Ansys综合实例含40例.docx
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Ansys综合实例含40例
第一章前处理
第1例关键点和线的创建实例—正弦曲线
FINISH
/CLEAR,NOSTART
/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,,,,LOWLCOMB,ALL,,0
FINISH
/CLEAR,NOSTART
/PREP7
PI=3.14159
J=0
*DO,I,0,PI,PI/10.0
J=J+1
X=I
Y=SIN(I)
I=I+1
K,J,X,Y
*ENDDO
BSPLIN,1,2,3,4,5,6
BSPLIN,6,7,8,9,10,11
csys,4
KWPAVE,11
LSYMM,y,1,2,,,,0
KWPAVE,11
LSYMM,x,3,4,,,,1
以上程序有意没算到2
为了使用几个命令
第2例工作平面的应用实例—相交圆柱体
[本例提示]通过相交圆柱体的创建,本例主要介绍了工作平面的使用方法。
通过本例,读者可以了解并掌握工作平面与所创建体的位置、方向的关系,学习工作平面的设置、偏移、旋转和激活为当前坐标系的方法。
FINISH
/CLEAR,NOSTART
/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
第3例复杂形状实体的创建实例—螺栓
[本例提示]在使用ANSYS软件进行结构分析时,建立实体模型是最复杂最难以掌握的一个过程。
因此,有必要熟练掌握实体模型的创建。
本例使用ANSYS软件提供的各种建模工具,对复杂形状实体的创建进行了练习。
/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
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
第4例复杂形状实体的创建实例—杯子
[本例提示]为了进一步掌握实体模型的创建方法和技巧,本例使用ANSYS软件提供的各种建模工具,对复杂形状实体的创建继续进行练习。
/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
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
第二章结构静力学分析
第5例杆系结构的静力学分析实例—平面桁架
[本例提示]介绍了利用ANSYS求解杆系结构的方法、步骤和过程。
/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,SAFINISH
第6例杆系结构的静力学分析实例—悬臂梁
[本例提示]介绍了利用ANSYS对杆系结构进行静力学分析的方法、步骤和过程。
/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
第7例平面问题的求解实例—厚壁圆筒问题
[本例提示]介绍了利用ANSYS进行静力学分析的方法、步骤和过程,并对将空间问题简化为平面问题的条件、方法进行了简单的介绍。
/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!
定义2个点
PPATH,1,30!
第一个节点30号(左端)
PPATH,2,1!
第二个节点1号(右端)
PDEF,SR,S,X!
描述径向应力
PDEF,ST,S,Y!
描述周向应力
PLPATH,SR,ST!
绘应力图
FINISH
第8例静力学问题的求解实例—扳手的受力分析
[本例提示]介绍了利用ANSYS进行空间问题静力学分析的方法、步骤和过程。
/CLEAR,nostart
/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
/POST1
/VIEW,1,1,1,1
PLDISP,2
PLNSOL,S,EQV,0,1
NWPAVE,362
/TYPE,1,SECT
/CPLANE,0
/REPLOT
FINISH
第9例各种坐标系的应用实例—圆轴扭转分析
[本例提示]通过本例介绍了ANSYS坐标系统的特点、应用场合和使用方法、步骤,并使用解析解对有限元分析结果进行了验证。
/CLEAR,nostart
/FILNAME,EXAMPLE_9
/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
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
第三章结构动力学分析
第10例模态分析实例—均匀直杆的固有频率分析
[本例提示]介绍了利用ANSYS进行结构固有频率和振型研究即模态分析的方法、步骤和过程,并使用解析解对有限元分析结果进行了验证。
/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
第11例模态分析实例—斜齿圆柱齿轮的固有频率分析
[本例提示]本例介绍了对一个复杂结构—斜齿圆柱齿轮模型的创建方法,以及利用ANSYS对其进行固有频率和振型研究即模态分析的方法、步骤和过程。
/CLEAR,NOSTART
/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!
柱坐标
VEXT,1,,,0,18.412,20E-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
/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
第12例有预应力模态分析实例—弦的横向振动
[本例提示]介绍了利用ANSYS进行有预应力模态分析的方法、步骤和过程,并使用解析解对有限元分析结果进行了验证。
有预应力模态分析分为两个大的步骤:
首先进行结构静应力分析,并把静应力作为预应力施加在模型上;然后进行模态分析。
/CLEAR
/FILNAME,EXAMPLE12
图12-22模态动画对话框
/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
SET,NEXT
PLDI
ANMODE,10,0.5,,0
FINISH
第14例瞬态动力学分析实例—凸轮从动件运动分析
[本例提示]介绍了利用ANSYS进行瞬态动力学分析的方法、步骤和过程,并使用解析解对有限元分析结果进行了验证。
瞬态动力学分析时,结构上的载荷可以随时间呈任意规律变化,在任意一个载荷步内,约束和载荷都可以重新设定。
/CLEAR,NOSTART
/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!
定义面的属性、参数、类型、坐标系、横截面的命令
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!
加约束1
ALLSEL,ALL
ANTYPE,TRANS
OUTRES,ALL,ALL
FK,4,FY,-1000!
加载荷
TIME,10!
第1个载荷步
AUTOTS,ON
DELTIM,0.5,0.2,1!
定义载荷步时间步长,最小最小步长0.2最大1
KBC,0!
指定荷载步内的斜坡形荷载
DK,1,UY,0.02!
加约束2
LSWRITE,1
TIME,20!
第2个载荷步
LSWRITE,2
TIME,35!
第3个载荷步
DK,1,UY,0!
加约束3
LSWRITE,3
TIME,45!
第4个载荷步
LSWRITE,4
LSSOLVE,1,4,1
SAVE
FINISH
/POST26
NSOL,2,1,U,Y,uy
DERIV,3,2,1!
求导计算2对1的导数赋值给3
DERIV,4,3,1
PLVAR,2,3
PLVAR,2,4
FINISH
第15例连杆机构运动分析实例—曲柄滑块机构
[本例提示]介绍了利用ANSYS对连杆机构进行运动学分析的方法、步骤和过程,并使用解析解对有限元分析结果进行了验证。
着重介绍了曲柄滑块机构模型的创建以及约束的施加方法,介绍了三维铰链单元COMBIN7的使用方法。
/CLEAR,NOSTART
/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
NLGEOM,ON!
打开大变形选项
DELTIM,T/70
KBC,0!
每个子荷载步的荷载从前一个荷载步到本荷载步线性内插(斜坡形)
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!
时间和频率总为变量1
NSOL,2,4,U,X!
将节点4的位移X定义为2号变量
DERIV,3,2,1!
将2号变量对1号变量的导数定义为3号变量_速度
DERIV,4,3,1!
将3号变量对1号变量的导数定义为4号变量_加速度
PLVAR,2!
绘制2号变量(位移)随时间变化曲线
PLVAR,3!
绘制3号变量(速度)随时间变化曲线
PLVAR,4!
绘制4号变量(加速度)随时间变化曲线
FINISH
第四章非线性分析
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
[本例提示]介绍了利用ANSYS对结构进行接触分析的方法、步骤和过程,着重介绍了建立面—面接触对的方法和难点,为解决实际应用问题奠定了基础。
/CLEAR