ansys课程设计.docx
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ansys课程设计
课程名称:
ANSYS上机
设计题目:
ANSYS上机课程设计
院系:
专业:
年级:
姓名:
一、设计目的
对ansys有一个初步的了解,熟悉。
通过ansys的操作,了解ansys的基本操作步骤和功能,学会对钢架建模并进行内力分析。
二、设计任务
完成钢架的建模并用NSYS软件绘制出梁的基本结构图、变形图及内力图,并用列表的形式列出各单元的内力值,并写出大致步骤。
三、设计内容
如图所示,钢架受力结构,弹性模量E=2.1957e11KN/cm2,泊松比u=0.3,密度为7.85g/cm3,其断面为矩形,宽为1.07cm,高为1.57厘米
求请以MechanicalanalysisonRigidframe-20097957为分析标题,用ANSYS软件绘制出梁的基本结构图、变形图及内力图,并用列表的形式列出各单元的内力值。
(单元划分时,每个单元长度不大于0.2m)<计梁自重>
四、设计步骤
1.创建物理环境
(1)过滤图形界面:
执行“Mainmenu-Preferences”菜单命令,打开“PreferencesforGUIFiltering”对话框,选择“Structural”项来对后面的分析进行菜单及相应的图形界面过滤。
定义工作标题:
执行“UtilityMain-File-ChangeTitle”菜单命令
(2)定义单元类型:
执行“Mainmenu-Preferences-ElementType-Add/Edit/Delete”菜单命令,打开“ElementType”单元类型对话框,
(3)定义材料属性:
执行“MainMenu-Preprocessor-MaterialProps-MaterialMaterialModels”菜单命令
(4)定义实常数:
执行“MainMenu-Preprocessor-RealConstants-Add/Edit/Delete”菜单命令
2.建立模型和划分网格
(1)创建钢架关键点:
执行“MainMenu-Preprocessor-Modeling-Create-Keypoints-InActiveCS”菜单命令
(2)创建钢架模型:
执行“MainMenu-Preprocessor-Modeling-Create-Lines-linesStraightLine”菜单命令
(3)为线赋予特性:
执行“MainMenu-Preprocessor-Meshing-MeshTool”菜单命令,打开
MeshTool”对话框
(4)划分网格:
在“MeshTool”工具栏中单击Mesh按钮,打开一个对话框,单击“PickALL”
按钮。
生成个梁单元
3.加约束和荷载
(1)给梁节点施加约束:
执行“MainMenu-Solution-DefineLoad-Apply-Structural-Displacement-
OnNodes“菜单命令
(2)梁施加荷载:
执行“MainMenu-Solution-DefineLoad-Apply-Structural-
4.求解
求解运算:
执行“MainMenu-Solution-Solve-CurrentLS”菜单命令,打开一个求解选项信息
和一个当前求解载荷步对话框,如下图所示,检查信息无错误后,单击OK按钮,开始求
运算。
直到出现一个“Solutionisdone”的提示栏,表示求解结束。
5.后处理
1.查看钢架变形图:
执行“MainMenu-GeneralPlotResults-Deformedshape”菜单命令,打开
一个“PlotDeformedShape“的对话框,接着选择”Def+undeformed“单选按钮并单击OK按
钮,就得钢架变形图
2.将节点弯矩、剪力、轴力制表:
执行“MainMenu-GeneralPostproc-ElementTable-DefineTable
”菜单命令,打开一个“ElementTableData”对话框,单击Add按钮,打开一个“DefineAdditionalElementTableItems”对话框,依次输入“im,6”、“jm,12”、“iq,2”、“jq,8”、“in,1”、“jn,7”
3.画结构弯矩图:
执行“MainMenu-GeneralPosrproc-PlotResults-ContourPlot-LineElementResults”菜单命令,打开一个“PoltLine-ElementResults”对话框,如下图,在“ElemtableitematnodeI”栏后面的下拉菜单中选取“im”,在“ElemtableitematnodeJ”栏后面的下拉菜单中选取“jm”,在Optionalscalefactor“后面栏中输入“-1,在“Itemstobeplottedon”栏后面选择“unDeformedshape”单选按钮,最后单击OK按钮,得到钢架结构的弯矩图
4.画结构剪力图:
执行“MainMenu-GeneralPostproc-PlotResults-ContourPlot-LineElementResults”菜单命令,打开一个“PlotLine-ElementResults”对话框,如下图,在“ElemtableitematnodeI”栏后面的下拉菜单中选取“iq”,在“ElemtableitematnodeJ”栏后面的下拉菜单中选取“jq”,在Optionalscalefactor“后面栏中输入“1,在“Itemstobeplottedon”栏后面选择“unDeformedshape”单选按钮,最后单击OK按钮,得到钢架结构的弯矩图
5.画结构轴力图:
执行“MainMenu-GeneralPostproc-PlotResults-ContourPlot-LineElementResults”菜单命令,打开一个“PlotLine-ElementResults”对话框,如下图,在“ElemtableitematnodeI”栏后面的下拉菜单中选取“in”,在“ElemtableitematnodeJ”栏后面的下拉菜单中选取“jm”,在Optionalscalefactor“后面栏中输入“1,在“Itemstobeplottedon”栏后面选择“unDeformedshape”单选按钮,最后单击OK按钮,得到钢架结构的弯矩图
6.列表显示单元的弯矩、剪力和轴力:
执行“MainMenu-GeneralPostproc-ListResults-ElementTableData”菜单命令,打开一个“ListElementTableData”对话框,在“Itemstobelisted”栏后面的下拉菜单中选择“im、Jjm、iq、jq、in、jn项,然后单击OK按钮,打开数据表文件
五、设计结果
PRINTELEMENTTABLEITEMSPERELEMENT
*****POST1ELEMENTTABLELISTING*****
STATCURRENTCURRENTCURRENTCURRENTCURRENT
ELEMJMIQJQINJN
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14-4072.256002.60310.-0.18626E-08-0.18626E-08
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16-8380.064617.68925.0.00000.0000
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410.20522E+06-0.12141E+06-97804.-39141.-39141.
*****POST1ELEMENTTABLELISTING*****
STATCURRENTCURRENTCURRENTCURRENTCURRENT
ELEMJMIQJQINJN
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*****POST1ELEMENTTABLELISTING*****
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