桁架的ansys分析Word格式.docx

1、进入 Preprocessor , Element Type, Add/Edit/Delete AddLink : 2D spar 1 ，点击 OK （返回到 Element Types 窗口）, Close。Defined Elerrcm Types:NONE DEFINEDAdd十Opticrra.,DeleteCloseHelp4.定义材料参数ANSYS Mai n Menu: Preprocessor Material Props Material Models StructuralLinear Elastic Isotropic: EX:2.95e11 （ 弹性模量）,PRXY: 0

2、.3 （泊松比）OK,A Defi忖白护广詡 Modl BfP vicrMateiid Edit Favorite HelpMdterial Medels DefinedMdterial Models Adildble盘 Linear IsotropiciA Favorites 潞 Structural 虐 I linear Elastic $僮 仓 Orthotropic $ Anisotropic ia Nonlinertr 毬 Density an Tlieirndl Eypaiibion st DarrpinqEf C n - rxii 厂 f rvt-uo tropicA Linea

3、r Isotropic Properties fo*- Mater al 讯mber 1Lineal Isotropic Material Properties for Mat? mI Number 15.定义实常数以确定单元的截面积 Preprocessor Real Constants Add/Edit/Delete Add Type 1t OKtReal Constant Set No: 1 （ 第 1 号实常数）,AREA: 1e-4 （ 单元的截面积）OK6.创建节点 Preprocessor Modeling Creat Nodes In Active CS ; Nodenumbe

4、r 1 : （0,0,0 ） Apply , Node number 2 : （0.4,0,0 ） Apply , Node number 3 : （0.4,0.3,0 Apply , Node number 4 : （ 0,0.3,0 ） OKN匚ireate Nodes in Active Coordinate SystemNODE Nodt* number2X+,Z Location in active CSQ4|THXYJHYZ.THZXRotation angles （degreehCiK | Apply | fmntcl | Help7.生成单元 Preprocessor Mode

5、ling Create Elements Elem Attributes ,（接受默认值）,Auto numbered Thru nodes OK选择节点1, 2宀Apply，创建单元1.选择节点2, Applyt OK创建单元4.后显示节点号，单兀号：，创建单元2.选择节点1 , 3t Apply，创建单元3.选择节点3, 4PlotCtrls tNumberingt,将 Node Number, ELE/Attrib numbering打开。如图所示后进入 Plot，Multi-Plots ，重画图形。（ PickElements from NodesC P-31yucr. CircleL

6、oopMaxlnxutMode NuApplyRcoetCancelFick 人LI| A Pki* N U T trirg C QntTp-S1i1 /PNUIM|j Plcii Numberirtg C-oiiFroli1 KP iune厂offH LJiMt Lific numbersr ohAREA Area numbers厂onVQLU1 Volume mumbcf忡8E Node numtiefi（* geImi / Attrib numbeihngTAN Tdblr H曰m”r onMumprc corilour uMu码phlU痒N umbenng sfiawn wi thCo

7、ltrfs 8l number31/REPlOF Reptoi upon OMppty?| R plot创OK 1 血吶Cincipi |Hplp4 4a8.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 Solution Define Loads Apply StructuralDisplacement On Nodes 用鼠标选择节点 1 Apply 宀 Lab2 DOFs: UX UY , VALUE0 tApply ;用鼠标选择节点 Apply Lab2 DOFs: UY , VALUE 0 Apply ;用鼠标选择节点 4t Apply t Lab2 DO

8、Fs: UX,UY , VALUE 0 t OKApply U.HU 1 on Ncde5* EikC Unplclr厂 EelygonF Cite丄4广 loopcnun =4Hiriinvyi w1STafie -俗 List- ofItejna厂 Majsr 丄耳UA Anplw U.ROT c?NodesD| Apply Ds|pldLritii.nt! !llrROTj on Nud*、話Be 3Cin*elPiclr AllLab2 DOFs to be canstrdintedApply 裕1 Con&tfint value thencVALUE Disp ace mem val

9、ueOK | Appty Apply LI.ROT ui NodesI金1* EJLcic 厂 UnpickIS Sinyl1 厂 Box1 PoTyffn 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/moment On Nodes 宀用鼠标选择结构节点 2 Apply 宀 FX, VALUE: 20000 宀Apply t用鼠标选择结构节点 Apply FY, VALUE: 25000 OK9.分析计算ANSYS Mai n Me nu: Solution Solve Curre nt LS OKMieS L U T

10、ION OPTIONSPROBLEM DIHEMSIONALITV . 2-DDEGREES OF FREEDOM. * * ,.UX UYANAL7SIS TYPE STATIC （STEhiDV-STATE）GLOBALLY ASSEMBLED MATRIX . SYMMETRICLOAD 1STEP OPTIONSLDAO $TEP NUMBER 1TIME AT END OF THE LMD STEP. 1.0000NUMBER OF 5UBSTEPS 1STEP CHANGE &OUNDAPV CONDITIONS NOPRINT OUTPUT CONTROLS . NO PRINT

11、OUTDATABASE OUTPUT CONTROLS, * - ALL DATA WRITTENFOR THE LAST SUBSTEPA /STATUS Commrird10.结果显示 Ge neral Postproc Plot Results Deformed Shape Def+ Un deformed f OK （返回到 Plot Results） f Co ntour Plot f Nodal Solu f DOFsoluti on f Displaceme nt vector sum （ 可以看至 U位移云图 ）DISPUkCEMEin5TEP-1 SUB =1 rTME=lO

12、MK =.271E-Q3 Ge neral Postproc List Results Nodal solution DOF solution t Displaceme nt vector sum （ 弹出的文本文件显示各个节点的位移 ）/ PRNSOL CommandFilePRINT U NODAL SOLUTION PER NODE* P0ST1 NODAL DEGREE OF FREEDOM LISTING 杯脅LOAD STEP二 1 SUBSTEP二 1TIME= 1.0000 LOAD CASE= 0THE FOLLOUING DEGREE OF FREEDOM RESULTS

13、ARE IN THE GLOBAL COORDINATESYSTEMNODEUX UVUZUSUMo.qooo o.oeooQ.00G6o.eeee0 27119E-03 0 ooeo0.06G60 27119E-0330.56497-0-0.222H6E-030 00000.22952E-03斗o.oooe e.Goeo0.0600MAXIMUMABSOLUTE UALUES2 3UALUE0.27119E-03-0.22246E-03G.0OG90.27119E-O3 Ge neral Postproc List Resultst OK （弹出的文本文件显示各个节点反力 ）t Reacti

14、 on Solu t ALL itemsA List Reaction SolutionIPRRSOL List Reaction SolutionLab Item to be listedStruct force IFXFYFZAll struc fore FStruct moment MX二MYMZAll struc mome MAll itemsOK Apply |（11）退出系统ANSYS Utility Menu: File t Exit Save Everything tOK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。25000NV =uoof20000NdOOniniNODAX SOLUTIONSTEPl 3UB =1TIME=1 U3UM RSY3=0 DMX = 230E 03 3MX -.220E-03H&.Y 1 2012（AVG）230E-031 0 510E-O4.102B-03.153E02204E02255E-047E5E-04.128E-03179E-03