ANSYS入門(mén)練習(xí)教程,練習(xí)11,應(yīng)力,車床刀具

車床刀具練習(xí)11A應(yīng)力分析11A.應(yīng)力分析

車床刀具說(shuō)明下面分析求解一個(gè)3-D車床刀具模型的

應(yīng)力。用下列步驟在通用后處理器中查看結(jié)果： 1)畫(huà)位侈 2)列反力 3)畫(huà)

vonMises

應(yīng)力 4)動(dòng)態(tài)顯示vonMises應(yīng)力

施加不同的約束重新求解，與第一次的結(jié)果進(jìn)行比較。November3,200311A.應(yīng)力分析

車床刀具第一次求解的荷載和材料特性:November3,200311A.應(yīng)力分析

車床刀具第二次求解的荷載和材料特性:November3,200311A.應(yīng)力分析

車床刀具1. 按教師指定的工作目錄，用“cutter”作為作業(yè)名，進(jìn)入ANSYS。2.設(shè)置

GUI優(yōu)先級(jí)為“Structural”:MainMenu>Preferences選擇“Structural”,然后按[OK]November3,200311A.應(yīng)力分析

車床刀具3. 選擇“Nodefeaturing”，輸入“cutter.igs”IGES文件：UtilityMenu>File>Import>IGES…選擇“Nodefeaturing”,然后按[OK]選擇“cutter.igs’,然后按[OK]或用命令:Orissue:/AUX15IOPTN,IGES,NODEFEATIGESIN,cutter,igs,November3,200311A.應(yīng)力分析

車床刀具4. 按一定比例轉(zhuǎn)換模型，把厘米單位轉(zhuǎn)換為英寸:MainMenu>Preprocessor>Modeling>Operate>Scale>Volumes按[PickAll]對(duì)RX,RY,和

RZ輸入1/2.54設(shè)置IMOVE為“Moved”,然后按[OK]或用命令:/PREP7VLSCAL,ALL,,,1/2.54,1/2.54,1/2.54,,0,1UtilityMenu>Plot>Volumes或用命令:VPLOTNovember3,200311A.應(yīng)力分析

車床刀具5. 讀入文件“cutter-area.inp”，建立一個(gè)小的面，在面上施加荷載:UtilityMenu>File>ReadInputfrom…選擇“cutter-area.inp”,然后按[OK]或用命令:/INPUT,cutter-area,inpNovember3,200311A.應(yīng)力分析

車床刀具6. 確定單元類型：MainMenu>Preprocessor>ElementType>Add/Edit/Delete按[Add...]選擇“StructuralSolid”和“Tet10node92”,然后按[OK]按[Close]或用命令:ET,1,SOLID92November3,200311A.應(yīng)力分析

車床刀具7. 定義第一組材料的彈性模量為10e6(鋁):MainMenu>Preprocessor>MaterialProps>MaterialModelsStructural->Linear->Elastic->Isotropic輸入

EX=10e6(鋁的楊氏模量，以psi為單位)輸入PRXY=.32按[OK]SelectMaterial>Exit或用命令:MP,EX,1,10e6MP,PRXY,1,.32November3,200311A.應(yīng)力分析

車床刀具8. 激活智能網(wǎng)格劃分，用四面體單元?jiǎng)澐謱?shí)體：MainMenu>Preprocessor>Meshing>MeshTool激活“SmartSize”設(shè)置SmartSize為4按[Mesh]拾取[PickAll]按[Close]或用命令:SMRT,4MSHAPE,1,3DMSHKEY,0VMESH,allNovember3,200311A.應(yīng)力分析

車床刀具9. 在面上施加對(duì)稱約束，約束接觸區(qū)域：UtilityMenu>Plot>AreasMainMenu>Solution>DefineLoads>Apply>Structural>Displacement>SymmetryB.C.>OnAreas拾取面18,19,25,和26,然后按[OK]或用命令:DA,18,SYMMDA,19,SYMMDA,25,SYMMDA,26,SYMMNovember3,200311A.應(yīng)力分析

車床刀具10. 在頂端施加壓力:MainMenu>Solution>DefineLoads>Apply>Structural>Pressure>OnAreas拾取面1,然后按[OK]VALUE=10000按[OK]或用命令:SFA,1,1,PRES,10000November3,200311A.應(yīng)力分析

車床刀具11. 保存數(shù)據(jù)庫(kù)并求解:Clickthe“SAVE_DB”buttonintheToolbar(orselect:UtilityMenu>File>SaveasJobname.db)MainMenu>Solution>Solve>CurrentLS觀察“/STATUSCommand”窗口，然后關(guān)閉它按[OK]按[Close]-求解完成后關(guān)閉黃色信息窗口或用命令:SAVE/SOLUSOLVENovember3,200311A.應(yīng)力分析

車床刀具12. 觀察結(jié)果：12a.畫(huà)出位侈：MainMenu>GeneralPostproc>PlotResults>ContourPlot>NodalSolu選擇“DOFsolution”和“TranslationUSUM”,選擇“Def+undefedge”,然后按[OK]或用命令:/POST1PLNSOL,U,SUM,2,1November3,200311A.應(yīng)力分析

車床刀具

November3,200311A.應(yīng)力分析

車床刀具12b.列反力:MainMenu>GeneralPostproc>ListResults>ReactionSolu選擇“Allitems”,然后按[OK]或用命令:PRRSOLNovember3,200311A.應(yīng)力分析

車床刀具November3,200311A.應(yīng)力分析

車床刀具12c.畫(huà)vonMises

應(yīng)力:MainMenu>GeneralPostproc>PlotResults>ContourPlot>NodalSolu選擇“Stress”和“vonMisesSEQV”,然后按[OK]或用命令:PLNSOL,S,EQVNovember3,200311A.應(yīng)力分析

車床刀具12d.對(duì)模型進(jìn)行“拍照”并將其最小化：UtilityMenu>PlotCtrls>CaptureImage…在以后的比較中把窗口最小化November3,200311A.應(yīng)力分析

車床刀具12e.動(dòng)畫(huà)顯示

vonMises

應(yīng)力：UtilityMenu>PlotCtrls>Animate>DeformedResults...選擇“Stress”和“vonMisesSEQV”,然后按[OK]或用命令:PLNSOL,S,EQVANCNTR,10,0.5November3,200311A.應(yīng)力分析

車床刀具November3,200311A.應(yīng)力分析

車床刀具13. 關(guān)閉動(dòng)畫(huà)顯示，刪除面對(duì)稱約束：

按[Close]UtilityMenu>Plot>AreasMainMenu>Solution>DefineLoads>Delete>Structural>Displacement>OnAreas拾取面18,19,25,和26,然后按[OK]按[OK]或用命令:/SOLUDADELE,18,ALLDADELE,19,ALLDADELE,25,ALLDADELE,26,ALL14.對(duì)面18,19,和26施加全部自由度約束:MainMenu>Solution>DefineLoads>Apply>Structural>Displacement>OnAreas拾取面18,19,和26,然后按[OK]選擇“AllDOF”,然后按[OK]或用命令:DA,18,ALLDA,19,ALLDA,26,ALLNovember3,200311A.應(yīng)力分析

車床刀具15.改變標(biāo)題UtilityMenu>File>ChangeTitle…鍵入標(biāo)題:LatheCutter-withALLDOFconstraintonareasathole按[OK]16. 保存數(shù)據(jù)庫(kù)并求解:Pickthe“SAVE_DB”buttonintheToolbar(orselect:UtilityMenu>File>SaveasJobname.db)MainMenu>Solution>Solve>CurrentLS按[OK]按[Close]或用命令:SAVESOLVE17. 觀察結(jié)果:MainMenu>GeneralPostproc>PlotResults>ContourPlot>NodalSolu選擇“Stress”和“vonMisesSEQV”按[OK]或用命令:PLNSOL,S,EQVNovember3,200311A.應(yīng)力分析

車床刀具OpenminimizedplotfrompreviousanalysistocompareresultsNovember3,200311A.應(yīng)力分析

車床刀具18. 存儲(chǔ)并退出ANSYS:在工具條上拾取“QUIT”(或選擇:UtilityMenu>File>Exit...)選擇“SaveEverything”按[OK]或用命令:FINISH/EXIT,ALLNovember3,20032-D角型支架分析指南練習(xí)11B

應(yīng)力分析

11B.應(yīng)力分析

2-D角型支架分析指南說(shuō)明本練習(xí)逐步介紹有關(guān)ANSYS分析指南－一步一步求解的例子，它們以HTML格式顯示。這個(gè)問(wèn)題是一個(gè)用2-D平面應(yīng)力單元模擬的角型支架的靜力分析。Novemb