有限元分析與應用曾攀-課程提綱

第9章受筒體的有限元建模與應力變形分析(ProjectYOZ9-1所示,習題文件名YOZX

單位:毫米E

9-1程序→ANSYSED6.1ed→Interactive→changetheworkingdirectoryintoyoursInitialjobname:ANSYS :Preferences…→selectStructuralANSYSMain:Preprocessor→ElementType→Add/Edit/Delete…→Add…→SolidQuad4node →selectSolidBrick8node45→OK→Close(theTypesANSYS :Preprocessor→MaterialProps→MaterialsModels→Elastic→Isotropic…inputEX:2.1e5,PRXY:0.3 ANSYSMain:Preprocessor→Modeling→Create→Keypoints→InActiveCS…→按次(400,100,0),(400,700,0),(480,700,0),(480,800,0),(300,800,0),(300,650,0),(300,150,0)，對稱軸上兩(0,0,0),(0,800,0)（每次輸入完畢Apply結束，0可以不輸入→Cancel(backtoCreatewindow)→-Areas-Arbitrary→ThroughKPs 的十個特征點(注意在選完第10點后結束，不要再選第1點)→OKANSYSMain:Preprocessor→Meshing→MeshTool→(SizeControls)Globl:SetSIZE(elementedgelength):50→OK(backtoMeshToolwindow)→Mesh→PickAll(in)→Close(theMeshToolANSYSMain:Preprocessor→Modeling→Operate→Extrude→ElemExtOpts→selectTYPE:SOLID45→ElementsizingoptionsforextrusionNo.Elemdivs:1→OK(backtoExtrudewindow)→Areas→AboutAxis→PickAll(inPicking)→OK→Pickthetwokeypoints(11,12)oftheSymmetricalAxis→OK→inputARC:90;NSEG:3→OKANSYSMain:Solution→DefineLoads→ApplyANSYSUtility:Select→Entities…→Nodes→ByLocation→selectXcoordinates→input0→OK(backtoDisplacementwindow)→OnNodes→PickAll(inPicking )→selectLab2:UX→OK→ANSYSUtility:Select→EverythingANSYSUtility :Select→Entities…→Nodes→ByLocation→selectZcoordinates→input0→OK(backtoDisplacementwindow)→OnNodes→PickAll(inPicking)→selectLab2:UZ→OK→ANSYSUtility:Select→EverythingANSYS :Select→Entities…→Nodes→ByLocation→selectY→input0→OK(backtoDisplacementwindow)→OnNodes→PickAll(inPicking)selectLab2:UY→OK→ANSYS :SelectANSYS :Solution→DefineLoads→Apply→Structural→Pressure→On→picktheInternalLoadSurfaceofmodel(Total6areas)→OK→inputVALUE:200→Apply(忽略警告信息)picktheExternalLoadSurfaceofmodel→OK→input →ANSYS :Solution→-Solve-CurrentLS→OK(toclosetheSolveCurrentLoadANSYSMain :GeneralPostproc→PlotResults→DeformedSh…→selectDef+Undeformed→OK(backtoPlotResultswindow)→-ContourPlot-NodalSolu…→select:Stress,VonMises,Def+Undeformed→OKANSYS :File→Exit…→Save !finishthelast !definetheelements !definematerialsparameters !definekeypointsofsectionframe !definekeypointsofrevolvingaxis !linkthekeypointstoanarea !defineelementedge !meshingthe !definethefollowingelementtype !defineelementdivisionnumberwhenextruding !extrude(sweep)theareawithmeshes !definetheloadandrunthis !selectallnodeswhosexcoordinateare !constrainthenode'sxDOF !selectallnodeswhosezcoordinateare !constrainthenode'szDOF !selectallnodeswhoseycoordinatea