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这是小弟算的一个简支梁的例子,可是不知道为什么采用m和mm单位,算出的最大位移相等,按道理来说是应该相差0.001倍的。
希望版主和众位大侠给与帮助。以下是我的命令流。
单位采用m时:
/PREP7
!*
ET,1,BEAM188
!*
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,2.1E11
MPDATA,PRXY,1,,0.3
SECTYPE, 1, BEAM, RECT, , 0
SECOFFSET, CENT
SECDATA,0.1,0.15,0,0,0,0,0,0,0,0
K,1,0,0,,
K,2,10,0,,
K,3,5,1,,
LSTR, 1, 2
CM,_Y,LINE
LSEL, , , , 1
CM,_Y1,LINE
CMSEL,S,_Y
!*
!*
CMSEL,S,_Y1
LATT,1, ,1, , 3, ,1
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
FLST,5,1,4,ORDE,1
FITEM,5,1
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1, , ,5, , , , ,1
!*
LMESH, 1
/UI,MESH,OFF
FLST,2,1,1,ORDE,1
FITEM,2,1
!*
/GO
D,P51X, , , , , ,UX,UY,UZ,ROTX, ,
FLST,2,1,1,ORDE,1
FITEM,2,2
!*
/GO
D,P51X, , , , , ,UX,UY,UZ,ROTX, ,
FLST,2,5,2,ORDE,2
FITEM,2,1
FITEM,2,-5
SFBEAM,P51X,1,PRES,100000, , , , , ,
ALLSEL,ALL
FINISH
/SOL
/STATUS,SOLU
SOLVE
FINISH
以下是采用mm时命令流:
/PREP7
!*
ET,1,BEAM188
!*
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,2.1E5
MPDATA,PRXY,1,,0.3
SECTYPE, 1, BEAM, RECT, , 0
SECOFFSET, CENT
SECDATA,100,150,0,0,0,0,0,0,0,0
K,1,0,0,,
K,2,10000,0,,
K,3,5000,1000,,
LSTR, 1, 2
CM,_Y,LINE
LSEL, , , , 1
CM,_Y1,LINE
CMSEL,S,_Y
!*
!*
CMSEL,S,_Y1
LATT,1, ,1, , 3, ,1
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
FLST,5,1,4,ORDE,1
FITEM,5,1
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1, , ,5, , , , ,1
!*
LMESH, 1
/UI,MESH,OFF
FLST,2,1,1,ORDE,1
FITEM,2,1
!*
/GO
D,P51X, ,0, , , ,UX,UY,UZ, , ,
FLST,2,1,1,ORDE,1
FITEM,2,1
!*
/GO
D,P51X, ,0, , , ,UX,UY,UZ,ROTX, ,
FLST,2,1,1,ORDE,1
FITEM,2,2
!*
/GO
D,P51X, ,0, , , ,UX,UY,UZ,ROTX, ,
FLST,2,5,2,ORDE,2
FITEM,2,1
FITEM,2,-5
SFBEAM,P51X,1,PRES,0.1, , , , , ,
ALLSEL,ALL
FINISH
/SOL
/STATUS,SOLU
SOLVE |