有限元分析大作业姓 名学 号任课教师2018年11月28日目录1.问题22.建模23.求解244.后处理275.结论291. 问题对一个位移控制加载的轴对称咬接装配问题进行分析。设偏移量为0.4dm，即4cm。绿色部分选择材料为ABS，弹性模量为0.2GPa，泊松比为0.394；红色部分材料为尼龙，弹性模量为8.3GPa，泊松比为0.28。2. 建模1. 启动ANSYS软件，工作路径为缺省，工作文件名为“Homework”。2. 在XOY平面第一象限内生成最下方图形1，其坐标点为：2.1. 创建关键点，将所有的点建立出来。Main Menu Preprocessor Modeling Create Keypoints In Active CS 按照上图的坐标点数值，输入到ANSYS中，然后点保存。或用命令：/PREP7K, ,0.163,0, K, ,0.163,0.032, K, ,0.15,0.045, K, ,0.15,0.086, K, ,0.16,0.086, K, ,0.16,0.084, K, ,0.163,0.077, K, ,0.163,0.0715, K, ,0.16,0.0715, K, ,0.16,0.0695, K, ,0.163,0.0625, K, ,0.163,0.0565, K, ,0.16,0.0565, K, ,0.16,0.0495, K, ,0.162,0.0475, K, ,0.2025,0.0475, K, ,0.2025,0.0255, K, ,0.1925,0.0255, K, ,0.1925,0.0375, K, ,0.1765,0.0375,K, ,0.17,0.0265,K, ,0.17,0,SAVE2.2. 将界面调整适合于窗口：点击右侧工具栏的Fit View。或用命令：/AUTO,1 /REP,FAST2.3. 打开点号：Utility Menu PlotCtrls Numbering .设置点号为“on”，然后选择OK。或用命令：/PNUM,KP,1 /REPLOT2.4. 创建线，将关键点连接出来。Main Menu Preprocessor Modeling Create Lines Lines Straight Line 按照上图所示，依次将关键点连接，然后点保存。或用命令：LSTR, 1, 2 LSTR, 2, 3 LSTR, 3, 4 LSTR, 4, 5LSTR, 5, 6 LSTR, 6, 7LSTR, 7, 8 LSTR, 8, 9 LSTR, 9, 10 LSTR, 10, 11LSTR, 11, 12 LSTR, 12, 13LSTR, 13, 14 LSTR, 14, 15LSTR, 15, 16 LSTR, 16, 17LSTR, 17,1 8 LSTR, 18,1 9 LSTR, 19, 20 LSTR, 20, 21LSTR, 21, 22 LSTR, 22, 1SAVE2.5. 关闭点号，打开线号：Utility Menu PlotCtrls Numbering .设置点号为“off”，设置线号为“on”，然后选择OK。或用命令：/PNUM,KP,0/PNUM,LINE,1/REPLOT2.6. 倒圆角，以预先定义的线15，16，进行倒圆角处理，圆角半径为6mm：Main Menu Preprocessor Modeling Create Lines Line Fillet 选择界面中的L15和L16，点击OK，在Fillet radius中输入0.006，点击OK。或用命令：LFILLT,15,16,0.006, , 2.7. 创建平面1：Main Menu Preprocessor Modeling Create Areas Arbitrary By Lines 在对话框中，选择Loop选项，点击模型中的一条线，自动拾取整个封闭线环，点击OK确定，然后点保存。FLST,2,23,4 FITEM,2,3 FITEM,2,2 FITEM,2,1 FITEM,2,22 FITEM,2,21 FITEM,2,20 FITEM,2,19 FITEM,2,18 FITEM,2,17 FITEM,2,16 FITEM,2,23 FITEM,2,15 FITEM,2,14 FITEM,2,13 FITEM,2,12 FITEM,2,11 FITEM,2,10 FITEM,2,9 FITEM,2,8 FITEM,2,7 FITEM,2,6 FITEM,2,5 FITEM,2,4 AL,P51XSAVE3. 创建平面图形2：3.3.1. 创建关键点，将所有的点建立出来：K, ,0.15,0.151,K, ,0.159,0.151,K, ,0.163,0.143,K, ,0.163,0.137,K, ,0.1555,0.137,K, ,0.1555,0.1225,K, ,0.163,0.1225,K, ,0.163,0.117,K, ,0.16,0.117,K, ,0.16,0.114,K, ,0.163,0.107,K, ,0.163,0.101,K, ,0.16,0.101,K, ,0.16,0.098,K, ,0.163,0.091,K, ,0.163,0.086,SAVE3.2. 将界面调整适合于窗口：点击右侧工具栏的Fit View。或用命令：/AUTO,1 /REP,FAST3.3. 打开点号，关闭线号：Utility Menu PlotCtrls Numbering .设置点号为“on”，设置线号为“off”，然后选择OK。或用命令：/PNUM,KP,1 /PNUM,LINE,0/REPLOT3.4. 创建线，将关键点连接出来。Main Menu Preprocessor Modeling Create Lines Lines Straight Line 按照上图所示，依次将关键点连接，然后点保存。或用命令：LSTR, 4, 25 LSTR, 25, 26 LSTR, 26, 27 LSTR, 27, 28 LSTR, 28, 29 LSTR, 29, 30 LSTR, 30, 31LSTR, 31, 32 LSTR, 32, 33 LSTR, 33, 34 LSTR, 34, 35LSTR, 35, 36 LSTR, 36, 37LSTR, 37, 38 LSTR, 38, 39 LSTR, 39, 40 LSTR, 40, 4SAVE3.5. 关闭点号，打开线号：Utility Menu PlotCtrls Numbering .设置点号为“off”，设置线号为“on”，然后选择OK。或用命令：/PNUM,KP,0/PNUM,LINE,1/REPLOT3.6. 创建平面2：Main Menu Preprocessor Modeling Create Areas Arbitrary By Lines 弹出对话框后，选择组成平面2每一条线，点击OK确定，然后点保存。FLST,2,17,4 FITEM,2,29 FITEM,2,28 FITEM,2,27 FITEM,2,26 FITEM,2,25 FITEM,2,24 FITEM,2,30 FITEM,2,31 FITEM,2,32 FITEM,2,33 FITEM,2,34 FITEM,2,35 FITEM,2,36 FITEM,2,37 FITEM,2,38 FITEM,2,39 FITEM,2,40 AL,P51X SAVE4. 创建平面图形3：1.2.3.4.4.1. 创建关键点，将所有的点建立出来：K, ,0.165,0.1325,K, ,0.165,0.127,SAVE4.2. 将界面调整适合于窗口：点击右侧工具栏的Fit View。或用命令：/AUTO,1 /REP,FAST4.3. 打开点号，关闭线号：Utility Menu PlotCtrls Numbering .设置点号为“on”，设置线号为“off”，然后选择OK。或用命令：/PNUM,KP,1 /PNUM,LINE,0/REPLOT4.4. 创建线，将关键点连接出来。Main Menu Preprocessor Modeling Create Lines Lines Straight Line 按照上图所示，依次将关键点连接，然后点保存。或用命令：LSTR, 28, 41LSTR, 41, 42 LSTR, 42, 31 SAVE4.5. 关闭点号，打开线号：Utility Menu PlotCtrls Numbering .设置点号为“off”，设置线号为“on”，然后选择OK。或用命令：/PNUM,KP,0/PNUM,LINE,1/REPLOT4.6. 创建平面3：Main Menu Preprocessor Modeling Create Areas Arbitrary By Lines 弹出对话框后，选择组成平面3的每一条线，点击OK确定，然后点保存。或用命令：FLST,2,6,4 FITEM,2,42 FITEM,2,41 FITEM,2,28 FITEM,2,29 FITEM,2,30 FITEM,2,43 AL,P51XSAVE5. 创建平面图形4：5.5.1. 创建关键点，将所有的点建立出来：K, ,0.1635,0.157,K, ,0.1605,0.157,K, ,0.1605,0.1535,K, ,0.1645,0.1495,K, ,0.1685,0.1495,K, ,0.1715,0.1525,K, ,0.1715,0.1685,K, ,0.1635,0.1685,SAVE5.2. 将界面调整适合于窗口