ANSYS实体建模98359.doc

具体步骤：1. 创建基座模型 ① 生成长方体Main Menu > Preprocessor > Modeling > Create > Volumes > Block > By Dimensions输入x1=0；x2=3y1=0；y2=1z1=0；z2=3② 平移并旋转工作平面Utility Menu > WorkPlane > Offset WP by IncrementsX,Y,Z Offsets 输入2.25,1.25,0.75 点击ApplyXY，YZ，ZX Angles输入0，－90，0点击OK③ 创建圆柱体Main Menu > Preprocessor > Modeling > Create > Volumes > Cylinder > Solid CylinderWP X=0，WP Y=0，Radius=0.75/2, Depth=－1.5,点击OK④ 拷贝生成另一个圆柱体Main Menu > Preprocessor > Modeling > Copy > Volume拾取圆柱体,点击Apply, DZ输入1.5然后点击OK⑤ 从长方体中减去两个圆柱体Main Menu > Preprocessor > Modeling > Operate > Booleans > Subtract > Volumes首先拾取长方体，点击Apply，然后拾取减去的两个圆柱体，点击OK。

使工作平面与总体笛卡尔坐标系一致Utility Menu > WorkPlane > Align WP with > Global Cartesian2. 创建支撑部分① 显示工作平面Utility Menu > WorkPlane > Display Working Plane② 生成长方体Main Menu > Preprocessor > Modeling > Create > Volumes > Block > By 2 corners & Z在创建实体块的参数表中输入下列数值: WP X = 0 WP Y = 1 Width = 1.5 Height = 1.75 Depth = 0.75③ 保存结果Toolbar: SAVE_DB3. 偏移工作平面到轴瓦支架的前表面① 转移工作平面到某一关键点Utility Menu > WorkPlane > Offset WP to> Keypoints + 在刚刚创建的实体块的左上角拾取关键点OK② 保存结果Toolbar: SAVE_DB 4．创建轴瓦支架的上部① 创建1/4圆柱Main Menu > Preprocessor > Modeling>Create > Volumes>Cylinder> Partial Cylinder +在创建圆柱的参数表中输入下列参数: WP X = 0 WP Y = 0 Rad-1 = 0 Theta-1 = 0 Rad-2 = 1.5 Theta-2 = 90 Depth = -0.75OK② 保存结果Toolbar: SAVE_DB 5. 在轴承孔的位置创建圆柱体为布尔操作生成轴孔做准备Main Menu > Preprocessor > Modeling>Create > Volume > Cylinder > Solid Cylinder +a. 输入下列参数: WP X = 0 WP Y = 0 Radius = 1 Depth = -0.1875b. 拾取 Applyc. 输入下列参数: WP X = 0 WP Y = 0 Radius = 0.85 Depth = -2OK6．从轴瓦支架“减”去圆柱体形成轴孔.Main Menu > Preprocessor > Modeling > Operate > Subtract > Volumes +a. 拾取构成轴瓦支架的两个体，作为布尔“减”操作的母体。

单击Applyb. 拾取大圆柱作为“减”去的对象单击Applyc. 拾取步a中的两个体，单击Applyd. 拾取小圆柱体，单击OKToolbar: SAVE_DB合并重合的关键点：Main Menu > Preprocessor > Numbering Ctrls > Merge Items 将Label 设置为 “Keypoints”, 单击 [OK]7. 创建一个关键点在底座的上部前面边缘线的中点建立一个关键点:Main Menu > Preprocessor > Modeling> Create > Keypoints > KP between KPs +拾取如下图的两个关键点,单击[OK]RATI = 0.5,单击[OK] 8. 创建一个三角面并形成三棱柱① 创建三角面a. Main Menu > Preprocessor > Modeling >Create > Areas > Arbitrary > Through KPs +b. 拾取轴承孔座与整个基座的交点c. 拾取轴承孔上下两个体的交点d. 拾取基座上上步建立的关键点，单击OK完成了三角形侧面的建模② 沿面的法向拖拉三角面形成一个三棱柱。

Main Menu > Preprocessor > Modeling>Operate > Extrude > Areas> Along Normal +a. 拾取三角面, 单击 [OK]b. 输入DIST = -0.15，厚度的方向是向轴承孔中心, 单击 [OK]③ 保存结果Toolbar: SAVE_DB9. 关闭 working plane display.Utility Menu > WorkPlane > Display Working Plane (toggle off)10．沿坐标平面镜射生成整个模型Main Menu > Preprocessor > Modeling > Reflect > Volumes +a. 拾取Allb. 拾取 “Y-Z plane，单击OKToolbar: SAVE_DB11. 粘接所有体Main Menu > Preprocessor > Modeling > Operate > Booleans > Glue > Volumes +拾取 AllToolbar: SAVE_DB。