求教：ansys圆柱拉伸分析

RT：在学习ansys中，做圆柱的拉伸分析，是比照着书本来的但是却做不出来，请教一下。下面是我的命令流大家看看有什么问题，我用的是GUI可能命令流比较啰嗦，多谢了！！
/PREP7
K,1,-0.115,0,,
K,2,-0.115,0.0075,,
K,3,-0.065,0.0075,,
K,4,-0.06,0.005,,
K,5,0.06,0.005,,
K,6,0.065,0.0075,,
K,7,0.115,0.0075,,
K,8,0.115,0,,
L, 1, 2
L, 2, 1
L, 2, 3
L, 3, 4
L, 4, 5
L, 5, 6
L, 6, 7
L, 8, 7
L, 1, 8
!*
LFILLT,3,4,0.02, ,
!*
LFILLT,4,5,0.02, ,
FLST,2,10,4
FITEM,2,8
FITEM,2,1
FITEM,2,2
FITEM,2,3
FITEM,2,9
FITEM,2,4
FITEM,2,10
FITEM,2,5
FITEM,2,6
FITEM,2,7
AL,P51X
SAVE
FLST,2,1,5,ORDE,1
FITEM,2,1
FLST,8,2,3
FITEM,8,1
FITEM,8,8
VROTAT,P51X, , , , , ,P51X, ,360, ,
SAVE
NUMCMP,ALL
SAVE

FLST,2,4,6,ORDE,2
FITEM,2,1
FITEM,2,-4
VADD,P51X
NUMCMP,ALL
SAVE
ESIZE,0.005,0,
MSHKEY,0
MSHAPE,1,3d
CM,_Y,VOLU
VSEL, , , , 1
CM,_Y1,VOLU
CHKMSH,'VOLU'
CMSEL,S,_Y
!*
VMESH,_Y1
!*
CMDELE,_Y
CMDELE,_Y1
CMDELE,_Y2
!*
SAVE
FLST,2,8,5,ORDE,8
FITEM,2,1
FITEM,2,9
FITEM,2,-10
FITEM,2,18
FITEM,2,-19
FITEM,2,27
FITEM,2,-28
FITEM,2,36
/GO
!*
SFA,P51X,1,PRES,-100E6
SAVE
/STATUS,SOLU
SOLVE
SAVE