
l,11,51
l,21,61
l,31,71

LGLUE,ALL
AL,1,5,9,10
AL,2,6,10,11
AL,3,7,11,12
AL,4,8,12,9
AGLUE,ALL

lsel,s,length,,1.211,,,0
lesize,all,,,20
lsel,s,length,,5,,,0
lesize,all,,,100
allsel
amesh,all


K,9999998,0,0,0
K,9999999,0,0,5
nkpt,,9999998
nkpt,,9999999

nsel,s,loc,z,0
d,all,ux,0
d,all,uy,0
d,all,uz,0

allsel
nsel,s,loc,z,5
ET,2,MASS21
!*
!*
KEYOPT,1,1,0
KEYOPT,1,2,0
KEYOPT,1,3,0
!*
!*
R,7,1,1,1, , , ,
type,2
real,7
e,2

 
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