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ANSYS机械工程应用精华30例(第2版)命令流


ANSYS 机械工程应用精华 30 例(第 2 版)
ISBN 978-7-121-09718-8
高耀东 主 编 刘学杰 周可璋 副主编

实例源程序

本资料由高耀东老师整理提供,在此,向高老师表示衷心的感谢! 本书编辑朱清江,欢迎您咨询交流、洽谈合作!

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目 录

/>第 1 例 关键点和线的创建实例—正弦曲线 .............................................................................. 3 第 2 例 工作平面的应用实例—相交圆柱体 .............................................................................. 4 第 3 例 复杂形状实体的创建实例—螺栓 .................................................................................. 5 第 4 例 复杂形状实体的创建实例—杯子 .................................................................................. 7 第 5 例 杆系结构的静力学分析实例—平面桁架......................................................................... 9 第 6 例 杆系结构的静力学分析实例—悬臂梁........................................................................... 10 第 7 例 平面问题的求解实例—厚壁圆筒问题 ........................................................................ 11 第 8 例 静力学问题的求解实例—扳手的受力分析................................................................. 12 第 9 例 各种坐标系的应用实例—圆轴扭转分析..................................................................... 14 第 10 例 模态分析实例—均匀直杆的固有频率分析............................................................... 16 第 11 例 模态分析实例—斜齿圆柱齿轮的固有频率分析 ....................................................... 17 第 12 例 有预应力模态分析实例—弦的横向振动................................................................... 19 第 13 例 谐响应分析实例—单自由度系统的受迫振动........................................................... 21 第 14 例 瞬态动力学分析实例—凸轮从动件运动分析........................................................... 23 第 15 例 连杆机构运动分析实例—曲柄滑块机构................................................................... 25 第 16 例 接触分析实例—平行圆柱体承受法向载荷时的接触应力分析 ............................... 27 第 17 例 稳定性问题分析实例—屈曲分析 .............................................................................. 29 第 18 例 弹塑性分析实例—厚壁圆筒问题 .............................................................................. 31 第 19 例 非线性分析综合应用实例—冲击 .............................................................................. 32 第 20 例 非线性分析综合应用实例—钢板卷制成圆筒........................................................... 35 第 21 例 瞬态热分析实例—水箱 .............................................................................................. 40 第 22 例 在结构上直接施加温度载荷进行热应力分析实例—双金属簧片 ........................... 42 第 23 例 热应力分析(间接法)实例—液体管路................................................................... 43 第 24 例 热应力分析(直接法)实例—液体管路................................................................... 45 第 25 例 用物理环境法进行流体结构耦合分析实例—液压缸............................................... 46 第 26 例 优化设计实例—梁的优化设计 .................................................................................. 50 第 27 例 优化设计实例—曲柄摇杆机构的优化设计............................................................... 52 第 28 例 载荷工况组合实例—简支梁 ...................................................................................... 57 第 29 例 模型力学特性计算实例—液体容器倾翻特性的研究............................................... 58 第 30 例 单元生死应用实例—焊接模拟 .................................................................................. 60 第 31 例 利用 MPC 技术对 SOLID-SHELL 单元进行连接实例—简支梁 ............................. 67

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第1例
/PREP7 K,100,0,0,0 CIRCLE,100,1,,,90 CSYS,1 KFILL,2,1,4,3,1 K,7,1+3.1415926/2,0,0 CSYS,0 KFILL,7,1,4,8,1 KGEN,2,7,11,1,,1 LSTR,8,13 LSTR,9,14 LSTR,10,15 LSTR,11,16 LANG,5,6,90,,0 LANG,4,5,90,,0 LANG,3,4,90,,0 LANG,2,3,90,,0 BSPLIN,1,17,18,19,20,12 LSEL,U,,,14 LDELE,ALL LSEL,ALL KWPAVE,12 CSYS,4 LSYMM,X,14 NUMMRG,KP,,,,LOW LCOMB,ALL,,0

关键点和线的创建实例—正弦曲线

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第2例

工作平面的应用实例—相交圆柱体

/PREP7 CYLIND,0.015,0,0,0.08,0,360 CYLIND,0.03,0,0,0.08,0,360 /VIEW,1,1,1,1 /PNUM,VOLU,1 WPOFF,0,0.05,0.03 WPROT,0,60 CYLIND,0.012,0,0,0.055,0,360 CYLIND,0.006,0,0,0.055,0,360 VSEL,S,,,2,3,1 CM,VV1,VOLU VSEL,INVE CM,VV2,VOLU VSEL,ALL VSBV,VV1,VV2 BLOCK,-0.002,0.002,-0.013,-0.009,0,0.008 WPSTYLE,,,,,,1 CSYS,4 VGEN,3,1,,,,120 VSBV,5,1 VSBV,4,2 VSBV,1,3 WPROT,0,0,90 VSBW,ALL VDELE,1,4,3 VADD,ALL VPLOT /REPLOT

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第3例

复杂形状实体的创建实例—螺栓

/PREP7 CSYS,1 K,1,0.008,0,-0.002 K,2,0.008,90,-0.0015 K,3,0.008,180,-0.001 K,4,0.008,270,-0.0005 K,5,0.008,0,0 /VIEW,1,1,1,1 L,1,2 L,2,3 L,3,4 L,4,5 LGEN,7,ALL,,,,,0.002 NUMMRG,KP,,,,LOW LCOMB,ALL K,80,0.008+0.0015/4,90,0.012+0.002/4 K,81,0.008+2*0.0015/4,180,0.012+2*0.002/4 K,82,0.008+3*0.0015/4,270,0.012+3*0.002/4 K,83,0.008+4*0.0015/4,0,0.012+4*0.002/4 L,35,80 L,80,81 L,81,82 L,82,83 CSYS,0 K,90,0.008,0,-0.00025 K,91,0.006918,0,-0.002 K,92,0.006918,0,0 /PNUM,KP,1 /PNUM,LINE,1 GPLOT LSTR,1,90 LSTR,91,92 LANG,7,90,60,,0 LANG,7,1,120,,0 AL,6,9,10,11 VDRAG,1,,,,,,1,2,3,4,5 /PNUM,KP,0 /PNUM,LINE,0 /PNUM,AREA,1 /PNUM,VOLU,1

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CYLIND,0.0079,,0,0.04,0,360 VSEL,U,,,6 CM,VVV2,VOLU ALLS VSBV,6,VVV2 /REPLOT K,93,0.0065,0,0 K,94,0.0095,0,0.003 K,95,0,0,0 K,96,0,0,0.03 LSTR,93,94 AROTAT,6,,,,,,95,96,360 ASEL,S,,,1,4,1 VSBA,7,ALL ASEL,ALL VDELE,1,,,1 RPRISM,0.04,0.05,6,,0.0131 CONE,0.03477,0.00549,0.03,0.055,0,360 VINV,1,3 /REPLOT VPLOT FINISH

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第4例

复杂形状实体的创建实例—杯子

/PREP7 K,1,0,0,0 K,2, 0.0395,0,0 K,3, 0.05,0.12,0 K,4, 0.047,0.12,0 K,5, 0.03675,0.003,0 K,6, 0,0.003,0 LSTR,1,2 LSTR,2,3 LSTR,3,4 LSTR,4,5 LSTR,5,6 LSTR,6,1 LFILLT, 1, 2, 0.02 LFILLT, 4, 5, 0.017 AL,ALL VROTAT, ALL, , , , , , 1,6, 360 K,31, 0,0.103,0 K,32, 0.078,0.103,0 K,33, 0.078,0.046,0 K,34, 0,0.0011,0 LSTR,31,32 LSTR,32,33 LSTR,33,34 LFILLT, 54,55, 0.013 LFILLT, 55, 56, 0.028 K,41, 0,0.103+0.002,0.005 K,42, 0,0.103+0.002,-0.005 K,43, 0,0.103-0.002,-0.005 K,44, 0,0.103-0.002,0.005 LSTR,41,42 LSTR,42,43 LSTR,43,44 LSTR,44,41 LFILLT,59,60,0.001 LFILLT,60,61,0.001 LFILLT,61,62,0.001 LFILLT,62,59,0.001 AL, 59,63,60,64,61,65,62,66 VDRAG,33, , , , , , 54,57,55,58,56

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VSEL,S,,,5,9,4 ASEL,S,,,4,28,24 VSBA,ALL,ALL ALLSEL,ALL VDELE,10,,,1 VDELE,13,,,1 /PNUM,VOLU,1 /NUMBER,1 /COLOR,VOLU,ORAN,ALL /REPLOT FINISH

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第 5 例 杆系结构的静力学分析实例—平面桁架
/CLEAR /FILNAME, EXAMPLE5 L=0.1 A=1e-4 /PREP7 ET,1,BEAM3 R,1,A MP,EX,1,2E11 MP,PRXY,1,0.3 N,1 N,2,L N,3,2*L N,4,L,L E,1,2 E,2,3 E,1,4 E,2,4 E,3,4 FINISH /SOLU D,1,UX D,1,UY D,3,UY F,4,FY,-2000 SOLVE FINISH /POST1 ETABLE,FA,SMISC,1 ETABLE,SA,LS,1 PRETAB,FA,SA FINISH

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第 6 例 杆系结构的静力学分析实例—悬臂梁
/CLEAR /FILNAME, EXAMPLE6 /PREP7 ET,1, BEAM3 R,1,14.345e-4,245e-8,0.1 MP,EX,1,2E11 MP,NUXY,1,0.3 K,1,0,0,0 K,2,1,0,0 LSTR,1,2 LESIZE,1,,,50 LMESH,1 FINISH /SOLU DK,1,UX DK,1,UY DK,1,ROTZ FK,2,FY,-10000 SOLVE FINISH /POST1 PLDISP FINISH

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第7例
/CLEAR /FILNAME, EXAMPLE7 /PREP7 ET,1,PLANE183,,,2 MP,EX,1,2E11 MP,PRXY,1,0.3 PCIRC, 0.1, 0.05, 0, 90 LESIZE, 4,,,6 LESIZE, 3,,,8 MSHAPE,0 MSHKEY,1 AMESH,1 FINISH /SOLU DL,4,,UY DL,2,,UX SFL,3,PRES,10E6 SOLVE SAVE FINISH /POST1 PATH,P1,2 PPATH,1,30 PPATH,2,1 PDEF,SR,S,X PDEF,ST,S,Y PLPATH,SR,ST FINISH

平面问题的求解实例—厚壁圆筒问题

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第8例

静力学问题的求解实例—扳手的受力分析

/CLEAR /FILNAME, EXAMPLE8 /PREP7 ET,1,PLANE42 ET,2,SOLID45 MP,EX,1,2E11 MP,PRXY,1,0.3 RPR4, 6, 0, 0, 0.01 K,7,0,0,0 K,8, 0,0,0.05 K,9, 0,0.1,0.05 LSTR,7,8 LSTR,8,9 LFILLT, 7, 8, 0.015 LSTR,1,4 ASBL, 1, 10 LESIZE,2,,,3 LESIZE,3,,,3 LESIZE,4,,,3 LESIZE,7,0.01 LESIZE,8,0.01 LESIZE,9,0.01 MSHAPE,0 MSHKEY,1 AMESH,ALL VDRAG, ALL,,,,,,7,9,8 ACLEAR, 2,3,1 FINISH /SOLU DA,2,ALL DA,3,ALL KSEL,S,,,24,29,1 FK,ALL,FX,100 KSEL,ALL SOLVE SAVE FINISH

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/POST1 /VIEW,1,1,1,1 PLDISP, 2 PLNSOL,S,EQV,0,1 NWPAVE,159 /TYPE,1, SECT /CPLANE,1 /REPLOT FINISH

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第9例

各种坐标系的应用实例—圆轴扭转分析

/CLEAR /FILNAME, EXAMPLE9 /PREP7 ET,1,PLANE183 ET,2,SOLID186 MP,EX,1,2.08E11 MP,PRXY,1,0.3 RECTNG,0,0.025, 0,0.12 LESIZE,1,,,5 LESIZE,2,,,8 MSHAPE,0 MSHKEY,1 AMESH,1 EXTOPT,ESIZE,5 EXTOPT,ACLEAR,1 VROTAT,1,,,,,,1,4,360 /VIEW,1,1,1,1 WPROT,0,-90 CSWPLA,11,1,1,1 NSEL,S,LOC,X,0.025 NROTAT,ALL FINISH /SOLU D,ALL,UX NSEL,R,LOC,Z,0.12 F,ALL,FY,1500 ALLSEL,ALL DA,2,ALL DA,6,ALL DA,10,ALL DA,14,ALL SOLVE SAVE FINISH /POST1 PLDISP,1 RSYS,11

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NSEL,S,LOC,Z,0.045 NSEL,R,LOC,Y,0 PRNSOL,U,Y !NSEL,S,LOC,Z,0,0.045 !ESLN,R,1 !PLESOL,S,YZ FINISH

!命令前加“!”号为注释语句, !去掉“!”号即可执行该命令, !三个注释语句用于显示剪应力 。

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第 10 例

模态分析实例—均匀直杆的固有频率分析

/CLEAR /FILNAME, EXAMPLE10 /PREP7 ET,1,SOLID186 MP,EX,1,2E11 MP,PRXY,1,0.3 MP,DENS,1,7800 BLOCK,0,0.01,0,0.01,0,0.1 LESIZE,1,,,3 LESIZE,2,,,3 LESIZE,9,,,15 MSHAPE,0 MSHKEY,1 VMESH,1 FINISH /SOLU ANTYPE, MODAL MODOPT,LANB,5 MXPAND,5 DA,1,UZ DA,3,UY DA,5,UX SOLVE SAVE FINISH /POST1 SET,LIST SET,FIRST /VIEW,1,-1 /REPLOT PLDI ANMODE,10,0.5,,0 SET,NEXT PLDI ANMODE,10,0.5,,0 FINISH

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第 11 例

模态分析实例—斜齿圆柱齿轮的固有频率分析

/CLEAR /FILNAME, EXAMPLE11 /PREP7 ET,1,SOLID45 MP,EX,1,2E11 MP,PRXY,1,0.3 MP,DENS,1,7800 K,1,21.87E-3 K,2,22.82E-3,1.13E-3 K,3,24.02E-3,1.47E-3 K,4,24.62E-3,1.73E-3 K,5,25.22E-3,2.08E-3 K,6,25.82E-3,2.4E-3 K,7,26.92E-3,3.23E-3 K,8,27.11E-3 BSPLIN,2,3,4,5,6,7 LSYMM,Y,1 LARC,2,9,1 LARC,7,10,8 AL,ALL CSYS,1 VEXT, 1, , ,0, 8.412,20E-3 VGEN,24,1,,,0,360/24 CSYS,0 CYL4,0,0,10E-3,0,26.37E-3,360,20E-3 BLOCK,-3E-3,3E-3,0,12.8E-3,0,20E-3 VSBV,25,ALL SMRTSIZE,9 ESIZE,0.002 MSHAPE,1 MSHKEY, 0 VMESH,ALL CSYS,1 NSEL,S,LOC,X,0.01 NROTAT,ALL D,ALL,UX ALLSEL,ALL FINISH

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/SOLU ANTYPE, MODAL MODOPT,LANB,5 MXPAND,5 DA,208,UX NSEL,S,LOC,Z,0 NSEL,A,LOC,Z,20E-3 NSEL,R,LOC,X,0,15E-3 D,ALL,UZ ALLSEL,ALL SOLVE FINISH /POST1 SET,LIST FINISH

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第 12 例

有预应力模态分析实例—弦的横向振动

/CLEAR /FILNAME, EXAMPLE12 /PREP7 ET,1,LINK1 MP,EX,1,2E11 MP,PRXY,1,0.3 MP,DENS,1,7800 R,1,1E-6 K,1,0,0,0 K,2,1,0,0 LSTR,1,2 LESIZE,1,,,50 LMESH,1 FINISH /SOLU DK,1,UX DK,1,UY DK,2,UY FK,2,FX,2000 PSTRES,ON SOLVE SAVE FINISH /SOLU ANTYPE, MODAL MODOPT,LANB,10 MXPAND,10 DK,2,UX PSTRES,ON SOLVE FINISH /POST1 SET,LIST SET,FIRST PLDI ANMODE,10,0.5,,0

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SET,NEXT PLDI ANMODE,10,0.5,,0 FINISH

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第 13 例

谐响应分析实例—单自由度系统的受迫振动

/CLEAR /FILNAME, EXAMPLE13 /PREP7 ET,1,MASS21 ET,2,COMBIN14 R,1,1 R,2,10000,63 N,1,0,0,0 N,2,1,0,0 TYPE,2 REAL,2 E,1,2 TYPE,1 REAL,1 E,2 FINISH /SOLU ANTYPE, HARMIC D,1,ALL D,2,UY D,2,UZ D,2,ROTX D,2,ROTY D,2,ROTZ HARFRQ,0,50 NSUBST,25 KBC,1 F,2,FX,2000 SOLVE SAVE FINISH /POST26 NSOL,2,2,U,X,DispX PLVAR,2 PLCPLX,1 PLVAR,2 FINISH

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第 14 例

瞬态动力学分析实例—凸轮从动件运动分析

/CLEAR /FILNAME, EXAMPLE14 /PREP7 ET,1,PLANE42 ET,2,SOLID45 MP,EX,1,2E11 MP,PRXY,1,0.3 MP,DENS,1,7800 K,1,0,0,0 K,2,0.015,0.015,0 K,3,0.015,0.1,0 K,4,0,0.1,0 LSTR,1,2 LSTR,2,3 LSTR,3,4 LSTR,4,1 AL,ALL LESIZE,1,,,2 LESIZE,3,,,2 LESIZE,2,,,10 AATT, 1, 1, 1 MSHAPE,0 MSHKEY,1 AMESH,ALL TYPE,2 EXTOPT,ESIZE,4 EXTOPT,ACLEAR,1 VROTAT,1,,,,,,1,4,360 WPROT,0,-90 CSWPLA,11,CYLIN ASEL,S,,,3,15,4 NSLA,S,1 NROTAT,ALL FINISH /SOLU D,ALL,UX ALLSEL,ALL ANTYPE, TRANS

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OUTRES,ALL,ALL FK,4,FY,-1000 TIME,10 AUTOTS,ON DELTIM,0.5,0.2,1 KBC,0 DK,1,UY,0.02 LSWRITE,1 TIME,20 LSWRITE,2 TIME,35 DK,1,UY,0 LSWRITE,3 TIME,45 LSWRITE,4 LSSOLVE,1,4,1 SAVE FINISH /POST26 NSOL,2,1,U,Y,uy DERIV,3,2,1 DERIV,4,3,1 PLVAR,2,3 PLVAR,2,4 FINISH

!第 1 个载荷步

!第 2 个载荷步 !第 3 个载荷步

!第 4 个载荷步

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第 15 例

连杆机构运动分析实例—曲柄滑块机构

/CLEAR /FILNAME, EXAMPLE15 /PREP7 PI=3.1415926 R=0.25 L=0.62 E=0.2 OMGA1=30 T=60/OMGA1 FI0=ASIN(E/(R+L)) AX=0 AY=0 BX=R*COS(FI0) BY=-R*SIN(FI0) CX=(R+L)*COS(FI0) CY=-E ET,1,COMBIN7 ET,2,BEAM4 MP,EX,1,2E11 MP,PRXY,1,0.3 MP,DENS,1,1E-14 R,1,1E9,1E3,1E3,0 R,2,4E-4,1.3333E-8,1.3333E-8,0.02,0.02 N,1,AX,AY N,2,BX,BY N,3,BX,BY N,4,CX,CY N,5,BX,BY,-1 TYPE,1 REAL,1 E,2,3,5 TYPE,2 REAL,2 E,1,2 E,3,4 FINISH /SOLU ANTYPE,TRANS

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NLGEOM,ON DELTIM,T/70 KBC,0 TIME,T OUTRES,ALL,ALL CNVTOL,F,1,0.1 CNVTOL,M,1,0.1 D,ALL,UZ D,ALL,ROTX D,ALL,ROTY D,1,ROTZ,2*PI D,1,UX D,1,UY D,4,UY SOLVE SAVE FINISH /POST26 NSOL,2,4,U,X DERIV,3,2,1 DERIV,4,3,1 PLVAR,2 PLVAR,3 PLVAR,4 FINISH

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第 16 例

接触分析实例—平行圆柱体承受法向载荷时的接触 应力分析

/CLEAR /FILNAME, EXAMPLE16 /PREP7 ET,1,PLANE183 ET,2,SOLID186 ET,3,TARGE170 ET,4,CONTA174,,,,,1 R,1,,,0.1 MP,EX,1,2E11 MP,PRXY,1,0.3 CYL4,0,0,0.1,0,0,90 CYL4,0,0.15,0.05,-90,0,0 WPOFF,0.01 WPROT,0,0,90 ASBW,ALL AATT, 1, 1, 1 ESIZE,0.0075 MSHAPE,0 MSHKEY,0 AMESH,ALL KREFINE,2,4,2,3 TYPE,2 EXTOPT,ESIZE,5 EXTOPT,ACLEAR,1 VEXT,ALL,,,,,0.01 ASEL,S,,,14 NSLA,S,1 REAL,1 TYPE,3 ESURF ALLS ASEL,S,,,18 NSLA,S,1 REAL,1 TYPE,4 ESURF ALLS

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FINISH

/SOLU DA,16,UY DA,8,UY DA,15,UX DA,20,UX DA,1,UZ DA,9,UZ DA,13,UZ DA,17,UZ ASEL,S,,,11,19,8 NSLA,S,1 SFA,ALL,1,PRES,1E6 CP,1,UY,ALL ALLS LNSRCH,ON AUTOTS,ON NSUBST,5,10,3 OUTRES,ALL,ALL SOLVE FINISH /POST1 ESEL,S,TYPE,,4 ETABLE,PRES,CONT,PRES ETABLE,ST,CONT,STAT ETABLE,GAP,CONT,GAP ESORT,ETAB,PRES,0 PRETAB,PRES,ST,GAP,PENE FINISH

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第 17 例
/CLEAR /FILNAME, EXAMPLE17

稳定性问题分析实例—屈曲分析

/PREP7 ET,1,BEAM4 MP,EX,1,2E11 MP,PRXY,1,0.3 R,1,9E-4,6.75E-8,6.75E-8,0.03,0.03,0 K,1,0,0,0 K,2,0,2,0 LSTR,1,2 LESIZE,1,,,10 TYPE,1 MAT,1 REAL,1 LMESH,1 FINISH /SOLU ANTYPE,STATIC PSTRES,ON DK,1,UX DK,1,UY DK,1,UZ DK,1,ROTX DK,1,ROTY DK,2,UX DK,2,UZ DK,2,ROTX DK,2,ROTY FK,2,FY,-1 SOLVE FINISH /SOLU ANTYPE,BUCKLE BUCOPT,LANB,1 MXPAND,1 OUTPR,ALL,ALL SOLVE

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SAVE FINISH /POST1 SET,FIRST SET,LIST PLDISP,2 FINISH

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第 18 例
/CLEAR /FILNAME,EXAMPLE18 /PREP7 ET,1,183,,,2 MP,EX,1,2E11 MP,NUXY,1,.3 TB,BKIN,1,1 TBTEMP,0 TBDATA,1,500E6,0 PCIRC,0.1,0.05,0,90 ESIZE,0.003 MSHKEY,1 MSHAPE,0 AMESH,ALL FINISH /SOLU DL,4,,UY DL,2,,UX AUTOTS,ON DELTIM,0.2,0.1,0.3 KBC,0 TIME,1 SFL,3,PRES,375E6 LSWRITE TIME,2 SFL,3,PRES,0 LSWRITE LSSOLVE,1,2 FINISH /POST1 RSYS,1 SET,1,LAST PLNSOL,S,EQV FINISH

弹塑性分析实例—厚壁圆筒问题

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第 19 例
/CLEAR /FILNAM, EXAMPLE19

非线性分析综合应用实例—冲击

/PREP7 ET,1,SOLID45 ET,2,SHELL43 ET,3,COMBIN14 ET,4,CONTA173 ET,5,TARGE170 MP,EX,1,2E11 MP,NUXY,1, 0.3 MP,DENS,1,7800 TB,BKIN,1,1 TBTEMP,0 TBDATA,,240E6,2E8 R,1,0.06 R,2,100000 R,3,,,0.5 /VIEW,1,1,1,1 K,1,-0.8,0,-1.5 K,2,-0.8,0,1.5 K,3,0.8,0,1.5 K,4,0.8,0,-1.5 A,1,2,3,4 TYPE,2 REAL,1 ESIZE,0.08 AMESH,1 BLOCK,-0.1,0.1,0.001,0.201,-0.1,0.1 TYPE,1 ESIZE,0.05 VMESH,1 N,950,-0.8,-0.5,-1.5 N,951,0.8,-0.5,-1.5 N,952,0.8,-0.5,1.5 N,953,-0.8,-0.5,1.5 TYPE,3 REAL,2 E,1,950 E,60,951

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E,40,952 E,2,953 NSEL,S,,,950,953,1 D,ALL,ALL ALLSEL NSEL,S,LOC,Y,0 NSEL,R,LOC,X,-0.3,0.3 NSEL,R,LOC,Z,-0.3,0.3 REAL,3 TYPE,5 ESURF ALLS ASEL,S,,,4 NSLA,S,1 REAL,3 TYPE,4 ESURF ALLS FINI /SOLU ANTYPE,TRANS ACEL,0,9.8 VSEL,S,,,1 NSLV,S,1 IC,ALL,UY,,-8 D,ALL,UX D,ALL,UZ ALLS KBC,0 LNSRCH,ON AUTOT,ON OUTRES,ALL,ALL TIME,0.0013 DELTIM,2.5E-5,1E-6,4E-5 SOLVE FINI /POST1 PLNSOL,S,EQV, 0,1.0 FINI /POST26 NSOL,2,880,U,Y

33

DERIV,3,2,1 DERIV,4,3,1 PLVAR,2 FINI

34

第 20 例

非线性分析综合应用实例—钢板卷制成圆筒
!清除数据库,新建文件 !指定工作名 !设置最大子步数

/CLEAR /FILNAM, EXAMPLE20 /CONFIG, NRES,2000

!前处理 /PREP7 !进入前处理器 /PNUM, VOLU,ON !打开体号 ET,1,SHELL43 !选择单元类型,壳单元用于划分上下辊 ET,2,SOLID186 !实体单元用于划分钢板 MP,EX,1,2E11 !定义材料模型 1 的弹性模量 MP,DENS,1,7800 !定义材料模型 1 的密度 MP,NUXY,1,0.3 !定义材料模型 1 的泊松比 MP,EX,2,2E11 !定义材料模型 2 的弹性模量 MP,DENS,2,7800 !定义材料模型 2 的密度 MP,NUXY,2,0.3 !定义材料模型 2 的泊松比 TB,BKIN,2,1 TBTEMP,0 TBDATA, ,240E6,2E8 !定义材料模型 2 的屈服极限、切向模量 R,1,0.02 !定义实常数 1,壳单元的厚度 CYLIND,0.38/2,0,0.3,2.3,0,360 !创建上辊,圆柱体 CYLIND,0.38/4,0,0.3,0,0,360 CYLIND,0.38/4,0,2.6,2.3,0,360 VGLUE,ALL !粘接 VSEL,NONE WPOFF,0.54/2,-0.4 !偏移工作平面原点到右下辊中心 CYLIND,0.3/2,0,0.3,2.3,0,360 !创建右下辊,圆柱体 CYLIND,0.3/4,0,0.3,0,0,360 CYLIND,0.3/4,0,2.6,2.3,0,360 VGLUE,ALL VSEL,NONE WPOFF,- 0. 54 !偏移工作平面原点到左下辊中心 CYLIND,0.3/2,0,0.3,2.3,0,360 !创建左下辊,圆柱体 CYLIND,0.3/4,0,0.3,0,0,360 CYLIND,0.3/4,0,2.6,2.3,0,360 VGLUE,ALL ALLS !选择所有实体 VDELE,ALL !删除体,但保留面 HPTCREATE,AREA,5,,COORD !在上辊端面中心处创建硬点 HPTCREATE,AREA,10,,COORD,0,0,2.6 HPTCREATE,AREA,34,,COORD,-0.54/2,-0.4,2.6 !在左下辊端面中心处创建硬点

35

HPTCREATE,AREA,29,,COORD,-0.54/2,-0.4,0 HPTCREATE,AREA,22,,COORD,0.54/2,-0.4,2.6 !在右下辊端面中心处创建硬点 HPTCREATE,AREA,17,,COORD,0.54/2,-0.4,0 MAT,1 !为上下辊划分单元指定属性,材料模型 TYPE,1 !单元类型 REAL,1 !实常数 ESIZE,0.05 !指定单元边长度 SMRTSIZE,8 !指定智能尺寸级别 MSHAPE,1 !指定单元形状为三角形 AMESH,ALL !对所有面划分单元 BLOCK,0.7,-1.0,0.3/2+.02,0.3/2+.02+0.03,0.5,2.1 !创建钢板,块 LESIZE,96,,,1 !指定线 96(钢板厚度)被划分为 1 段 MAT,2 !为钢板划分单元指定属性 TYPE,2 MSHKEY, 1 !映射网格 MSHAPE,0 !指定单元形状为六面体 ESIZE,0.05 !指定单元边长度 VMESH,ALL !对块划分网格 ET,4,TARGE170 !指定单元类型,用于创建接触对 ET,5,CONTA174 KEYOPT,5,12,1 !设置单元 5 接触表面无滑动 R,10,,,0.1 !定义实常数,KFN=0.1 R,11,,,0.1 R,12,,,0.1 ASEL,S,,,40 !在钢板上表面和上辊表面建立接触对 NSLA,S,1 NSEL,U,LOC,Z,0.8,1.8 MAT,3 REAL,10 TYPE,4 ESURF ALLS ASEL,S,,,3,4,1 NSLA,S,1 NSEL,U,LOC,Z,0.9,1.7 NSEL,U,LOC,Z,0.3,0.4 NSEL,U,LOC,Z,2.2,2.3 MAT,3 REAL,10 TYPE,5 ESURF ALLS ASEL,S,,,39 !在钢板下表面和左下辊表面建立接触对 NSLA,S,1

36

NSEL,U,LOC,Z,0.8,1.8 MAT,4 REAL,11 TYPE,4 ESURF ALLS ASEL,S,,,27,28,1 NSLA,S,1 NSEL,U,LOC,Z,0.9,1.7 NSEL,U,LOC,Z,0.3,0.4 NSEL,U,LOC,Z,2.2,2.3 MAT,4 REAL,11 TYPE,5 ESURF ALLS ASEL,S,,,39 NSLA,S,1 NSEL,U,LOC,Z,0.8,1.8 MAT,4 REAL,12 TYPE,4 ESURF ALLS ASEL,S,,,15,16,1 NSLA,S,1 NSEL,U,LOC,Z,0.9,1.7 NSEL,U,LOC,Z,0.3,0.4 NSEL,U,LOC,Z,2.2,2.3 MAT,4 REAL,12 TYPE,5 ESURF ALLS FINI !首先模拟下辊不动,上辊下降 /SOLU D,ALL,UZ D,ALL,ROTX D,ALL,ROTY NSEL,S,LOC,X NSEL,R,LOC,Y D,ALL,UY,-0.08 D,ALL,UX

! 在钢板下表面和右下辊表面建立接触对

!进入求解器 !在所有节点上施加约束

!选择上辊轴线上节点 !施加约束,上辊下降 0.08 m

37

D,ALL,UZ ALLS CSYS,4 ASEL,S,LOC,Y,-2,0.3/2+0.01 NSLA,S,1 D,ALL,ALL ALLS ANTYPE,TRANS NEQIT,100 LNSRCH,ON NLGEOM,ON TIME,1 AUTOT,ON NSUBST,30,80,20 KBC,0 OUTRES,ALL,ALL SOLVE !以下模拟下辊转动,驱动钢板前进 CSYS,4 ASEL,S,LOC,Y,-2,0.3/2+0.01 NSLA,S,1 DDELE, ALL,ALL ALLS D,ALL,UZ D,ALL,ROTX D,ALL,ROTY NSEL,S,LOC,X,0 NSEL,R,LOC,Y D,ALL,ROTZ,-3.1415926 D,ALL,UX D,ALL,UY ALLS WPOFF,0.54 NSEL,S,LOC,X,0 NSEL,R,LOC,Y D,ALL,UX D,ALL,UY D,ALL,ROTZ,-3.1415926 TIME,2 ALLS KBC,0 NSUBST,200,1000,100 SOLVE !模拟卸载

!激活工作平面坐标系 !选择下辊上所有面 !选择下辊上所有节点 !约束掉所有自由度 !瞬态分析 !指定最大迭代次数 !打开线性搜索 !打开大变形选项 !指定载荷步时间 !打开自动载荷步长 !指定子步数目 !斜坡载荷 !输出所有子步所有项目的结果 !解答

!选择下辊上所有面 !选择下辊上所有节点 !删除掉上一载荷步施加在下辊上的所有约束 !在所有节点上施加约束

!选择左下辊轴线上所有节点 !转动半周 !约束掉移动

!偏移工作平面 !选择右下辊轴线上所有节点 !约束掉移动 !转动半周

!解答

38

ACEL, 0,9.8 CSYS,0 NSEL,S,LOC,X NSEL,R,LOC,Y D,ALL,UY,-0.06 D,ALL,UX D,ALL,UZ D,ALL,ROTX D,ALL,ROTY ALLS KBC,0 NSUBST,20,300,10 TIME,2.1 SOLVE FINI !查看结果 /POST1 SET,LAST PLNS,U,SUM ANTIME,50,0.5, ,1,2,0,2.1 FINI

!施加重力加速度 !激活全球直角坐标系 !选择上辊轴线上所有节点 !上辊向上移动,卸载

!读最后载荷子步计算结果 !用动画查看卷制圆筒过程中的变形情况

39

第 21 例
/CLEAR /FILNAME,EXAMPLE21 /PREP7 ET,1,PLANE77 MP,KXX,1,383 MP,DENS,1,8889 MP,C,1,390 MP,KXX,2,70 MP,DENS,2,7833 MP,C,2,448 MP,KXX,3,2 MP,DENS,3,996 MP,C,3,4185 RECTNG,0,0.6,0,0.5 RECTNG,0.15,0.225,0.225,0.27 RECTNG,0.342,0.42,0.225,0.27 AOVLAP,ALL AATT,1,1,1 MSHAPE,0 MSHKEY,1 ESIZE,0.01 AMESH,2 AATT,2,1,1 AMESH,3 AATT,3,1,1 MSHKEY,0 ESIZE,0.03 AMESH,4 FINISH /SOLU ANTYPE,TRANS TIMINT,OFF TIME,0.01 DELTIM,0.01 ESEL,S,MAT,,3 NSLE,S D,ALL,TEMP,20 ESEL,S,MAT,,2

瞬态热分析实例—水箱

40

NSLE,S D,ALL,TEMP,500 ESEL,S,MAT,,1 NSLE,S D,ALL,TEMP,400 ALLSEL SOLVE TIME,3600 TIMINT,ON DELTIM,50,10,200 AUTOTS,ON DDELET,ALL,TEMP OUTRES,ALL,ALL SOLVE SAVE FINISH /POST26 NSOL,2,106,TEMP,,TEMP_106 PLVAR,2 FINISH

41

第 22 例

在结构上直接施加温度载荷进行热应力分析实例— 双金属簧片

/CLEAR /FILNAME, EXAMPLE22 /PREP7 ET,1,SOLID186 MP,EX,1,2E11 MP,NUXY,1,0.3 MP,ALPX,1,10E-6 MP,EX,2,1.1E11 MP,NUXY,2,0.34 MP,ALPX,2,16E-6 BLOCK,0,0.04,0,0.0005,0,0.005 BLOCK,0,0.04,0.0005,0.001,0,0.005 VGLUE, ALL MSHKEY, 1 MSHAPE, 0 ESIZE,0.0005 VATT,1,1,1 VMESH,3 VATT,2,1,1 VMESH,1 FINISH /SOLU DA,5,ALL DA,16,ALL BFV,ALL,TEMP,100 TREF,0 SOLVE FINISH /POST1 PLDISP,2 FINISH

42

第 23 例

热应力分析(间接法)实例—液体管路

/CLEAR /FILNAME,EXAMPLE23 /PREP7 ET,1,77,,,1 MP,KXX,1,70 MP,KXX,2,0.02 RECTNG,0.14,0.15,0,1 RECTNG,0.15,0.2,0,1 AGLUE,ALL ESIZE,0.01 MSHKEY,1 MSHAPE,0 AATT,1,1,1 AMESH,1 AATT,2,1,1 AMESH,3 FINISH /SOLU SFL,4,CONV,1,,70 SFL,6,CONV,0.5,,-40 SOLVE FINISH /PREP7 ETCHG,TTS KEYOPT,1,3,1 MP,EX,1,2E11 MP,NUXY,1,0.3 MP,ALPX,1,1.2E-5 MP,EX,2,2E10 MP,NUXY,2,0.4 MP,ALPX,2,1.2E-6 FINISH /SOLU DL,1,,UY DL,3,,UY DL,9,,UY

43

DL,10,,UY SFL,4,PRES,3E5 LDREAD,TEMP,,,,,,RTH TREF,20 SOLVE FINISH /POST1 PLNSOL,S,EQV FINISH

44

第 24 例

热应力分析(直接法)实例—液体管路

/CLEAR /FILNAME,EXAMPLE24 /PREP7 ET,1,13,4,,1 MP,KXX,1,70 MP,EX,1,2E11 MP,NUXY,1,0.3 MP,ALPX,1,1.2E-5 MP,KXX,2,0.02 MP,EX,2,2E10 MP,NUXY,2,0.4 MP,ALPX,2,1.2E-6 RECTNG,0.14,0.15,0,1 RECTNG,0.15,0.2,0,1 AGLUE,ALL ESIZE,0.01 MSHKEY,1 MSHAPE,0 AATT,1,1,1 AMESH,1 AATT,2,1,1 AMESH,3 FINISH /SOLU SFL,4,CONV,1,,70 SFL,6,CONV,0.5,,-40 DL,1,,UY DL,3,,UY DL,9,,UY DL,10,,UY SFL,4,PRES,3E5 TREF,20 SOLVE FINISH /POST1 PLNSOL,S,EQV FINISH

45

第 25 例

用物理环境法进行流体结构耦合分析实例—液压缸

/CLEAR /FILNAME,EXAMPLE25 !定义工作名 /CONFIG, NRES,2000 !设定写入结果文件最大子步数 !创建包括结构和流体区域的完整有限元模型************************************** /PREP7 !进入前处理器 SHPP,OFF !关闭单元形状检查 ET,1,FLUID141,,,1 !定义单元类型 1 为流体单元,打开轴对称选项 ET,2,PLANE42,,,1 !定义单元类型 2 为结构单元,打开轴对称选项 RECT,0,0.25,0,0.005 !创建矩形面,模拟活塞 RECT,0,0.25,0.005,0.3 !创建矩形面,模拟流体网格随移区域 RECTNG,0,0.25,0.3,1 !创建矩形面,模拟流体 AGLUE,ALL !粘接面 LESIZE,13,0.03,,,.4 !设定线上单元尺寸控制 LESIZE,14,0.03,,,.4 ESIZE,0.01 !设定总体单元尺寸控制 MSHAPE,0 !选择单元形状为四边形 MSHKEY,1 !映射网格 AATT,2,2,2 !指定单元属性 AMESH,1 !对活塞矩形面划分网格 AATT,1,1,1 AMESH,4,5 !对流体矩形面划分网格 ALLS !选择所有 FINI !退出前处理器 !创建流体物理环境********************************************************* /PREP7 ET,1,141,,,1 ET,2,0 !将结构单元设为零单元,计算时将被忽略掉 FLDATA1,SOLU,FLOW,1 !求解动力和压力方程 FLDA,SOLU,TURB,1 !激活(液体或气体的)紊乱 FLDATA4,TIME,GLOB,20 !指定每一个时间步允许的最大迭代次数 FLDA,PROT,DENS,CONSTANT !流体密度为常数 FLDA,PROT,VISC,CONSTANT !流体粘度为常数 FLDA,NOMI,DENS,1000 !流体密度 FLDA,NOMI,VISC,0.001 !流体粘度 NSEL,S,LOC,Y,1 !选择壁上节点 NSEL,R,LOC,X,0.05,0.25 LSEL,S,,,13,15,2 NSLL,A,1 D,ALL,VX,0 !定义壁;即约束节点速度自由度为零 D,ALL,VY,0 NSEL,S,LOC,Y,1 !选择出口处节点

46

NSEL,R,LOC,X,0.05,0 D,ALL,PRES,0 !定义出口;即约束节点压力自由度为零 ALLS LSEL,S,,,14,16,2 !选择对称轴上节点 NSLL,S,1 D,ALL,VX !定义对称轴 ALLS FINI SAVE !保存数据库文件 PHYSICS,WRITE,FLUID,FLUID !写流体物理环境文件 PHYSICS,CLEAR !清空数据库中当前物理环境,准备建立下一个物理环境 FINI !创建结构物理环境********************************************************** /PREP7 ET,1,0 !将流体单元设为零单元 ET,2,PLANE42,,,1 MP,EX,2,2.0E11 !定义结构分析的材料模型;弹性模量 MP,DENS,2,7800E-9 !密度;近似为零即忽略质量 MP,PRXY,2,0.3 !泊松比 ASEL,S,,,1 !选择结构上所有节点 NSLA,S,1 D,ALL,UX !约束 X 方向自由度 ALLS FINI /SOLU ANTYPE,TRANS !瞬态分析 KBC,0 !斜坡载荷 LNSRCH,ON !打开线性搜索 OUTRES,ALL,ALL !输出控制 NSUBST,10,20,5 !载荷步控制 FINI SAVE PHYSICS,WRITE,STRUC,STRUC !写结构物理环境文件 PHYSICS,CLEAR !定义参数、数组********************************************************** LSEL,S,,,3 !选择结构、流体分界线上节点 NSLL,S,1 *GET,NODE_COUNT, NODE, 0, COUNT !读取节点数量到变量 COUNT *GET,NODE_MAX, NODE, 0, NUM,MAX !读取最大节点号到变量 NODE_MAX *GET,NODE_MIN, NODE, 0,NUM,MIN !读取最小节点号到变量 NODE_ MIN *DIM,VXX,ARRAY,NODE_COUNT !定义数组 VXX 存储节点 X 方向速度 *DIM,VYY,ARRAY,NODE_COUNT !定义数组 VYY 存储节点 Y 方向速度 *DIM,NODE_NUM,ARRAY,NODE_COUNT !定义数组 NODE_NUM 存储节点号 ALLS

47

DISMIN0=0 !分界线节点位移最小值变量赋初值 DISMIN1=0 !分界线节点位移最小值变量赋初值 TIME=0.0002 !分析时间 V=3 !活塞速度 !结构-流体分析交互迭代**************************************************** !结构在位移载荷 V*TIME 和流体压力载荷作用下发生位移,流体在结构作用下产生初速 !度和位移,流体压力亦随之变化,通过交互迭代使结构-流体相互协调。 *DO,K,1,50 !结构-流体分析交互迭代循环开始 !进行结构分析--------------------------------------------------------------------------PHYSICS,READ,STRUC !读入结构分析物理环境 /SOLU !进入求解器 *IF,K,GT,1,THEN !从第二次循环开始执行 LSEL,S,,,3 !选择结构、流体分界线上节点 NSLL,S,1 ESEL,S,TYPE,,2 !选择结构单元 LDREAD,PRES,LAST,,,,,RFL !从流体分析的结果文件中读压力,施加在 !结构单元的分界线节点上 ALLS *ENDIF LSEL,S,,,2 !选择活塞上 2 号线所有节点 NSLL,S,1 D,ALL,UY,V*TIME !施加位移载荷 ALLSEL TIME,TIME !指定分析时间 SOLVE !解答 FINI !迭代收敛检查----------------------------------------------------------------------------------/POST1 SET,LAST !读最后载荷子步结果到数据库 LSEL,S,,,3 !选择结构、流体分界线上节点 NSLL,S,1 III=1 !变量 III 赋初值 NSORT,U,Y,0,1 !对节点位移排序 *GET,DISMIN1,SORT,0,MIN !将节点位移的最小值存储于变量 DISMIN1 *IF,ABS((DISMIN1-DISMIN0)/ DISMIN1),LT,1E-6,THEN !检查最小位移相对变化量 *EXIT !小于公差 1E-6,退出循环 *ELSE DISMIN0=DISMIN1 !大于公差继续循环 *ENDIF !计算结构、流体分界线上节点速度-----------------------------------------------------------*DO,J,NODE_MIN,NODE_MAX *IF,NSEL(J),EQ,1,THEN VYY(III)=V VXX(III)=UX(III)/UY(III)*V

48

NODE_NUM(III)=J III=III+1 *ENDIF *ENDDO ALLS FINI !网格随移 /PREP7 DAMORPH,4, ,2 !对面上网格随移 FINI ! 进行流体分析--------------------------------------------------------------------------PHYSICS,READ,FLUID !读入流体分析物理环境 /SOLU *DO,J,1,NODE_COUNT !在流体分界线节点上施加速度载荷 D,NODE_NUM(J),VX,VXX(J) D,NODE_NUM(J),VY,VYY(J) *ENDDO SOLVE FINI *ENDDO !结构-流体分析交互迭代循环结束 PHYSICS,READ,FLUID /POST1 SET,LAST PLNSOL, PRES PLVECT,V, , , ,VECT,ELEM,ON,0 FINI PHYSICS,READ,STRUC /POST1 SET,LAST PLNSOL,S,EQV,1,1 FINI

!压力云图(图 25-1) !速度云图(图 25-2)

!应力云图(图 25-3)

49

第 26 例
1. 优化分析文件 !File:EXAMPLE26.LGW H=0.06 B=0.06 L=1 /PREP7 ET,1, BEAM3 R,1,B*H,B*H*H*H/12,H MP,EX,1,2E11 MP,NUXY,1,0.3 K,1,0,0,0 K,2,L,0,0 LSTR,1,2 LESIZE,1,,,50 LMESH,1 FINISH /SOLU DK,1,UX DK,1,UY DK,2,UX DK,2,UY SFBEAM,ALL,1,PRES,5000 SOLVE SAVE FINISH

优化设计实例—梁的优化设计

/POST1 ETABLE,E_VOL,VOLU SSUM *GET,V_TOT,SSUM,,ITEM,E_VOL NSORT,U,Y *GET,UY_MIN,SORT,,MIN UY_MAX=ABS(UY_MIN) FINISH 2. 优化控制文件 !File:EXAMPLE26_OPT.TXT /FILNAME, EXAMPLE26 /OPT
50

OPCLR FINISH /CLEAR /INPUT, EXAMPLE26,LGW /OPT OPANL, EXAMPLE26,LGW OPVAR,B,DV,0.05,0.1,0.001 OPVAR,H,DV,0.05,0.1,0.001 OPVAR,UY_MAX,SV,0,2E-4,1E-5 OPVAR,V_TOT,OBJ,,,1E-5 OPSAVE, EXAMPLE26,OPT OPTYPE, FIRST OPFRST,30 OPEXEC OPLIST,ALL FINISH 3. 求解方法 先分别以文件名 EXAMPLE26.LGW、EXAMPLE26_OPT.TXT 将优化分析文件和优化控制文件存储在 ANSYS 的工作文件夹里,再在 ANSYS 的输入窗口输入/ INPUT, EXAMPLE26_OPT,TXT,回车,开始求 解。

51

第 27 例
1. 优化分析文件

优化设计实例—曲柄摇杆机构的优化设计

!File:EXAMPLE27.LGW !给定变量初值 PI=3.1415926 A=2 B=8 C=7.5 D=9.5 AX=1 AY=4 BATA_OPT=PI/16 K=7 GAMA=PI/3 !建立有限元模型 /PREP7 BATA=BATA_OPT-PI/2

!设计变量杆长 a !设计变量杆长 b !设计变量杆长 c !设计变量杆长 d !设计变量坐标 xA !设计变量坐标 yA !设计变量 !设计变量杆长 k !设计变量 γ

!变量 BATA 的取值范围为 [? π , π ] ,但 ANSYS 要求设计变量大于 2 2

!零,故将变量 BATA 转化为变量 BATA_OPT =BATA + OMGA1=0.5 T=60/OMGA1 ET,1,COMBIN7 ET,2,BEAM4 MP,EX,1,2E11 MP,PRXY,1,0.3 MP,DENS,1,1E-14 R,1,1E9,1E3,1E3,0 R,2,4E-4,1.3333E-8,1.3333E-8,0.02,0.02

π ,BATA_OPT∈ [0, π] 。 2

!曲柄转速(r/min) !曲柄转动一周时间(s) !铰链单元 !梁单元用于模拟杆 !材料模型,弹性模量 !泊松比 !密度近似为零,忽略质量 !铰链单元的实常数 !梁单元的实常数。横截面面积、惯性矩、 !惯性矩、横截面高度、横截面高度 COS_SETA1=((A+B)*(A+B)+D*D-C*C)/2/(A+B)/D !θ1 的余弦 *IF,COS_SETA1,GE,-1,AND,COS_SETA1,LE,1,THEN !计算 θ1 SETA1=ACOS(COS_SETA1) *ELSE SETA1=0 *ENDIF BX=AX+A*COS(SETA1+BATA) !B 点坐标 BY=AY+A*SIN(SETA1+BATA) CX=BX+B*COS(SETA1+BATA) !C 点坐标 CY=BY+B*SIN(SETA1+BATA) DX=AX+D*COS(BATA) !D 点坐标
52

DY=AY+D*SIN(BATA) KX=BX+K*COS(BATA+SETA1+GAMA) KY=BY+K*SIN(BATA+SETA1+GAMA) N,1,AX,AY N,2,BX,BY N,3,BX,BY N,4,CX,CY N,5,CX,CY N,6,DX,DY N,7,BX,BY,-1 N,8,CX,CY,-1 N,9,KX,KY TYPE,1 REAL,1 E,2,3,7 E,4,5,8 TYPE,2 REAL,2 E,1,2 E,3,4 E,5,6 E,3,9 E,4,9 FINISH !求解 /SOLU ANTYPE,TRANS NLGEOM,ON DELTIM,T/100 KBC,0 TIME,T OUTRES,BASIC,ALL AUTOTS,ON CNVTOL,F,1,0.1 CNVTOL,M,1,0.1 D,ALL,UZ D,ALL,ROTX D,ALL,ROTY D,1,ROTZ,2*PI-0.001 D,1,UX D,1,UY D,6,UX D,6,UY SOLVE

!M 点坐标 !创建节点

!创建铰链单元 !A 点铰链 !B 点铰链 !创建梁单元模拟各杆 !杆 AB !杆 BC !杆 CD !杆 BM !杆 CM

!进入求解器 !瞬态分析 !打开大变形选项 !指定载荷子步长度 !斜坡载荷 !时间为 T !输出控制 !打开自动步长 !收敛控制 !约束所有节点 z 方向位移 !约束所有节点绕 x 轴转动 !约束所有节点绕 y 轴转动 !节点 1 绕 z 轴转动一周,即曲柄转动一周 !节点 1 为固定铰链 !节点 6 为固定铰链 !解答

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SAVE !保存 FINISH !提取数据 /POST26 *DIM,X_OBJ,ARRAY,10 !定义数组,保存目标位置点的坐标 *DIM,Y_OBJ,ARRAY,10 X_OBJ(1)=9.5 Y_OBJ(1)=8.26 X_OBJ(2)=9 Y_OBJ(2)=8.87 X_OBJ(3)=7.97 Y_OBJ(3)=9.51 X_OBJ(4)=5.65 Y_OBJ(4)=9.94 X_OBJ(5)=4.36 Y_OBJ(5)=9.7 X_OBJ(6)=3.24 Y_OBJ(6)=9 X_OBJ(7)=3.26 Y_OBJ(7)=8.36 X_OBJ(8)=4.79 Y_OBJ(8)=8.11 X_OBJ(9)=6.58 Y_OBJ(9)=8 X_OBJ(10)=9.12 Y_OBJ(10)=7.89 X_OBJ_MIN=3.24 X_OBJ_MAX=9.5 NSOL,2,9,UX !定义变量,存储节点 9 即 M 点的位移 NSOL,3,9,UY *DIM,X9,ARRAY,100 !定义数组,保存轨迹点的坐标 *DIM,Y9,ARRAY,100 VGET,X9,2 !将变量 2、3 存储于数组 X9、Y9 中 VGET,Y9,3 *DO,I,1,100 !由轨迹点位移计算轨迹点坐标 X9(I)=KX+X9(I) Y9(I)=KY+Y9(I) *ENDDO G2=B+C-A-D !提取状态变量的值 G3=C+D-A-B G4=B+D-A-C COS_GAMA1=(B*B+C*C-(D-A)*(D-A))/2/B/C COS_GAMA2=(B*B+C*C-(D+A)*(D+A))/2/B/C *IF,COS_GAMA1,GE,-1,AND,COS_GAMA1,LE,1,THEN

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G5=ACOS(COS_GAMA1)-30*PI/180 *ELSE G5=-1 *ENDIF *IF,COS_GAMA2,GE,-1,AND,COS_GAMA2,LE,1,THEN G6=150*PI/180-ACOS(COS_GAMA2) *ELSE G6=-1 *ENDIF F2=0 *DO,I,1,10 !计算目标变量的值 F2=F2+(Y9(I*10)-Y_OBJ(I))*(Y9(I*10)-Y_OBJ(I))+(X9(I*10)-X_OBJ(I))*(X9(I*10)-X_OBJ(I)) *ENDDO FINISH 2. 优化控制文件 !File:EXAMPLE27_OPT.TXT /OPT OPCLR FINISH /CLEAR /INPUT, EXAMPLE27,LGW /OPT OPANL, EXAMPLE27,LGW OPVAR,A,DV,0.1,10,0.001 OPVAR,B,DV,0.1,10,0.001 OPVAR,C,DV,0.1,10,0.001 OPVAR,D,DV,0.1,10,0.001 OPVAR,AX,DV,0.1,5,0.001 OPVAR,AY,DV,0.1,5,0.001 OPVAR,BATA_OPT,DV,0.1,PI,0.001 OPVAR,K,DV,0,10,0.001 OPVAR,GAMA,DV,0.1,PI,0.001 OPVAR,G2,SV,0,100 OPVAR,G3,SV,0,100 OPVAR,G4,SV,0,100 OPVAR,G5,SV,0,100 OPVAR,G6,SV,0,100 OPVAR,F2,OBJ,,,0.001 OPSAVE, EXAMPLE27,OPT OPTYPE,FIRST OPEXEC OPLIST,ALL FINISH
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!进入优化设计处理器 !清除优化设计数据库 ! !清除 ANSYS 数据库 !进行初始分析以提取变量

!指定分析文件 !定义优化设计变量。最小值、最大值、公差

!定义状态变量。最小值、最大值

!定义目标变量。公差 !保存优化数据库 !指定优化设计方法 !求解 !列表所有方案,见图 27-2。

3. 求解方法 先分别以文件名 EXAMPLE27.LGW、EXAMPLE27_OPT.TXT 将优化分析文件和优化控制文件存储在 ANSYS 的工作文件夹里,再在 ANSYS 的输入窗口输入/ INPUT, EXAMPLE27_OPT,TXT,回车,开始求 解。

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第 28 例
/CLEAR /FILNAME, EXAMPLE28 /PREP7 ET,1, BEAM3 R,1,7.069e-4,3.976e-8,0.03 MP,EX,1,2E11 MP,NUXY,1,0.3 K,1,0,0,0 K,2,0.5,0,0 LSTR,1,2 HPTCREATE,LINE,1, , RATIO,0.4 LESIZE,1,,,50 LMESH,1 FINISH /SOLU DK,1,UX DK,1,UY DK,2,UX DK,2,ROTZ FK,3,FY,-500 LSWRITE,1 DKDELE,2,ALL DK,2,UY LSWRITE,2 LSSOLVE,1,2,1 FINISH /POST1 LCDEF,1,1 LCDEF,2,2 LCASE,1 LCOPER,ADD,2 PLDISP FINISH

载荷工况组合实例—简支梁

57

第 29 例

模型力学特性计算实例—液体容器倾翻特性的研究

/CLEAR /FILNAME, EXAMPLE29 /PREP7 MP,DENS,1,7800 MP,DENS,2,1000 WPROT,0,-90,0 CONE,1,1.521,0.923,-2.031,0,360 CONE,0.92,1.42,0.923,-1.931,0,360 VSBV,1,2 NUMCMP,VOLU CONE,0.92,1.3145,0.327,-1.931,0,360 VSEL,S,,,1 VATT,1 VSEL,S,,,2 VATT,2 VSUM *GET,V2,VOLU,2,VOLU VSEL,ALL VDELE,2,,,1 CONE,0.92,1.42,0.923,-1.931,0,360 VSEL,S,,,2 WPOFF,0,0,0.5 WPROT,0,0,-10 VSBW,ALL VDELE,4,,,1 VATT,2 VSUM *DO,I,1,25 NUMCMP,VOLU WPOFF,0,0,-0.01 VSBW,ALL VDELE,3,,,1 VATT,2 VSUM *GET,V4,VOLU,4,VOLU *IF,ABS(V4-V2),LT,5E-2,THEN *EXIT *ELSE J=1

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*ENDIF *ENDDO VSEL,ALL VSUM FINISH

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第 30 例

单元生死应用实例—焊接模拟
!清除数据库,新建文件 !改变工作名

/CLEAR /FILNAME, EXAMPLE30 !开始热分析 !建立有限元模型 /PREP7 ET,1,PLANE77 ET,2,SOLID90 V=0.005 LENGTH=0.05 L_NUMBER=LENGTH/V MPTEMP,1,0,300,600,1000,1300,2000 MPDATA,DENS,1,1,7859,7770,7659,7600,6750,6750 MPDATA,DENS,2,1,7859,7770,7659,7600,6750,6750 MPDATA,C,1,1,450,514,967,1370,2800,2000 MPDATA,C,2,1,450,514,967,1370,2800,2000 MPDATA,KXX,1,1,67,53,39,31, 20,20 MPDATA,KXX,2,1,67,53,39,31,20,20 RECT,0,0.10,0,0.01 K,5,0.002 K,6,0.002,0.002 K,7,0.00662,0.01 K,8,0.00339,0.01112 K,9,0,0.0115 LARC,7,9,8 A,1,5,6,7,9 AGEN,2,2 ASBA,1,2 AGLUE, ALL K,20,0,-0.00385 CIRCLE,20,0.008,,,90 CIRCLE,20,0.012,,,90 ASBL,3,4 ASBL,2,5 ESIZE, 0.00075 SMRTSIZE,7 MSHAPE,1 AMESH,3,5,1 ESIZE, 0.003 AMESH,1 EXTOPT,ESIZE,L_NUMBER

!进入前处理器 !平面热单元 !空间热单元 !焊接线速度 !钢板沿焊缝方向长度 !沿焊缝方向单元段数 !定义材料模型,温度表 !密度 !比热 !传导系数 !因为对称,创建 1/2 实体模型

!划分单元

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EXTOPT,ACLEAR,1 MAT,1 VEXT,3,5,1,,,LENGTH MAT,2 VEXT,1,,,,,LENGTH NUMMRG,NODE ALLS FINISH !热分析求解 !作稳态热分析施加初始温度 /SOLU AUTOTS,ON OUTPR,NSOL,ALL OUTRES,NSOL,ALL KBC,1 ANTYPE,TRANS TIMINT,OFF NSUBST,4 D,ALL,TEMP,20 TIME,0.01 SOLVE !杀死焊缝单元 ESEL,S,MAT,,1 EKILL,ALL ESEL,ALL TIME,0.02 SOLVE !开始激活焊缝单元,进行瞬态热分析 TIMINT,ON,THER DDELE,ALL,TEMP TIME=0.02 *DIM,QQ,ARRAY,8 *DIM,E_NODE,ARRAY,20 *GET,ELEM_MAX, ELEM, 0, NUM,MAX *GET,ELEM_MIN, ELEM, 0,NUM,MIN *GET,NODE_MAX, NODE, 0, NUM,MAX *GET,NODE_MIN, NODE, 0,NUM,MIN *DIM,NODE_AVE,ARRAY,NODE_MAX *DO,J,NODE_MIN,NODE_MAX ALLS *IF,NSEL(J),EQ,1,THEN NSEL,S,,,J ESLN,S *GET,NODE_AVE(J), ELEM, 0,COUNT

!挤出

!合并两次挤出产生的位置重合的节点

!进入求解器 !打开自动时间步长 !输出控制 !阶跃载荷 !瞬态分析 !关闭时间积分 !子步数目 !施加初始温度 !时间 !解答 !选择焊缝单元 !杀死单元

!打开时间积分,进行瞬态分析 !删除前面用 D 命令施加的温度载荷 !变量 TIME 的初始值 !定义数组,存储单元节点热流密度 !定义数组,存储单元所属节点编号 !获取最大单元号 !获取最小单元号 !获取最大节点号 !获取最小节点号 !定义数组,存储节点相邻单元数量 !计算节点相邻单元数量,循环开始

!选择节点 J !选择节点 J 相邻单元 !获取单元数量

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*ENDIF *ENDDO !计算节点相邻单元数量,循环结束 ALLS *DO,KK,1,3 !计算三层焊缝温度场,循环开始 R=0.02 !电弧有效加热半径 *IF,KK,EQ,1,THEN !第一层焊缝的基本参数 Q=3200*0.7 !输入热量 QMAX=3*Q/3.1415926/R/R !变量 XC= 0.11190E-02 !第一层焊缝质心 X 坐标 YC= 0.21451E-02 !第一层焊缝质心 Y 坐标 V_NUM=2 !第一层焊缝的体号 TIME_INC=LENGTH/L_NUMBER/V !第一层焊缝时间增量 *ENDIF *IF,KK,EQ,2,THEN !第二层焊缝的基本参数 Q=4500*0.7 QMAX=3*Q/3.1415926/R/R XC= 0.20373E-02 YC= 0.60454E-02 V_NUM=1 TIME_INC=LENGTH/L_NUMBER/1.5/V *ENDIF *IF,KK,EQ,3,THEN !第三层焊缝的基本参数 Q=5800*0.7 QMAX=3*Q/3.1415926/R/R XC= 0.29574E-02 YC= 0.94733E-02 V_NUM=3 TIME_INC=LENGTH/L_NUMBER/2/V *ENDIF *DO,J,1,L_NUMBER !从头至尾激活第 KK 层焊缝,开始 SFEDELE,ALL,ALL,HFLUX !删除以前施加的热流密度 VSEL,S,,,V_NUM !选择第 KK 层焊缝所对应的体 ESLV,S,1 !选择体上单元即第 KK 层焊缝单元 NSEL,R,LOC,Z,(J-1)*LENGTH/L_NUMBER+0.001,J*LENGTH/L_NUMBER-0.001 !选择第 J 行单元的中间节点 ESLN,R !选择第 KK 层第 J 行单元 EALIVE,ALL !激活单元 ALLS ZC=(J-0.5)*LENGTH/L_NUMBER !第 KK 层第 J 行单元质心 Z 坐标 *DO,I,ELEM_MIN,ELEM_MAX !计算施加单元热流密度,循环开始 *IF,ESEL(I),EQ,1,THEN ESEL,S,,,I !选择第 I 个单元 *DO,K,1,8 !计算第 I 单元前 8 个节点热流密度 *GET,E_NODE(K),ELEM,I,NODE,K !获取第 I 个单元第 K 个节点的编号

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SS=E_NODE(K) DISP=SQRT((NX(SS)-XC)*(NX(SS)-XC)+(NY(SS)-YC)*(NY(SS)-YC)+(NZ(SS)-ZC)*(NZ(SS)-ZC)) !计算节点到热中心点(质心)的距离 EEE=3*DISP*DISP/R/R !变量 *IF,EEE,LT,25,THEN QQ(K)=QMAX*EXP(-EEE)/NODE_AVE(E_NODE(K)) !第 K 个节点的热流密度 *ELSE QQ(K)=0 *ENDIF *ENDDO *IF,QQ(1)+QQ(2)+QQ(3)+QQ(4),NE,0,THEN SFE,I,1,HFLUX,,QQ(1), QQ(2), QQ(3),QQ(4) !在第 I 个单元第一个面上加热流密度 *ENDIF *IF,QQ(1)+QQ(2)+QQ(5)+QQ(6),NE,0,THEN SFE,I,2,HFLUX,,QQ(1), QQ(2), QQ(6),QQ(5) !在第 I 个单元第二个面上加热流密度 *ENDIF *IF,QQ(6)+QQ(2)+QQ(3)+QQ(7),NE,0,THEN SFE,I,3,HFLUX,,QQ(2), QQ(3), QQ(7),QQ(6) !在第 I 个单元第三个面上加热流密度 *ENDIF *IF,QQ(1)+QQ(4)+QQ(5)+QQ(7),NE,0,THEN SFE,I,5,HFLUX,,QQ(1), QQ(4), QQ(7),QQ(5) !在第 I 个单元第五个面上加热流密度 *ENDIF *IF,QQ(5)+QQ(6)+QQ(7)+QQ(8),NE,0,THEN SFE,I,6,HFLUX,,QQ(5), QQ(6), QQ(7),QQ(8) !在第 I 个单元第六个面上加热流密度 *ENDIF ALLS *ENDIF *ENDDO !计算施加单元热流密度,循环结束 ALLS ASEL,S,LOC,Z,0 !选择边界面 ASEL,A,LOC,Z, LENGTH ASEL,A,,,20,22,1 ASEL,A,,,17 SFA,ALL,1,CONV,30,20 !施加对流边界条件 ALLS TIME=TIME+TIME_INC !时间变量 NSUBST,5,10,3 !步长 LNSRCH,ON !打开线性搜索 TIME,TIME !设定分析时间 SOLVE *ENDDO !从头至尾激活第 KK 层焊缝,结束 TIME=TIME+3600 !空冷 3600s TIME,TIME SFEDELE,ALL,ALL,HFLUX !空冷

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SOLVE !解答 *ENDDO !计算三层焊缝温度场,循环结束 SAVE !保存 FINI !开始结构分析 !前处理 /PREP7 ETCHG,TTS !将热单元转换为结构单元 ET,3,COMBIN14 !弹簧单元 R,1,1000 !弹簧刚度 MPTEMP !以下定义材料模型 MPTEMP,1, 0,300,600,1000,1300,1400,2000 !温度表 MPDATA,EX,1,1,2E11,1.86E11,1.35E11,2E10,2E7, 2E7, 2E7 !弹性模量 MPDATA,EX,2,1,2E11,1.86E11,1.35E11,2E10,2E7, 2E7, 2E7 MPDATA,PRXY,1,1,0.33,0.33,0.35,0.36,0.4,0.4 !泊松比 MPDATA,PRXY,2,1,0.33,0.33,0.35,0.36,0.4,0.4 MPDATA,ALPX,1,1,12E-6,12.6E-6,13.0E-6,13.4E-6,13.7E-6,14E-6,13.7E-6 !线膨胀系数 MPDATA,ALPX,1,1,12E-6,12.6E-6,13.0E-6,13.4E-6,13.7E-6,14E-6,13.7E-6 MP,REFT,1,20 !参考温度 MP,REFT,2,20 TB,BKIN,1,5 TBTEMP,15 TBDATA,1,280E6,2E9 !屈服极限,切向模量 TBTEMP,800 TBDATA,1,10E6,1E7 TBTEMP,2500 TBDATA,1,10E6,1E6 TBCOPY,BKIN,1,2 !复制材料 BKIN 数据 !以下创建弹簧单元,目的是防止结构产生较大的刚性位移,导致计算不收敛,由于弹簧 !刚度极小,弹簧力不大,对分析不会产生影响 K,50,0.11,0.01 K,51,0.11,0.01,LENGTH L,50,3 L,51,25 TYPE,3 REAL,1 ESIZE,,1 LMESH,49,50,1 FINISH !结构分析的求解 /SOLU DK,10,ALL !在关键点上施加全约束,不妨碍热变形 DA,8, UX !在对称面上施加垂直该面方向约束 DA,14, UX

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DA,18, UX ANTYPE,TRANS !瞬态分析 OUTPR,ALL,ALL !输出控制 OUTRES,ALL,ALL KBC,0 AUTOTS,ON !杀死焊缝单元 TIME,0.02 ESEL,S,MAT,,1 EKILL,ALL !杀死单元 ESEL,ALL NSUBST,1 SOLVE TIME=0.02 !以下顺序激活焊缝单元 *DO,KK,1,3 *IF,KK,EQ,1,THEN V_NUM=2 TIME_INC=LENGTH/L_NUMBER/V *ENDIF *IF,KK,EQ,2,THEN V_NUM=1 TIME_INC=LENGTH/L_NUMBER/1.5/V *ENDIF *IF,KK,EQ,3,THEN V_NUM=3 TIME_INC=LENGTH/L_NUMBER/2/V *ENDIF *DO,J,1,L_NUMBER VSEL,S,,,V_NUM ESLV,S,1 NSEL,R,LOC,Z,(J-1)*LENGTH/L_NUMBER+0.001,J*LENGTH/L_NUMBER-0.001 ESLN,R EALIVE,ALL ALLS TIME=TIME+TIME_INC BFDELE,ALL,TEMP !删除以前施加的温度载荷 LDREAD,TEMP,,,TIME,,,RTH !从热分析的结果文件读温度载荷 NSUBST,10,50,3 LNSRCH,ON TIME,TIME NLGEOM,ON !打开大变形选项 SOLVE *ENDDO

65

TIME=TIME+3600 BFDELE,ALL,TEMP LDREAD,TEMP,,,TIME,,,RTH TIME,TIME SOLVE SAVE *ENDDO FINI !查看结果 /POST1 !进入普通后处理器 SET, , , , , 1.02 !从结果文件读 1.02s 的结果 PLNSOL, BFE,TEMP, 0,1.0 !温度云图 PLNSOL, S,EQV, 0,1.0 !应力云图 FINI !重复以上过程,得到第一道焊缝不同时间的温度云图如图 30-3 !0.02s 至 10.02s 为焊接过程,10.02s 至 3610.02s 为冷却过程

66

第 31 例

利用 MPC 技术对 SOLID-SHELL 单元进行连接实例 —简支梁

31.5 命令流:
/CLEAR /FILNAME,EXAMPLE31 /PREP7 ET,1,SOLID45 ET,2,SHELL63 ET, 3, TARGE170 KEYOPT,3,5,1 ET, 4, CONTA175 KEYOPT,4,2,2 KEYOPT,4,12,5 R,1,0.02 R,2 R,3 R,4 R,5 MP,EX,1,2E11 MP,PRXY,1,0.3 /VIEW,1,1,1,1 BLOCK,-0.15,0.15,-0.15,0.15,0,1-.02 VDELE,1,,,0 ADELE,1,2,1,1 BLOCK,-0.15,0.15,-0.15,0.15,1-.02,1 K,20,0,0,0.98 K,21,0,0.1,0.98 K,22,0,0.1,1 K,23,0,0.075,1 K,24,0,0.075,1.3 K,25,0,0,1.3 LSEL,NONE L,20,21 L,21,22 L,22,23 L,23,24 L,24,25 L,25,20 LFILLT,27,28,0.025
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AL,ALL VROTAT,11,,,,,,20,25 ALLS VOVLAP,ALL AATT,1,1,2 ESIZE,0.02 MSHAPE,0 MSHKEY, 1 AMESH,3,6,1 VATT,1,1,1 ESIZE,0.01 SMRTSIZE,5 MSHAPE,1 MSHKEY, 0 VMESH,ALL ALLS ASEL,S,,,47 NSLA,S,1 TYPE, 3 REAL, 2 ESURF ALLS LSEL,S,,,5 NSLL,S,1 TYPE, 4 REAL ,2 ESURF ALLS ASEL,S,,,47 NSLA,S,1 TYPE, 3 REAL, 3 ESURF ALLS LSEL,S,,,6 NSLL,S,1 TYPE, 4 REAL ,3 ESURF ALLS ASEL,S,,,47 NSLA,S,1 TYPE, 3 REAL, 4

68

ESURF ALLS LSEL,S,,,7 NSLL,S,1 TYPE, 4 REAL ,4 ESURF ALLS ASEL,S,,,47 NSLA,S,1 TYPE, 3 REAL, 5 ESURF ALLS LSEL,S,,,8 NSLL,S,1 TYPE, 4 REAL ,5 ESURF ALLS SHSD, 2, CREATE SHSD, 3, CREATE SHSD, 4, CREATE SHSD, 5, CREATE FINISH /SOLU ASEL,S,,,21,27,6 NSLA,S,1 D,ALL,ALL ALLS NSEL,S,LOC,Z,0 D,ALL,UZ ALLS SFA,4,1,PRES,-1E6*3/2.88 SFA,8,1,PRES,-1E6*3/2.88 SOLVE FINISH /POST1 PLNSOL,S,EQV,0,1 FINISH

69

31.6 结构模型全部采用 SOLID 单元的分析命令流
/CLEAR /FILNAME,EXAMPLE31 /PREP7 ET,1,SOLID186 MP,EX,1,2E11 MP,PRXY,1,0.3 /VIEW,1,1,1,1 BLOCK,-0.15,0.15,-0.15,0.15,0,1 BLOCK,-0.15+0.02,0.15-0.02,-0.15+0.02,0.15-0.02,0,1-0.02 VSBV,1,2 K,20,0,0,0.98 K,21,0,0.1,0.98 K,22,0,0.1,1 K,23,0,0.075,1 K,24,0,0.075,1.3 K,25,0,0,1.3 LSEL,NONE L,20,21 L,21,22 L,22,23 L,23,24 L,24,25 L,25,20 LFILLT,27,28,0.025 AL,ALL VROTAT,1,,,,,,20,25 ALLS VOVLAP,ALL SMRTSIZE,7 ESIZE,0.01 LSEL,S,,,9,12,1 LSEL,A,,,21,24,1 LESIZE,ALL,0.025 ALLS MSHAPE,1 VMESH,14 VSEL,U,,,14 ESIZE,0.025 SMRTSIZE,5 VMESH,ALL FINISH

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/SOLU DA,13,UZ ASEL,S,,,22,28,6 NSLA,S,1 D,ALL,ALL ALLS SFA,4,1,PRES,1E6 SOLVE FINISH /POST1 PLNSOL,S,EQV,0,1 FINISH

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