ansys结构元分析结课论文

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.

第六步：创建线倒角
1. Utility Menu> PlotCtrls> Numbering
2. Turn on line numbering.
3. OK to change controls, close the dialog box, and automatically replot.
4. Utility Menu> WorkPlane> Display Working Plane (toggle off)
5. Main Menu> Preprocessor> Modeling> Create> Lines> Line Fillet
6. Pick lines 17 and 8.
7. OK to finish picking lines (in picking menu).
8. Enter 0.4 as the radius.
9. OK to create line fillet and close the dialog box.
10. Utility Menu> Plot> Lines

第七步：创建倒角面
1. Utility Menu> PlotCtrls> Pan, Zoom, Rotate
2. Click on Zoom button.
3. Move mouse to fillet region, click left button, move mouse out and click again.

4. Main Menu> Preprocessor> Modeling> Create> Areas> Arbitrary> By Lines
5. Pick lines 4, 5, and 1.
6. OK to create area and close the picking menu.
7. Click on Fit button.
8. Close the Pan, Zoom, Rotate dialog box.
9. Utility Menu> Plot> Areas

10. Toolbar: SAVE_DB.
第八步：将面添加到一起
1. Main Menu> Preprocessor> Modeling> Operate> Booleans> Add> Areas
2. Pick All for all areas to be added.
3. Toolbar: SAVE_DB.
第九步：创建第一个销孔
1. Utility Menu> WorkPlane> Display Working Plane (toggle on)
2. Main Menu> Preprocessor> Modeling> Create> Areas> Circle> Solid Circle
3. Pick center point at: WP X = 0，WP Y = 0
4. Move mouse to radius of .4 (shown in the picking menu) and click left button to create circle.
5. OK to close picking menu.

第十步：移动工作平面并创建第二个销孔
1. Utility Menu> WorkPlane> Offset WP to> Global Origin
2. Main Menu> Preprocessor> Modeling> Create> Areas> Circle> Solid Circle
3. Pick center point at: WP X = 0，WP Y = 0
4. Move mouse to radius of .4 (shown in the picking menu) and click left mouse button to create circle.
5. OK to close picking menu.
6. Utility Menu> WorkPlane> Display Working Plane (toggle off)
7. Utility Menu> Plot> Replot
8. Utility Menu> Plot> Lines

9. Toolbar: SAVE_DB.
第十一步：从支架上减掉销孔
1. Main Menu> Preprocessor> Modeling> Operate> Booleans> Subtract> Areas
2. Pick bracket as base area from which to subtract.
3. Apply (in picking menu).
4. Pick both pin holes as areas to be subtracted.
5. OK to subtract holes and close picking menu.

3. 定义材料：
第十二步：设置分析类型
1. Main Menu> Preferences
2. Turn on structural filtering.
3. OK to apply filtering and close the dialog box.
第十三步：定义材料属性
1. Main Menu> Preprocessor> Material Props> Material Models
2. Double-click on Structural, Linear, Elastic, Isotropic.
3. Enter 30e6 for EX.
4. Enter .27 for PRXY.
5. OK to define material property set and close the dialog box.
6. Material> Exit
第十四步：定义单元类型和选项
1. Main Menu> Preprocessor> Element Type> Add/Edit/Delete
2. Add an element type.
3. Structural solid family of elements.
4. Choose the 8-node quad (PLANE82).
5. OK to apply the element type and close the dialog box.
6. Options for PLANE82 are to be defined.
7. Choose plane stress with thickness option for element behavior.
8. OK to specify options and close the options dialog box.
9. Close the element type dialog box.
第十五步：定义实常数(什么是实常数？)
1. Main Menu> Preprocessor> Real Constants> Add/Edit/Delete
2. Add a real constant set.
3. OK for PLANE82.
4. Enter .5 for THK.

5. OK to define the real constant and close the dialog box.
6. Close the real constant dialog box.
4. 划分网格：
第十六步：面网格划分
1. Main Menu> Preprocessor> Meshing> Mesh Tool
2. Set Global Size control.
3. Type in 0.5.
4. OK.
5. Choose Area Meshing.
6. Click on Mesh.
7. Pick All for the area to be meshed (in picking menu). Close any warning messages that appear.
8. Close the Mesh Tool.

5. 施加载荷：
第十七步：施加位移约束
1. Main Menu> Solution> Define Loads> Apply> Structural> Displacement> On Lines
2. Pick the four lines around left-hand hole (Line numbers 10, 9, 11, 12).
3. OK (in picking menu).
4. Click on All DOF.
5. Enter 0 for zero displacement.

6. OK to apply constraints and close dialog box.
7. Utility Menu> Plot Lines

8. Toolbar: SAVE_DB.
第十八步：施加分布力
1. Main Menu> Solution> Define Loads> Apply> Structural> Pressure> On Lines
2. Pick line defining bottom left part of the circle (line 6).
3. Apply.
4. Enter 50 for VALUE.
5. Enter 500 for optional value.

6. Apply.
7. Pick line defining bottom right part of circle (line 7).
8. Apply.
9. Enter 500 for VALUE.
10. Enter 50 for optional value.
11. OK.
12. Toolbar: SAVE_DB.
6. 求解：
第十九步：求解
1. Main Menu> Solution> Solve> Current LS
2. Review the information in the status window, then choose File> Close
3. OK to begin the solution. Choose Yes to any Verify messages that appear.
4. Close the information window when solution is done.
7. 查看结果：
第二十步：读入数据结果
1. Main Menu> General Postproc> Read Results> First Set
第二十一步：绘制变形图
1. Main Menu> General Postproc> Plot Results> Deformed Shape
2. Choose Def + undeformed.
3. OK.

4. Utility Menu> Plot Ctrls> Animate> Deformed Shape
5. Choose Def + undeformed.
6. OK.
第二十二步：绘制应力图
1. Main Menu> General Postproc> Plot Results> Contour Plot> Nodal Solu
2. Choose Stress item to be contoured.
3. Scroll down and choose von Mises (SEQV).
4. OK.

5. Utility Menu> Plot Ctrls> Animate> Deformed Results
6. Choose Stress item to be contoured.
7. Scroll down and choose von Mises (SEQV).
8. OK.
9. Make choices in the Animation Controller (not shown), if necessary, then choose Close.
第二十三步：列出约束反力
1. Main Menu> General Postproc> List Results> Reaction Solu
2. OK to list all items and close the dialog box.
3. Scroll down and find the total vertical force, FY.
4. File> Close (Windows).

第二十四步：退出ANSYS软件
1. Toolbar: Quit.
2. Choose Quit - No Save!
3. OK.

ANSYS结构分析单元与应用的目录

第1章结构分析单元1.1 单元的一般特性1.2 单元分类第2章杆单元2.1 LINK1单元2.2 LINK8单元2.3 LINK10单元2.4 LINK11单元2.5 LINK180单元第3章梁单元3.1 BEAM3单元3.2 BEAM4单元3.3 BEAM23单元3.4 BEAM24单元3.5 BEAM44单元3.6 BEAM54单元3.7 BEAM188单元3.8 BEAM189单元第4章管单元4.1 PIPE16单元4.2 PIPE17单元4.3 PIPE18单元4.4 PIPE20单元4.5 PIPE59单元4.6 PIPE60单元第5章 2D实体单元5.1 PLANE42单元5.2 PLANE82单元5.3 PLANE2单元5.4 PLANE25单元5.5 PLANE83单元5.6 PLANE145单元5.7 PLANE146单元5.8 PLANE182单元5.9 PLANE183单元第6章 3D实体单元6.1 SOLID45单元6.2 SOLID95单元6.3 SOLID92单元6.4 SOLID46单元6.5 SOLID191单元6.6 SOLID64单元6.7 SOLID65单元6.8 SOLID147单元6.9 SOLID148单元6.10 SOLID185单元6.11 SOLID186结构实体单元6.12 SOLID186分层实体单元6.13 SOLID187单元6.14 SOLSH190单元第7章壳单元7.1 SHELL63单元7.2 SHELL93单元7.3 SHELL43单元7.4 SHELL181单元7.5 SHELL281单元7.6 SHELL91单元7.7 SHELL99单元7.8 SHELL28单元7.9 SHELL41单元7.10 SHELL150单元7.11 SHELL61单元7.12 SHELL209单元7.13 SHELL208单元第8章弹簧单元8.1 COMBIN14单元8.2 COMBIN40单元8.3 COMBIN37单元8.4 COMBIN39单元8.5 COMBIN7单元第9章质量单元9.1 MASS21单元第10章接触单元10.1接触概述10.2 CONTA174单元10.3 CONTA173单元10.4 CONTA172单元10.5 CONTA171单元10.6 CONTA175单元10.7 CONTA176单元10.8 TARGE169单元10.9 TARGE170单元10.10 CONTA178单元10.11 CONTAC52和CONTAC12单元10.12 CONTA177单元10.13 多点约束(MPC)与装配10.14 点焊第11章矩阵单元11.1 MATRIX27单元11.2 MATRIX50单元第12章表面效应单元12.1 SURF153单元12.2 SURF154单元12.3 SURF156单元第13章特殊单元13.1 PRETS179单元13.2 MESH200单元13.3 FOLLW201单元13.4 COMB1214单元13.5 REINF265单元第14章 MPC184单元14.1 概述14.2 MPC184-刚性杆和刚性梁单元14.3 MPC184-滑块单元14.4 MPC184-销轴连接单元14.5 MPC184-万向节连接单元14.6 MPC184-滑槽连接单元14.7 MPC184-点面连接单元14.8 MPC184-平移连接单元14.9 MPC184-圆柱连接单元14.10 MPC184-面连接单元14.11 MPC184-焊接连接单元14.12 MPC184-定向连接单元14.13 MPC184-球铰连接单元14.14 MPC184-广义连接单元参考文献

ansys的结构分析类型有哪些

本文按单元的特点将结构分析单元分为：线单元、管单元、实体单元、壳单元、接触单元、特殊单元六大类，分类进行介绍。 2．1线单元线单元主要有：杆单元、梁单元。 2．1．1杆单元杆单元主要用于桁架和网格计算。属于只受拉、压力的线单元pJ。主要用米模拟弹簧，螺杆，预应力螺杆利薄膜桁架等模型。其主要的类型有： (1)LINK1是个二维杆单元，可刚作桁架、连杆或弹簧。 (2)LINK8是个三维杆单元，可用作桁架、缆索、连杆、弹簧等模型。 (3)LINK10是个三维仅受拉伸或压缩杆单元，可用于将整个钢缆刚一个单元来模拟的钢缆静力。 2．1．2梁单元梁单元主要用于框架结构计算。属于既受拉、压力，又有弯曲应力的线单元【3】。主要用米模拟螺栓，薄壁管件，C型截面构件，角钢或细长薄膜构件。其主要的类型有： (1)BEAM3是个二维弹性粱单元，可用于轴向拉伸、压缩和弯曲单元。 (2)BEAM4是个三维弹性梁单元，可用于轴向拉伸、压缩、扭转和弯曲单元。 (3)BEAM54是个二维弹性渐变不对称梁单元，可用于分析拉伸、压缩和弯曲功能的单轴向单元。 (4)BEAM44是个三维渐变不对称梁单元，可用_丁分析拉伸、压缩、扭转利弯曲功能的单轴单元。 (5)BEAMl88是个三维线性有限应变梁单元，可用于分析从细长到中等粗短的梁结构。 (6)BEAMl89是个三维二次有限应变梁单元，可刚于分析从细长到中等粗短的梁结构。 2．2管单元 (1)PIPE16是三维弹性直管单元，可用于分析拉压、扭转和弯曲的单轴向单元。 (2)PIPE17是三维弹性T形管单元，可用于分析拉压、扭转和弯曲T形管单轴单元。 (3)PIPEl8是弹性弯管单元(肘管)，可用丁分析拉伸、压缩、扭转和弯曲性能的环形单轴单元。 (4)PIPE20是个塑性直管单元，可用于分析拉压、弯曲利扭转的单轴单元。 (5)PIPE60是个塑性弯管(弯管头)单元，可用于分析拉压，弯曲和扭转的单轴单元。 (6)PIPE59是个沉管或缆单元，可用于分析拉压、扭转和弯曲，并有薄膜力以模拟海洋波浪和电流作用的单轴单元。 2．3实体单元 2．3．1 2__D实体二维实体单元主要用于描述薄平板结构(平面应力)、等截面的“无限长”结构(平面应变)和轴对称实体结构，即：用于模拟实体的截面，所有的荷载均作用