ansys 中桥梁的移动载荷下的相关问题
我在ANSYS中进行桥梁的移动载荷分析，出现一下问题，希望大家帮忙解决一下file:///C:/Users/lenovo/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png命令流如下：
/FILNAME,12dile,0
!*
/NOPR
KEYW,PR_SET,1
KEYW,PR_STRUC,1
KEYW,PR_THERM,0
KEYW,PR_FLUID,0
KEYW,PR_ELMAG,0
KEYW,MAGNOD,0
KEYW,MAGEDG,0
KEYW,MAGHFE,0
KEYW,MAGELC,0
KEYW,PR_MULTI,0
KEYW,PR_CFD,0
/GO
!*
/COM,
/COM,Preferences for GUI filtering have been set to display:
/COM,Structural
!*
/PREP7
!*
ET,1,BEAM188
!*
ET,2,BEAM188
!*
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,210000000000
MPDATA,PRXY,1,,0.25
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,1,,7860
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DAMP,1,,0.02
SECTYPE,1,BEAM,MESH,4beam.sect
SECOFFSET,CENT,,,
SECREAD,'4beam','sect',' ',MESH
!*
SECTYPE,2,BEAM,MESH,3beam.sect
SECOFFSET,USER,150,-1,
SECREAD,'3beam','sect',' ',MESH
!*
K,1,0,0,0,
K,2,100,0,0,
K,3,2400,0,0,
K,4,2500,0,0,
LSTR, 1, 2
LSTR, 2, 3
LSTR, 3, 4
CM,_Y,LINE
LSEL, , , , 2
CM,_Y1,LINE
CMSEL,S,_Y
!*
!*
CMSEL,S,_Y1
LATT,1, ,1, , , ,1
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
FLST,5,2,4,ORDE,2
FITEM,5,1
FITEM,5,3
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,S,_Y
!*
!*
CMSEL,S,_Y1
LATT,1, ,2, , , ,2
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
FLST,5,1,4,ORDE,1
FITEM,5,2
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,23, ,100, , , , ,1
!*
FLST,5,2,4,ORDE,2
FITEM,5,1
FITEM,5,3
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,20, ,5, , , , ,1
!*
LMESH, 2
FLST,2,2,4,ORDE,2
FITEM,2,1
FITEM,2,3
LMESH,P51X
!*
/SHRINK,0
/ESHAPE,1.0
/EFACET,1
/RATIO,1,1,1
/CFORMAT,32,0
/REPLOT
!*
/PNUM,KP,0
/PNUM,LINE,0
/PNUM,AREA,0
/PNUM,VOLU,0
/PNUM,NODE,1
/PNUM,TABN,0
/PNUM,SVAL,0
/NUMBER,0
!*
/PNUM,ELEM,0
/REPLOT
!*
LPLOT
NPLOT
FINISH
/SOL
!*
ANTYPE,4
!*
TRNOPT,FULL
LUMPM,0
!*
FLST,2,2,1,ORDE,2
FITEM,2,102
FITEM,2,107
!*
/GO
D,P51X, , , , , ,UZ,UY, , , ,
ANTYPE,4
TRNOPT,FULL
TIMINT,ON
OUTRES,BASIC,ALL
KBC,1
TIME,1E-10
NSUB,4,8
SSTIF,ON
SAVE
/solu
timint,on
*DO,II,3,101,1
OUTRES,BASIC,ALL
TIME,(II-2)*0.05
NSUBST,5
FDELE,ALL,ALL
NSEL,S,LOC,X,(II-2)*23+100
F,II,FZ,-10e2
ALLSEL
SOLVE
*ENDDO
FINISH
在最后分析时timehist postproc 选择梁的节点节点时，图像趋势是一直下降，应该是下降到最低再回到零啊，为什么那？大神们看看，命令流有问题吗？
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