作业3-轴承座建模.ppt

轴承座,说明建立轴承座的1/2对称实体模型。以p-block.db文件名保存数据库文件,6F.实体建模自上而下轴承座,1.按教师指定的工作目录，用“p-block”作为作业名，进入ANSYS2.打开等轴视图方位按[ISO]或用命令/VIEW,1,1,1,13.创建轴承座的基础MainMenuPreprocessorModelingCreateVolumesBlockByDimensions输入X10,X23,Y10,Y21,Z10,Z23,然后按[OK]或用命令/PREP7BLOCK,0,3,0,1,0,3,6F.实体建模自上而下轴承座,4.将工作平面移到X2.25,Y1.25,Z.75UtilityMenuWorkPlaneOffsetWPbyIncrements设置X,Y,ZOffsets2.25,1.25,0.75设置XY,YZ,ZXAngles0,-90,0,然后按[OK]或用命令WPOFF,2.25,1.25,0.75WPROT,0,-90,0,6F.实体建模自上而下轴承座,5.创建直径为0.75英寸深度为-1.5英寸的圆柱MainMenuPreprocessorModelingCreateVolumesCylinderSolidCylinder输入Radius0.75/2输入Depth-1.5,然后按[OK]或用命令CYL4,,,0.75/2,,,,-1.56.将圆柱考贝到DZ1.5的新位置MainMenuPreprocessorModelingCopyVolumes拾取柱体体号2,按[OK]DZ1.5,按[OK]或用命令VGEN,2,2,,,,,1.5,,0,6F.实体建模自上而下轴承座,7.从轴承座基础中挖出两个圆孔MainMenuPreprocessorModelingOperateBooleansSubtractVolumes拾取轴承座基础的体体1,按[OK]拾取两个圆柱体体2和体3,然后按[OK]或用命令VSBV,1,ALL,6F.实体建模自上而下轴承座,8.在整体坐标系中改变工作平面的相对位置UtilityMenuWorkPlaneAlignWPwithGlobalCartesian或用命令WPCSYS,-1,0VPLOT9.创建套筒托架的基础MainMenuPreprocessorModelingCreateVolumesBlockBy2CornersZWPX0WPY1Width1.5Height1.75Depth0.75,then[OK]或用命令BLC4,0,1,1.5,1.75,0.7510.将工作平面移到套筒托架的正面UtilityMenuWorkPlaneOffsetWPtoKeypoints拾取正面左角顶部的关键点,按[OK]或用命令KWPAVE,16,,6F.实体建模自上而下轴承座,11.创建套筒托架的拱MainMenuPreprocessorModelingCreateVolumesCylinderPartialCylinder输入WPX0输入WPY0输入Rad-10输入Theta-10输入Rad-21.5输入Theta-290输入Depth-0.75,然后按[OK]或用命令CYL4,0,0,0,0,1.5,90,-0.75,6F.实体建模自上而下轴承座,12.通过套筒托架的孔创建圆柱MainMenuPreprocessorModelingCreateVolumesCylinderSolidCylinderWPX0WPY0Radius1Depth-0.1875,然后按[Apply]WPX0WPY0Radius0.85Depth-2,然后按[OK]或执行CYL4,0,0,1,,,,-0.1875CYL4,0,0,0.85,,,,-2,6F.实体建模自上而下轴承座,13.挖掉两个圆柱，形成轴承座和套筒的孔MainMenuPreprocessorModelingOperateBooleansSubtractVolumes拾取两个形成套筒托架拱和基础的体按[Apply]拾取轴承座柱按[Apply]拾取同样的两个基础的体按[Apply]拾取通过孔的圆柱按[OK14.合并相同的关键点MainMenuPreprocessorNumberingCtrlsMergeItems设置标号“Keypoints”,然后按[OK]或用命令NUMMRG,KP,6F.实体建模自上而下轴承座,15.创建腹板15a.在基础正面顶边的中间建立一个关键点MainMenuPreprocessorModelingCreateKeypointsKPbetweenKPs在基础上拾取两个位于正上方拐角处的关键点，按[OK]RATI0.5,然后按[OK]或用命令KBETW,7,8,0,RATI,0.5,,1stKeypoint,,6F.实体建模自上而下轴承座,1stKeypoint,2stKeypoint,15b.创建三角形面MainMenuPreprocessorModelingCreateAreasArbitraryThroughKPs在轴承座基础和套筒托架基础相交的位置，拾取第一个关键点X1.5在拱表面底部和套筒托架基础相交的位置，拾取第二个关键点X1.5拾取在14a步骤中建立的位于X1.5,Y1,Z3的第三个关键点按[Ok]或用命令A,14,15,9,1stKeypoint,3rdKeypoint,2ndKeypoint,6F.实体建模自上而下轴承座,15c.沿面的法线方向拉伸面MainMenuPreprocessorModelingOperateExtrudeAreasAlongNormal拾取在步骤14b中建立的三角形面,按[OK]输入DIST-0.15,然后按[OK]或用命令VOFFST,3,-0.15,6F.实体建模自上而下轴承座,16.组合体MainMenuPreprocessorModelingOperateBooleansGlueVolumes拾取[PickAll]或用命令VGLUE,ALL17.打开体号的显示开关，画体UtilityMenuPlotCtrlsNumbering设置Volumenumbers选项为on,按[OK]或用命令/PNUM,VOLU,1VPLOT18.保存数据库，退出ANSYSPickthe“SAVE_DB”buttonintheToolbarPickthe“QUIT”buttonintheToolbar选择“Quit-NoSave”按[OK]或用命令FINISH/EXIT,ALL,6F.实体建模自上而下轴承座,