桁架的ansys分析Word格式.docx
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进入Preprocessor,ElementType,Add/Edit/Delete…Add…Link:
2Dspar1,点击OK(返回到ElementTypes窗口),Close。
DefinedElerrcmTypes:
NONEDEFINED
Add十
Opticrra.,,
Delete
Close
Help
4.定义材料参数
ANSYSMainMenu:
PreprocessorMaterialPropsMaterialModelsStructural
LinearElasticIsotropic:
EX:
2.95e11(弹性模量),PRXY:
0.3(泊松比)OK,
ADefi忖白护广詡Mod^lBfP^vicr
MateiidEditFavoriteHelp
MdterialMedelsDefined
MdterialModelsA^dildble
盘LinearIsotropic
iAFavorites潞Structural虐Ilinear
•Elastic$僮仓Orthotropic$AnisotropiciaNonlinertr毬DensityanTlieirndlEypaiibionstDarrpinq
'
EfCn^-■■■■rxii厂—frvt-
u
otropic
ALinearIsotropicPropertiesfo*-Materal讯」mber1
LinealIsotropicMaterialPropertiesforMat?
mINumber1
5.定义实常数以确定单元的截面积
PreprocessorRealConstants…Add/Edit/DeleteAddType1
tOKtRealConstantSetNo:
1(第1号实常数),AREA:
1e-4(单元的截面积)OK>
6.创建节点
PreprocessorModelingCreatNodes^InActiveCS;
Node
number1:
(0,0,0)Apply,Nodenumber2:
(0.4,0,0)Apply,Nodenumber3:
(0.4,0.3,0Apply,Nodenumber4:
(0,0.3,0)OK
~N]匚ireateNodesinActiveCoordinateSystem
NODENodt*number
2
X+¥
ZLocationinactiveCS
Q4|
THXYJHYZ.THZX
Rotationangles(degree£
h
CiK|Apply|fmntcl|Help
7.生成单元
PreprocessorModelingCreateElementsElemAttributes,
(接受默认值),AutonumberedThrunodesOK^选择节点1,2宀Apply,创建单元1.
选择节点2,Apply
tOK创建单元4.
后显示节点号,单兀号:
,创建单元2.选择节点1,3tApply,创建单元3.选择节点3,4
PlotCtrlstNumberingt,将NodeNumber,ELE/Attribnumbering
打开。
如图所示
后进入Plot,Multi-Plots,重画图形。
(•Pick
ElementsfromNodes
CP-31yucr.「Circle
「Loop
Maxlnxut
ModeNu・
Apply
Rcoet
Cancel
Fick人LI
|APki*NUTt^rirgCQntTp-S
1—i]
1[/PNUIM|jPlciiNumberirtgC-oiiFroli
1KPiun^e^
厂off
HLJiMtLificnumbers
roh
AREAAreanumbers
厂on
VQLU1Volumemumbcf^
忡8ENodenumtiefi
(*g
eImi/Attribnumbeihng
TA£
NTdblrH曰m”
ron
MumprccorilouruMu码
phlU痒]Numbenngsfiawnwith
Coltrfs8lnumber
31
[/REPlOF]ReptoiuponOM^ppty?
|R«
plot
创
OK1血吶]
Cincipi|
Hplp
44a
8.施加约束和外载荷
节点1X和丫方向、节点2丫方向、节点4的X和Y方向位移约束
SolutionDefineLoadsApplyStructural
DisplacementOnNodes用鼠标选择节点1Apply宀Lab2DOFs:
UXUY,VALUE
0tApply;
用鼠标选择节点ApplyLab2DOFs:
UY,VALUE0Apply;
用鼠标选
择节点4tApplytLab2DOFs:
UX,UY,VALUE0tOK
ApplyU.HU1onNcde5
*Ei^k
CUnplclr
厂Eelygon
FCite丄4
广loop
cnun^=
=
4
Hiriinvyiw
1
STafie-
俗List-of
Itejna
厂Majs
r丄耳U
AAnplwU.ROTc?
『Nodes
[D|ApplyD»
s|pldLritii.'
nt!
>
!
llrROTjonNud*、
話■
Be3^^
Cin*el
PiclrAll
Lab2DOFstobecanstrdinted
Apply裕
]1Con&
tfintvaluethenc
VALUEDispacememvalue
OK|Appty]
ApplyLI.ROTuiNodes
I金
1*EJLcic厂Unpick
I
SSinyl^1厂Box
1PoTyff^n厂Circle
施加外载荷,在3节点处施加Y方向-25000N的力,在节点2施加X方向20000N的力。
Force/momentOnNodes宀用鼠标选择结构节点2Apply宀FX,VALUE:
20000宀
Applyt用鼠标选择结构节点ApplyFY,VALUE:
—25000OK
9.分析计算
ANSYSMainMenu:
SolutionSolveCurrentLSOK
Mie
S□LUT
IONOPTIONS
PROBLEMDIHEMSIONALITV..
2-D
DEGREESOFFREEDOM.**,..
UXUY
ANAL7SISTYPE
STATIC(STEhiDV-STATE)
GLOBALLYASSEMBLEDMATRIX..
SYMMETRIC
LOAD1
STEPOPTIONS
LDAO$TEPNUMBER
1
TIMEATENDOFTHELMDSTEP.
1.0000
NUMBEROF5UBSTEPS
1
STEPCHANGE&
OUNDAPVCONDITIONSNO
PRINTOUTPUTCONTROLS....
NOPRINTOUT
DATABASEOUTPUTCONTROLS,*・
-ALLDATAWRITTEN
FORTHELASTSUBSTEP
□
A/STATUSCommrird
10.结果显示
GeneralPostprocPlotResultsDeformedShape…Def
+UndeformedfOK(返回到PlotResults)fContourPlotfNodalSolu…fDOF
solutionfDisplacementvectorsum(可以看至U位移云图)
DISPUkCEMEin
5TEP-1SUB=1rTME=l
OMK=.271E-Q3
GeneralPostprocListResultsNodalsolutionDOFsolutiontDisplacementvectorsum(弹出的文本文件显示各个节点的位移)
/\PRNSOLCommand
File
PRINTUNODALSOLUTIONPERNODE
*****P0ST1NODALDEGREEOFFREEDOMLISTING杯脅"
LOADSTEP二1SUBSTEP二1
TIME=1.0000LOADCASE=0
THEFOLLOUINGDEGREEOFFREEDOMRESULTSAREINTHEGLOBALCOORDINATE
SYSTEM
NODE
UXUV
UZ
USUM
o.qoooo.oeoo
Q.00G6
o.eeee
027119E-030ooeo
0.06G6
027119E-03
3
0.56497£
-0^-0.222H6E-03
0・0000
0.22952E-03
斗
o.oooee.Goeo
0.0600
MAXIMUM
ABSOLUTEUALUES
23
UALUE
0.27119E-03-0.22246E-03
G.0OG9
0.27119E-O3
GeneralPostprocListResults
tOK(弹出的文本文件显示各个节点反力)
tReactionSolutALLitems
AListReactionSolution
I[PRRSOL]ListReactionSolution
LabItemtobelisted
StructforceIFX
■
FY
FZ
AllstrucforeF
StructmomentMX
二
MY
MZ
AllstrucmomeM
Allitems
OKApply|
(11)退出系统
ANSYSUtilityMenu:
FiletExit—>
SaveEverythingtOK
由图可知3杆件受力过大,应加以改进,如图所示在1,2;
3,4中点位置再加一杆。
25000N
V▲
==uoof
20000N
dOOnini
NODAXSOLUTION
STEP^l3UB=1
TIME=1U3UMRSY3=0DMX=・230E・033MX-.220E-03
H&
.Y12012
(AVG)
・230E-03
1\
0
・510E-O4
.102B-03
.153E"
02
・204E・02
・255E-04
・7E5E-04
.128E-03
・179E-03