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发表于 2007-3-29 16:56 | 显示全部楼层 |阅读模式

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小弟不知如何对以下节点(是口字形柱,工字形梁和口字形支撑相交的节点)进行划分网格,请各位大侠指点一下!
附上本节点建模所用命令流,请各位大侠帮忙看看:
/PREP7

!*定义单元
ET,1,SOLID45
R,1,1
!*定义材料属性
mp,ex,1,2.06e+11 !Q235钢材
mp,prxy,1,0.3
mp,dens,1,7850
tb,bkin,1,1,2,1
tbtemp,
tbdata,,275E6,0

!**************************************柱*************************
BLOCK,,0.07,,0.85,,3.6*3
BLOCK,0.85-0.07,0.85,,0.85,,3.6*3
BLOCK,0.07,0.85-0.07,,0.07,,3.6*3
BLOCK,0.07,0.85-0.07,0.85-0.07,0.85,,3.6*3
VGEN,2,ALL,,,6
!**************************************梁*************************
K,1000,0.85/2,0.85/2,3.6*2
KWPAVE,1000 !*转移工作平面
!*生成梁
VSEL,NONE,NOEN
BLOCK,0.85/2,6-0.85/2,-0.1,0.1,0.6/2-0.012,0.6/2
BLOCK,0.85/2,6-0.85/2,-0.025/2,0.025/2,-0.6/2+0.012,0.6/2-0.012
BLOCK,0.85/2,6-0.85/2,-0.1,0.1,-0.6/2,-0.6/2+0.012
VGEN,2,ALL,,,,,-3.6

!**************************************支撑*************************
CSYS,0
WPCSYS,-1,0
KWPAVE,1000
CHANG=6
GAO=3.6
*AFUN,DEG
ZTA=ATAN(GAO/CHANG)
WPROTA,,,ZTA

BLOCK,,7,-0.2/2,-0.2/2+0.018,-0.2/2,0.2/2
BLOCK,,7,-0.2/2+0.018,0.2/2-0.018,0.2/2-0.018,0.2/2
BLOCK,,7,-0.2/2+0.018,0.2/2-0.018,-0.2/2,-0.2/2+0.018
BLOCK,,7,0.2/2-0.18,0.2/2,-0.2/2,0.2/2

CSYS,0
WPCSYS,-1,0 !*工作平面归零
K,1001,0.85/2,0.85/2,3.6
KWPAVE,1001
WPROTA,,,-ZTA
BLOCK,,7,-0.2/2,-0.2/2+0.018,-0.2/2,0.2/2
BLOCK,,7,-0.2/2+0.018,0.2/2-0.018,0.2/2-0.018,0.2/2
BLOCK,,7,-0.2/2+0.018,0.2/2-0.018,-0.2/2,-0.2/2+0.018
BLOCK,,7,0.2/2-0.18,0.2/2,-0.2/2,0.2/2

ALLSEL,ALL,ALL
VOVLAP,ALL
!*先删除梁和柱,然后再重新生成新的梁和柱
!*删除柱
VSEL,S,LOC,X,,0.85
VSEL,A,LOC,X,6,6+0.85
VDELE,ALL,,,1
!*删除梁
CSYS,0
VSEL,S,LOC,Z,3.6*2-0.6/2,3.6*2+0.6/2
VSEL,A,LOC,Z,3.6-0.6/2,3.6+0.6/2
VDELE,ALL,,,1

ALLSEL,ALL,ALL
VADD,ALL

!**************************************柱*************************
CSYS,0
WPCSYS,,0
VSEL,NONE,NONE
BLOCK,,0.07,,0.85,,3.6*3
BLOCK,0.85-0.07,0.85,,0.85,,3.6*3
BLOCK,0.07,0.85-0.07,,0.07,,3.6*3
BLOCK,0.07,0.85-0.07,0.85-0.07,0.85,,3.6*3
VGEN,2,ALL,,,6
VADD,ALL
!**************************************梁*************************
K,1000,0.85/2,0.85/2,3.6*2
KWPAVE,1000 !*转移工作平面
!*生成梁
VSEL,NONE,NOEN
BLOCK,0.85/2,6-0.85/2,-0.1,0.1,0.6/2-0.012,0.6/2
BLOCK,0.85/2,6-0.85/2,-0.025/2,0.025/2,-0.6/2+0.012,0.6/2-0.012
BLOCK,0.85/2,6-0.85/2,-0.1,0.1,-0.6/2,-0.6/2+0.012
VGEN,2,ALL,,,,,-3.6
VADD,ALL

ALLSEL,ALL,ALL
VGLUE,ALL

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