ansys 三维模型施加局部载荷结果为什么差距非常大 求高手指教

/PREP7
!*
ET,1,SOLID186
!*
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,2.1e5
MPDATA,PRXY,1,,0.3
CYL4, , ,105,0,55,180
K, ,55,,80,
/VIEW,1,1,1,1
/ANG,1
/REP,FAST
LSTR, 4, 5
VDRAG, 1, , , , , , 5
LDELE, 5, , ,1
FLST,5,2,4,ORDE,2
FITEM,5,1
FITEM,5,6
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,5, , , , , , ,1
!*
FLST,5,2,4,ORDE,2
FITEM,5,3
FITEM,5,11
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,4, , , , , , ,1
!*
FLST,5,4,4,ORDE,4
FITEM,5,7
FITEM,5,-8
FITEM,5,10
FITEM,5,12
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,4, , , , , , ,1
!*
FLST,5,4,4,ORDE,4
FITEM,5,2
FITEM,5,4
FITEM,5,9
FITEM,5,13
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,4, , , , , , ,1
!*
MSHAPE,0,3D
MSHKEY,1
!*
CM,_Y,VOLU
VSEL, , , , 1
CM,_Y1,VOLU
CHKMSH,'VOLU'
CMSEL,S,_Y
!*
VMESH,_Y1
!*
CMDELE,_Y
CMDELE,_Y1
CMDELE,_Y2
!*
FLST,2,2,5,ORDE,2
FITEM,2,3
FITEM,2,5
!*
/GO
DA,P51X,ALL,
ASEL,S, , , 4
NSLA,S,1
NPLOT
NSEL,R,LOC,X,-5,5
NPLOT
*get,nnum,node,,count
FLST,2,207,1,ORDE,6
FITEM,2,5003
FITEM,2,-5009
FITEM,2,5174
FITEM,2,-5180
FITEM,2,7041
FITEM,2,-7233
!*
/GO
F,P51X,FY,4355
ALLSEL,ALL
FINISH
/SOL
VPLOT
/STATUS,SOLU
SOLVE
结果应小于120mpa我将载荷大小为901600N 分布到局部的节点上 是我载荷施加有问题还是材料设这有问题啊 着急了谢谢