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1、实用文案面与面接触实例:插销拨拉问题分析定义单元类型Element/add/edit/delete定义材料属性MaterialProps/MaterialModelsStructural/Linear/Elastic/Isotropic定义材料的摩擦系数建立几何模型Modeling/Create/Volumes/Block/ByDimensionsX1=Y1=0,X2=Y2=2,Z1=2.5,Z2=3.5标准文档实用文案Modeling/Create/Volumes/Cylinder/ByDimensionsMode
2、ling/Operate/Booleans/Subtract/Volumes先拾取长方体,再拾取圆柱体。Modeling/Create/Volumes/Cylinder/ByDimensions划分掠扫网格Meshing/SizeCntrls/ManualSize/Lines/PickedLines拾取插销前端的水平和垂直直线,输入NDIV=3再拾取插座前端的曲线,输入NDIV=4标准文档实用文案PlotCtrls/Style/SizeandShape,在Facets/elementedge列表中选择2facets/
3、edge建立接触单元Modeling/Create/Contactpair,弹出ContactManager对话框,如图所示。单击最左边的按钮,启动ContactWizard(接触向导),如图所示。标准文档实用文案单击PickTarget,选择目标面。选择接触面定义位移约束施加对称约束,DefineLoads/Apply/Structural/Displacement/SymmetricB.C/OnAreas,选择对称面。再固定插座的左侧面。设置求解选项AnalysisType/Sol’sControl标准文档实用文
4、案求解:Solve/CurrentLS绘制装配应力图GeneralPostproc/PlotResults/ContourPlot/NodalSolution,选择Stress/vonMisesstress求解拨拉过程选择Z=4.5处的所有节点。DefineLoads/Apply/Structural/Displacement/OnNodes,弹出ApplyU,ROTonNodes拾取框,单击PickAll按钮,选择UZ,在Displacementvalue输入1.7Select/EverythingAnalysis
5、Type/Sol’sControl标准文档实用文案Solve/CurrentLS结果后处理扩展模型:Style/SymmetryExpansion/Priodic/CyclicSmmetry,在弹出的对话框中选择1/4DihedralSym选择GeneralPostproc/ReadResults/Bytime/frequency,在TIME域输入120。标准文档实用文案选择插销中与插座接触的单元,在SelectEntities中选择Element,在列表中选择ByElementname,再ElementName域输
6、入174Plot/ElementsGeneralPostproc/PlotResults/ContourPlot/NodalSolution,在对话框中选择Contact/ContactPressure读入载荷步2结果。ReadResults/ByLoadStep标准文档实用文案绘制拨拉过程的应变变化动画PlotCtrls/Animate/OverResults,弹出如图所示的对话框。命令流操作:(1)建立几何模型/filename,bolt/title,bolt_pullinganalysis标准文档实用文案/PR
7、EP7Block,-2,2,-2,2,2.5,3.5/view,1,1,1,1/ang,1/rep,fastCylind,0.49,,2.5,3.5,0,360Vsbv,1,2Cylind,0.5,,2,4.5,0,360/pnum,volu,1Wpstyle,0.05,0.1,-1,1,0.003,0,0,,5Wpstyle,,,,,,,,1Wpro,,,90Wsbw,allVdele,4,,,1Vdele,6,,,1Wpcsys,-1,0Wpro,,90Vsbw,allVdele,p51x,,,1Wpcsys,-
8、1,0Wpstyle,,,,,,,,0(2)定义单元类型、材料模型和网格划分Et,1,solid185Mptemp,,,,,,,,Mptemp,1,0Mpdata,ex,1,,36e6Mpdata,prxy,1,,0.3Lesize,4,,,3,,,,,0Lesize,10,,,3,,,,,0Lesize,18,,,4,,,,,0Vsweep,