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1、齿轮模态分析1・改变工作名：定义文件目录2•定义单元类型(1)从主菜单MainMenu中选择：Preferences->structual->OK,再Preprocessor->ElementType->Add/Edit/Delete命令，将打开单元类型ElementType对话框SAElementTypesDefinedElementTypes:(ONEDEFINEDAdd…Iiptions・・
2、DeleteCloseHelp(2)单击Add,打开单元类型库LibraryofElementTypes对话框，在左边列表框
3、中选择实体类型Solid,在右边列表框中选择单元类型Brick8node453.定义材料属性(1)从主菜单MainMenu中选择：Preprocessor->MaterialProps->MaterialModels->Structural->Linear->Elastic->Isotropic输入2el1和0.3。(2)Preprocessor->MaterialProps->MaterialModels->Structural->Density输入7800.4、建立关键点MainMenu->Preprocessor-
4、>Modeling->create->Keypoints->InActivePlane依次输入1(21.87e-3,0,0),2(22.82e-3,l.13e・3,O),3(24.02e-3,1.47e-3,0),5(25.22e-3,2.08e-3,0),4(24.62e-3,1.73e-3,0),6(25.82e-3,2.4e-3,0),7(26.92e-3,3.23e-3,0),8(27.lle-3,0,0)./CreateKeypointsinActiveCoordinateSystem[K]CreateKey
5、pointsinActiveCoordinateSystemNPTKeypointnumber1X,Y,ZLocationinactiveCS21.87e-300OK
6、Apply
7、Cartel
8、HelpJ5、建立曲线MainMenu->Preprocessor->Modeling->Create->Lines->Splines->SplinethruKPs,依次拾取关键点2、3、4、5、6、76、镜像曲线Preprocessor->Modeling->Refiect->Lines,拾取曲线单击ok,选择X-ZplaneY
9、,单击ok7、生成圆弧MainMenu->Preprocessor->Modeling->Create->Lines->Arcs->Through3KPs,先拾取2、10、1再拾取7、11、98、牛成面MainMenu->Preprocessor->Modeling->Create->Areas->Arbitrary->ByLines,拾取前面建立的四条线9、挤出实体MainMenu->Preprocessor->Modeling->Operate->Extrude->Areas->ByXYZOffset,依次输入0,8
10、.412e-3,20e-310、一复制阵列更改坐标系Utility->Workplane->ChangeActiveCSto->Globalcylindrical❖复制MainMenu->Preprocessor->Modeling->Copy->Volumes,选取实体，点ok,输入24,360/24.更改坐标系Utility->Workplane->ChangeActiveCSto->GlobalCartesian创建实体MainMenu->Preprocessor->Modeling->Create->Volume
11、s->Cylinder->PartialCylinder,依次输入0,0,10e-3,0,26.37e-3,360,20e-3帘4LL怕E£・IYIFT耳U总12、创建键实体MainMenu->Preprocessor->Modeling->Create->Volumes->Block->ByDimensions输入-3e-3,3e-3,0,12.8e-3,0,20e-3ANJUV.2®2£J14x15s：44：：0913、进行布尔运算建立齿轮MainMenu->Preprocessor->Modeling->Opera
12、te->Booleans->Subtract->Volumes,先拾取圆环，点ok,再点击pickall14、划分网格MainMenu->Preprocessor->Meshing->MeshTool,选择SmartSize,9,设置Globalsize0.002,划分网格mesh,拾取实体即可15、定义约束更改坐标
