ANSYS中给Beam188单元施加位移计算后发现移动方向不正确,请问如何解决? 20
我给一根梁的两端各施加了沿着Y轴负方向的相同位移,按道理来说整根梁应该沿着Y轴的负方向移动,但实际情况是产生了X正向的位移,变形图如图所示,蓝色的线条表示变形后的形状,白色的虚线是原始形状。请问是什么原因,我贴出了我的命令流,恳请高人指点,不胜感激!
!***********************
/PREP7
!***********************
!******Element Type******
ET,1,SOLID185
ET,2,BEAM188
!************Sections************
SECTYPE, 1, BEAM, CSOLID, , 0
SECOFFSET, CENT
SECDATA,0.0051,0,0,0,0,0,0,0,0,0,0,0
!************meshing************
MP,DENS,1,7800
MP,EX,1,2.06e11
MP,NUXY,1,0.3
!************Modeling************
!*Creat a cable
r=0.0051
length=0.05
k,1,0,r,0
k,2,0,r,length
!***line***
lstr,1,2
!************meshing************
lATT,1,,2,,,
LESIZE,ALL,0.001, , , ,1, , ,1,
LMESH,All
!************Loads************
DK,1, ,r, , 0,ALL,UY, , , , ,
DK,2, ,r, ,0,ALL,UY, , , , ,
!***********************
/SOLU
!***********************
solve
!***********************
/POST1
!***********************
SET,FIRST
PLDISP,1
PLNSOL, U,SUM, 0,1.0
/ESHAPE,1.0