loading结构分析实验指导书
1. 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30E6 psi，泊松比0.27。
2. 几何建模：
第一步：定义矩形
1. Main Menu> Preprocessor> Modeling> Create> Areas> Rectangle> By Dimensions
2. Enter the following: X1 = 0 ,X2 = 6,Y1 = -1,Y2 = 1 3. Apply to create the first rectangle. 4. Enter the following:
X1 = 4,X2 = 6,Y1 = -1,Y2 = -3
5. OK to create the second rectangle and close the dialog box.
第二步：更改绘图属性和重绘。
1. Utility Menu> Plot Ctrls> Numbering 2. Turn on area numbers.
3. OK to change controls, close the dialog box, and replot.
4. Toolbar: SAVE_DB.
第三步：更改工作平面为极坐标系并创建第一个圆
1. Utility Menu> WorkPlane> Display Working Plane (toggle on) 2. Utility Menu> WorkPlane> WP Settings 3. Click on Polar.
4. Click on Grid and Triad.
5. Enter 0.1 for snap increment.
6. OK to define settings and close the dialog box.
7. Main Menu> Preprocessor> Modeling> Create> Areas> Circle> Solid Circle
8. Pick center point at:WP X = 0，WP Y = 0
9. Move mouse to radius of 1 and click left button to create circle. 10.OK to close picking menu.
11.Toolbar: SAVE_DB.
第四步：移动工作平面并创建第二个圆
1. Utility Menu> WorkPlane> Offset WP to> Keypoints 2. Pick keypoint at lower left corner of rectangle. 3. Pick keypoint at lower right of rectangle. 4. OK to close picking menu.
5. Main Menu> Preprocessor> Modeling> Create> Areas> Circle> Solid Circle
6. Pick center point at:WP X = 0，WP Y = 0
7. Move mouse to radius of 1 and click left button to create circle. 8. OK to close picking menu.
9. Toolbar: SAVE_DB.
第五步：增加面
1. Main Menu> Preprocessor> Modeling> Operate> Booleans> Add> Areas 2. Pick All for all areas to be added. 3. Toolbar: SAVE_DB.