华科有限元上机答案

1、有限元分析软件ANSYS上机习题姓名 郭静班级船海1203班 学号U9Projectl简 支 梁 的 变 形 分析 .1Project2坝体的有限元建模与受力分析.3Projects 受内压作用的球体的应力与变形分析.5Project4受热载荷作用的厚壁圆筒的有限元建模与温度场求解.7Project5超 静 定 桁 架 的 有 限 元 求解.9Project6超 静 定 梁 的 有 限元求解 .11Project7平板的有限元建模与变形分析13Projectl梁的有限元建模与变形分析计算分析模型如图1-1所示，习题文件名：beami NOTE要求选择不同形状的截面分别进行计算。图1-1梁的计算

2、分析模型梁截面分别采用以下三种截面（单位：m）:K-B-HWl-*!矩形截面：B=, H= R=圆截面:w1 =工字形截面:,w2= w3=,t1= , t2= , t3=进入ANSYS程序 ANSYSED fInteractive fchange the working directory into yours input Initial jobname: beam fRun设置计算类型ANSYS Main Menu: Preferencesselect Structural 一 OK选择单元类型ANSYS Main Menu: Preprocessor fElement Type Add/

3、Edit/Delete 一Add一 select Beam 2 node 188 fOK (back to Element Types window) 一Close (the Element Type window)定义材料参数Models StructuralANSYSMain Menu Preprocessor Material Props Material f Linear fElastic fIsotropic finput EX:, PRXYOk定义截面ANSYS Main Menu: Preprocessor Sections - Beam f Common Sectns 一分别定

4、义矩 形截面、圆截面和工字形截面： 矩形截面:ID=1,B= , H=一Apply 一圆截面：ID=2,R= 一Apply 一工字形截面：ID=3,w1= , w2= w3=, t1= , t2= , t3= 一OK生成几何模型生成特征点ANSYS Main Menu: Preprocessor fModeling fCreate fKeypoints fIn Active CS - 依次输入三个点的坐标：input:1(0,0),2(10,0),3(5,1)-OK生成梁ANSYS Main Menu: Preprocessor fModeling fCreate fLines flines

5、fStraight lines -连接两个特征点，1(0,0),2(10,0)-OK网格划分ANSYS Main Menu: Preprocessor fMeshing fMesh Attributes fPicked lines - OKf选择：SECT:1 (根据所计算的梁的截面选择编号)；Pick Orientation Keypoint(s):YES拾取：3#特征点(5,1) fOQMesh Tool fSize Controls) lines:Set -Pick All (inPicking Menu) - input NDIV:5 fOK (back to Mesh Tool wi

6、ndow) - Mesh fPick All (in Picking Menu) - Close (the Mesh Tool window)模型施加约束最左端节点加约束ANSYS Main Menu: Solution fDefine Loads fApply fStructural fDisplacement fOn Nodes fpick the node at (0,0) f OK f select UX, UY,UZ,ROTX f OK最右端节点加约束ANSYS Main Menu: Solution fDefine Loads fApply fStructural fDisplac

7、ement fOn Nodes fpick the node at (10,0) f OK f select UY,UZ,ROTX f OK施加y方向的载荷ANSYS Main Menu: SolutionfDefine Loads fApply fStructuralfPressure -On Beams fPick All f VALI:100000 f OK分析计算ANSYS Main Menu: Solution Solve fCurrent LS f OKto close the solve Current Load Step window) fOK结果显不'ANSYSMai

8、n Menu: General Postproc fPlot Results fDeformed Shape - f select Def + Undeformed fOK (back to Plot Results window) -Contour Plot fNodal Solu fselect:DOF solution, UY, Def + Undeformed , Rotation, ROTZ ,Def + UndeformedfOK退出系统Project2坝体的有限元建模与应力应变分析计算分析模型如图2-1所示,习题文件名：darn1m0.55m坝体的计算分析模型进入ANSYS程序

9、ANSYSED fInteractive fchange the working directory into yours input Initial jobname: dam fRun设置计算类型ANSYS Main Menu Preferences fselect Structural 一 OK选择单元类型ANSYS Main Menu Preprocessor fElement TypeAdd/Edit/Delete Add fselect Solid Quad 4node 42 OK(back to Element Types window) 一 Options 一 select K3

10、: Plane Strain OQ Close (the Element Type window)定义材料参数Models StructuralANSYSMain Menu Preprocessor Material Props Material 一Linear Elastic Isotropic input EX:, PRXY: 一 OK生成几何模型生成特征点ANSYS Main Menu: Preprocessor fModeling fCreate fKeypoints fIn Active CS f 依次输入四个点的坐标：input:1(0,0),2(1,0),3(1,5),4,5)-

11、OK生成坝体截面ANSYSMain Menu: Preprocessor fModeling fCreate fAreas fArbitraryfThroughKPS -依次连接四个特征点，1(0,0),2(1,0),3(1,5),4,5)- OK网格划分ANSYSMain Menu Preprocessor fMeshing Mesh Toolf(Size Controls) lines: Set 依次拾取两条横边：OKf input NDIV: 15 - Apply -依次拾取两条纵边：OK f input NDIV: 20 -OK f (back to the mesh tool win

12、dow)Mesh: Areas, Shape: Quad, Mapped fMesh - Pick All (in Picking Menu) - Close ( the Mesh Tool window)模型施加约束分别给下底边和竖直的纵边施加x和y方向的约束ANSYS Main Menu: Solution fDefine Loads fApply fStructural fDisplacement fOn lines fpick the linesfOK-selectLab2:UX, UY f OK给斜边施加x方向的分布载荷ANSYS命令菜单栏：Parameters fFunctions

13、 f Define/Edit -1)在下方的下拉列 表框内选择 x，作为设置的变量；2)在Result窗口中出现X,写入所施加的载荷函数： 1000*X ; 3) File>Save(文件扩展名：func)返回：Parameters fFunctions fReadfrom file :将需要的.func文件打开，任给一个参数名，它表示随之将施加的载荷-OK -ANSYSMain Menu: Solution fDefine Loads fApply fStructural fPressure fOn Lines - 拾取斜边；OK f在下拉列表框中，选择：Existing table-

14、OK f选择需要的载荷参数名fOK分析计算ANSYS Main Menu: Solution Solve fCurrent LS f OKto close the solve Current Load Step window) fOK结果显不'ANSYSMain Menu: General Postproc fPlot Results fDeformed Shape - f select Def + Undeformed fOK (back to Plot Results window) -Contour Plot fNodal Solu fselect:DOFsolution, UX

15、,UY, Def + Undeformed , Stress ,SX,SY,SZ, Def + UndeformedfOK退出系统ANSYS Utility Menu:File f Exit > Save Everything fOKProject3受内压作用的球体的有限元建模与分析计算分析模型如图3-1所示,习题文件名：sphere 。承受内压:1.0e8 Pa图3-1受均匀内压的球体计算分析模型(截面图)进入ANSYS程序 ANSYSED fInteractive fchange the working directory into yours input Initial jobna

16、me: sphere fRun设置计算类型ANSYS Main Menu: Preferences 一 select Structural 一 OK选择单元类型ANSYS Main Menu Preprocessor fElement Type f Add/Edit/DeletefAdd -selectSolid Quad 4node 42 OK(back to Element Types window) 一 Options 一 select K3: Axisymmetric 一 OQ Close (the Element Type window)定义材料参数Models Structural

17、ANSYSMain Menu Preprocessor Material Props Material 一Linear Elastic Isotropic input EX:, PRXY: 一 OK生成几何模型生成特征点ANSYS Main Menu: Preprocessor Modeling Create Keypoints In Active CS一依次输入四个点的坐标：input:1,0)20),3(0,4(0,一 OK生成球体截面ANSYST令菜单栏：Work Plane>Change Active CS to>Global Spherical fANSYSMainMen

18、u: Preprocessor fModeling Create Lines In Active Coord 一依次连接 1,2,3,4 点OK fPreprocessor fModeling fCreate fAreas fArbitrary fBy Lines 依次 拾取四条边一 OKfANSY瑜令菜单栏：Work Plane>Change Active CS to>Global Cartesian网格划分ANSYSMain Menu: Preprocessor fMeshing fMesh Toolf(Size Controls) lines: Set 拾取两条直边：OKfi

19、nput NDIV: 10 - Apply f拾取两条曲边：OK f input NDIV: 20 fOK (back to the mesh tool window)Mesh: Areas, Shape: Quad, Mapped f Mesh fPick All (in Picking Menu) - Close ( the Mesh Tool window)模型施加约束给水平直边施加约束ANSYS Main Menu: Solution fDefine Loads fApply fStructuralfDisplacementfOn Lines f拾取水平边：Lab2: UY f OK,

20、给竖直边施加约束ANSYS Main Menu: Solution fDefine Loads fApply fStructuralfDisplacementSymmetry . fOn Lines f拾取竖直边 fOK给内弧施加径向的分布载荷ANSYS Main Menu SolutionfDefine Loads fApply fStructuralfPressure -On Lines f拾取小圆弧；OK finput VALUE:100e6 -OK分析计算ANSYS Main Menu: Solution Solve fCurrent LS f OKto close the solve

21、 Current Load Step window) fOK结果显不'ANSYSMain Menu: General Postproc fPlot Results fDeformed Shape - f select Def + Undeformed fOK (back to Plot Results window) -Contour Plot fNodal Solu fselect: DOFsolution, UX,UY, Def + Undeformed , Stress ,SX,SY,SZ,Def + Undeformed fOK退出系统ANSYS Utility Menu:Fi

22、le f Exit > Save Everything fOK说明：1、在结果坐标系(rsys )中用柱坐标或者球坐标，看x方向的结果就是径向的。2 、由于选择的是轴对称单元，几何模型、结果均可以扩展成整个厚壁球。Project4受热载荷作用的厚壁圆筒的有限元建模与温度场求解计算分析模型如图4-1所示，习题文件名：cylinderR1=0.3R2=0.5圆筒内壁温度：500C,外壁温度:100C。两端自由且绝热图4-1受热载荷作用的厚壁圆筒的计算分析模型(截面图)进入ANSYS程序 ANSYSED fInteractive fchange the working directory in

23、to yours -input Initial jobname: cylinder fRun设置计算类型ANSYS Main Menu: Preferences 一 select Thermal 一 OK选择单元类型ANSYS Main Menu Preprocessor fElement Type f Add/Edit/Delete fAdd -select Thermal Solid Quad 4node 55OK (back to Element Types window) Options select K3: Axisymmetric 一 OQ Close (the Element T

24、ype window)f Material Models Thermal -定义材料参数ANSYS Main Menu Preprocessor f Material PropsConductivity Isotropic input KXX: 一 OK生成几何模型生成特征点ANSYS Main Menu: Preprocessor Modeling Create Keypoints In Active CS一依次输入四个点的坐标：input:1,0),2,0),3,1),4,1)一 OK生成圆柱体截面ANSYSMain Menu: Preprocessor Modeling Create A

25、reas ArbitraryThroughKPS 一依次连接四个特征点，1,0),2,0),3,1),4,1) 一 OK网格划分fMesh f PickANSYSMain Menu Preprocessor Meshing Mesh Toolf(Size Controls) lines: Set 一拾取两条水平边：OQ input NDIV: 5 一 Apply 一拾取两条竖直边：OK 一 input NDIV:15 一OK f (back to the mesh tool window)Mesh: Areas, Shape: Quad, MappedAll (in Picking Menu)

26、 一 Close ( the Mesh Tool window)模型施加约束分别给两条直边施加约束ANSYS Main Menu: Solution Define Loads Apply Thermal Temperature 一 On Lines 拾取左边,Value: 500 Apply (back to the window of apply temp on lines) 一拾取右边，Value : 100 一 OK分析计算ANSYS Main Menu: SolutionSoke 一 Current LS OKto close the solve CurrentLoad Step wi

27、ndow) 一 OK结果显不'ANSYSMain Menu: General Postproc Plot Results Deformed Shape - - select Def + Undeformed 一OK (back to Plot Results window) -Contour Plot Nodal Solu 一 select: DOF solution, Temperature TEMP 一 OK退出系统ANSYS Utility Menu:File - Exit > Save Everything 一 OKProject5超静定桁架的有限元建模与分析计算分析模型

28、如图5-1所示，习题文件名：truss 。1m1m1m载荷：1.0e8 N图5-1超静定桁架的计算分析模型进入ANSYS程序 ANSYSED fInteractive fchange the working directory into yours 一input Initial jobname: truss fRun设置计算类型ANSYS Main Menu Preferences fselect Structural 一 OK选择单元类型ANSYS Main Menu Preprocessor fElement TypeAdd/Edit/Delete 一Add 一select Link 2D

29、 spar 1 - OK(back to Element Types window) Close (the Element Type window)定义材料参数ANSYSMain Menu Preprocessor Material Props Material Models Structural 一Linear Elastic Isotropic input EX:, PRXY: 一 OK定义实常数ANSYS Main Menu: Preprocessor Real Constant s一Addfselect Type 1 一 OK 一 input AREA: 一 OK 一Close (th

30、e Real Constants Window)生成几何模型生成特征点ANSYS Main Menu: Preprocessor Modeling Create Keypoints In Active CS 一依次输入四个点的坐标：input:1(1,1),2(2,1),3(3,1),4(2,0)一 OK生成桁架ANSYS Main Menu: Preprocessor Modeling Create Lines Lines StraightLine 一依次连接四个特征点，1(1,1),2(2,1),3(3,1),4(2,0)一 OK网格划分ANSYSMain Menu: Preprocess

31、or fMeshing fMesh Toolf(Size Controls) lines: Set f 依次拾取三根杆：OQinput NDIV: 1 -OKf(back to the mesh tool window)Mesh: lines f Mesh Pick All(in Picking Menu)- Close ( the Mesh Tool window)模型施加约束分别给1,2,3三个特征点施加x和y方向的约束ANSYS Main Menu: Solution fDefine Loads fApply fStructural fDisplacement fOn Keypoints

32、 -拾取 1(1,1),2(2,1),3(3,1) 三个特征点 fOK -select Lab2:UX, UY fOK给4料寺征点施加y方向载荷ANSYS Main Menu Solution fDefine Loads fApply fStructural f Force/MomentfOn Keypointsf拾取特征点4(2,0) fOK - Lab: FY, Value: -100e6f OK分析计算Solve fCurrent LS f OKto close the solve CurrentANSYS Main Menu: Solution Load Step window) fO

33、K结果显不'ANSYSMain Menu: General Postproc fPlot Results fDeformed Shape - f select Def + Undeformed fOK (back to Plot Results window) -Contour Plot fNodal Solu fselect: DOF solution, UY, Def + Undeformed fOK退出系统ANSYS Utility Menu:File f ExitSave Everything fOKProject6超静定梁的有限元建模计算计算分析模型如图6-1所示，习题文件名

34、：statically indeterminate beam梁承受均布载荷：1.0e5 Pa图6-1超静定梁的计算分析模型进入ANSYS程序 ANSYSED fInteractive fchange the working directory into yoursinput Initial jobname:statically indeterminate beam fRun设置计算类型ANSYS Main Menu Preferences fselect Structural 一 OK选择单元类型ANSYS Main Menu Preprocessor fElement TypeAdd/Edi

35、t/DeleteAdd fselectBeamtapered 44 - OKback to Element Types window) Close (the Element Type window)定义材料参数ANSYSMain Menu Preprocessor Material Props Material Models Structural一Linear Elastic Isotropic input EX:, PRXY: 一 OK定义截面ANSYS Main Menu: Preprocessor Sections -Beam f Common Sectns 一定义矩形截 面:ID=1,

36、B=,H= 一 OK生成几何模型生成特征点CS 一ANSYS Main Menu: Preprocessor fModeling Create Keypoints In Active 依次输入三个点的坐标：input:1(0,0),2(1,0),3(2,0), 4(0,0,1) 一OK生成梁ANSYS Main Menu: Preprocessor fModeling Create Lines lines Straightlines一依次连接三个特征点，1(0,0), 2(1,0),3(2,0) 一 OK显示梁体f/ESHAPE f On -OKANSY阶令菜单栏：PlotCtrls >

37、Style >Size and Style网格划分ANSYS Main Menu: Preprocessor Meshing Mesh Attributes fPicked lines - OK 一拾取：SECT:1 ; Pick Orientation Keypoint(s):YES 一拾取：4#特征点(0,0,1) 一 OK 一 Mesh Tool 一( Size Controls) lines:Set 一 Pick All (in Picking Menu) 一 inputNDIV:8 一 OK(back to Mesh Tool window) 一 Mesh 一 Pick All

38、 (in Picking Menu) 一 Close (the Mesh Tool window)模型施加约束分别给1,2,3三个特征点加约束ANSYS Main Menu: Solution Define Loads Apply Structural fDisplacement一 On Keypoints 一拾取 1,2,3 keypoints fOK-select All DOF 一 OK施加y方向的载荷ANSYSMain Menu: Solution Define Loads Apply StructuralPressure 一 OnBeams Pick All 一 LKEY:2, VA

39、LI:100000 一OK说明：LKEY:2,表示是沿着y方向施加的分布力LKEY:1,表示是沿着z方向施加的分布力同学们可以把查看施加后的压力开关打开，从而根据实际情况选择加载的方向。分析计算表示施加压力的方 向ANSYS Main Menu: Solution Soke 一 Current LS OKto clo Load Step window) 一 OKthe solve Current可缺省，缺省表示与 I节点的压力为0结果显不'ANSYSMain Menu: General Postproc 一 Plot Def + Undeformed 一 OK (back to Plo

40、t Results 一 select: DOF solution, UY, Def + UndeformedResults Deformed Shape - 一 $elect省，缺省表示window) 一 Contour Plot 一 NodaSoluI节点的压力相,Rotation, ROTZ ,Def + Undeformed 同，即为均布力一 OK退出系统ANSYS Utility Menu:File f Exit fSave Everything fOKProject7平板的有限元建模与变形分析计算分析模型如图7-1所示,习题文件名：plane板承受均布载荷：1.0e5 Pa图7 -

41、1受均布载荷作用的平板计算分析模型进入ANSYS程序 -ANSYSED Interactiv令change the working directory into yours input Initial jobname:plane fRun设置计算类型ANSYS Main Menu Preferences fselect Structural 一 OK选择单元类型ANSYS Main Menu Preprocessor fElement Type f Add/Edit/DeletefAdd -selectSolid Quad 4node 42 OK(back to Element Types w

42、indow) 一 Options 一 select K3: Plane stress w/thkfOQ Close (the Element Type window)定义材料参数ANSYSMain Menu Preprocessor Material Props Material Models Structural一Linear Elastic Isotropic input EX:, PRXY: 一 OK定义实常数ANSYS Main Menu: Preprocessor Real Constant s一Addfselect Type 1 一 OK 一input THK:1 一 OK 一Cl

43、ose (the Real Constants Window)生成几何模型生成特征点ANSYS Main Menu: Preprocessor fModeling fCreate fKeypoints fIn Active CS -,4(0,1),5,-OK依次输入五个点的坐标：input:1(0,0),2(1,0), 3(1,1)生成平板ANSYSMain Menu: Preprocessor fModeling fCreate fAreas fArbitrary fThrough KPS-连接特征点1,2,5 -Apply -连接特征点2,3,5 -Apply -连接特征点3,4,5 -Apply -连接特征点4,1,5 -OK网格划分ANSYS Main Menu: Preprocessor fMeshing fMesh Tool f ( Size Controls) lines: Set Pick All (in Picking Menu) -input NDIV:1 f O2 (back to the mesh tool window)Mesh: Areas, Shape: Tri, Free Mesh f Pick All (in Picking Menu)- Close