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结构分析实验指导书问题描述：这是一个关于角支架的单载荷步的结构静力分析。如图所示，左上角的销孔由于焊接而被固定死。右下角的销孔上作用一分布力。本问题的目标是熟悉ANSYS分析的基本过程。使用的是美国的单位体系。材料的杨氏模量为30E6psi，泊松比0.27。几何建模：第一步：定义矩形MainMenu>Preprocessor>Modeling>Create>Areas>Rectangle>ByDimensionsEnterthefollowing:X1=0,X2=6,Y1=-1,Y2=1Applytocreatethefirstrectangle.Enterthefollowing:X1=4,X2=6,Y1=-1,Y2=-3OKtocreatethesecondrectangleandclosethedialogbox.第二步：更改绘图属性和重绘。UtilityMenu>PlotCtrls>NumberingTurnonareanumbers.OKtochangecontrols,closethedialogbox,andreplot.Toolbar:SAVE_DB.第三步：更改工作平面为极坐标系并创建第一个圆UtilityMenu>WorkPlane>DisplayWorkingPlane(toggleon)UtilityMenu>WorkPlane>WPSettingsClickonPolar.ClickonGridandTriad.Enter0.1forsnapincrement.OKtodefinesettingsandclosethedialogbox.MainMenu>Preprocessor>Modeling>Create>Areas>Circle>SolidCirclePickcenterpointat:WPX=0，WPY=0Movemousetoradiusof1andclickleftbuttontocreatecircle.OKtoclosepickingmenu.Toolbar:SAVE_DB.第四步：移动工作平面并创建第二个圆UtilityMenu>WorkPlane>OffsetWPto>KeypointsPickkeypointatlowerleftcornerofrectangle.Pickkeypointatlowerrightofrectangle.OKtoclosepickingmenu.MainMenu>Preprocessor>Modeling>Create>Areas>Circle>SolidCirclePickcenterpointat:WPX=0，WPY=0Movemousetoradiusof1andclickleftbuttontocreatecircle.OKtoclosepickingmenu.Toolbar:SAVE_DB.第五步：增加面MainMenu>Preprocessor>Modeling>Operate>Booleans>Add>AreasPickAllforallareastobeadded.Toolbar:SAVE_DB.第六步：创建线倒角UtilityMenu>PlotCtrls>NumberingTurnonlinenumbering.OKtochangecontrols,closethedialogbox,andautomaticallyreplot.UtilityMenu>WorkPlane>DisplayWorkingPlane(toggleoff)MainMenu>Preprocessor>Modeling>Create>Lines>LineFilletPicklines17and8.OKtofinishpickinglines(inpickingmenu).Enter0.4astheradius.OKtocreatelinefilletandclosethedialogbox.UtilityMenu>Plot>Lines第七步：创建倒角面UtilityMenu>PlotCtrls>Pan,Zoom,RotateClickonZoombutton.Movemousetofilletregion,clickleftbutton,movemouseoutandclickagain.MainMenu>Preprocessor>Modeling>Create>Areas>Arbitrary>ByLinesPicklines4,5,and1.OKtocreateareaandclosethepickingmenu.
