练习I-08(热分析-带散热片的轴对称管)

1、带散热片的轴对称管带散热片的轴对称管练习练习 3热热分析分析INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-23. 热热分析分析

2、带散热片的轴对称管带散热片的轴对称管 说明说明一个带散热片的管，在给定的荷载条件下，分析温度和热量分布一个带散热片的管，在给定的荷载条件下，分析温度和热量分布（请看下一页）。（请看下一页）。该该模型是轴对称的。仅分析散热片的一半，模型的底部为对称约模型是轴对称的。仅分析散热片的一半，模型的底部为对称约束。束。INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCT

3、ION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-33. 热分析热分析 带散热片的轴对称管带散热片的轴对称管荷载及材料特性荷载及材料特性INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODU

4、CTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-43. 热分析热分析 带散热片的轴对称管带散热片的轴对称管1.按教师指定的工作目录，用按教师指定的工作目录，用“pipe-th”作为作业名，进入作为作业名，进入ANSYS。2.设定设定 GUI选择为热分析选择为热分析:Main Menu Preferences 选择选择 “Thermal”, 然后按然后按 OK3.读入文件读入文件“pipe-th.inp”，创建创建

5、 2-D轴对称模型，在线上确定网格划分份数轴对称模型，在线上确定网格划分份数:Utility Menu File Read Input from 选择选择“pipe-th.inp”,然后按然后按 OK或用命令:/INPUT,pipe-th,inpINTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODU

6、CTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-53. 热分析热分析 带散热片的轴对称管带散热片的轴对称管4.定义第一种单元类型为定义第一种单元类型为PLANE55 ，设置，设置 keyopt(3)=axisymmetric:Main Menu Preprocessor Element Type Add/Edit/Delete 按按Add .拾取拾取 “Thermal Solid” 和和 “Quad 4node 55”, 然后按然后按 OK选择选择Options .设置设置 K3

7、 = Axisymmetric,然后按然后按OK按按Close或用命令:ET,1,PLANE55, , , 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Invent

8、ory #001442W3-65.从从材料库中读取材料特性，选择材料库中读取材料特性，选择 304无应变钢无应变钢:Main Menu Preprocessor Material Props Material Library Import Library 选择选择 “BIN”, 然后按然后按 OK选择选择“Stl_AISI-304.BIN_MPL”,然后按然后按OK观察观察 ansuitmp 窗口窗口关闭关闭 ansuitmp 窗口窗口3. 热分析热分析 带散热片的轴对称管带散热片的轴对称管向教师询问材料库路径向教师询问材料库路径INTRODUCTION TO ANSYS 5.7 - Part

9、 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-73. 热分析热分析 带散热片的轴对称管带散热片的轴对称管6.用用2D四边形单元，并用映射网格划分单元：四边形单元，并用映射网格划分单元：Main

10、 Menu Preprocessor MeshTool 在整体网格控制拾取在整体网格控制拾取 Set 设置设置SIZE = 0.25/2, 然后按然后按 OK选择选择 “Mapped”,然后按然后按Mesh拾取拾取Pick All按按Close或用命令:MSHAPE,0,2DMSHKEY,1ESIZE,0.25/2AMESH,ALLINTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Par

11、t 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-83. 热分析热分析 带散热片的轴对称管带散热片的轴对称管7.在实体模型的线上施加对流荷载在实体模型的线上施加对流荷载Main Menu Solution -Loads- Apply -Thermal- Convection On Lines +拾取外边四条线拾取外边四条线 (10, 2, 7, 和和 6),然后按然后按 OK设置设置VALI =

12、 0.69e-4， VAL2I = 70,然后按然后按Apply拾取内部两条线拾取内部两条线 (9 和和 13),然后按然后按OK设置设置 VALI = 0.28e-3， VAL2I = 450,然后按然后按OKUtility Menu Plot Multi-Plots或用命令:/SOLUSFL,2,CONV,0.69e-4, ,70SFL,6,CONV,0.69e-4, ,70SFL,7,CONV,0.69e-4, ,70SFL,10,CONV,0.69e-4, ,70SFL,9,CONV,0.28e-3, ,450SFL,13,CONV,0.28e-3, ,450GPLOTINTRODUC

13、TION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-93. 热分析热分析 带散热片的轴对称管带散热片的轴对称管8.保存数据库并开始求解：保存数据库并开

14、始求解：Pick the “SAVE_DB” button in the Toolbar (or select: Utility Menu File Save as Jobname.db)Main Menu Solution -Solve- Current LS观察观察 “/STATUS Command” 窗口然后关闭它窗口然后关闭它按按OK按按Close -求解完成后关闭黄色信息框求解完成后关闭黄色信息框或用命令:SAVE/SOLUSOLVE9.进入通用后处理器并观察结果：进入通用后处理器并观察结果：Main Menu General Postproc 或用命令:/POST1INTRODUC

15、TION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-103. 热分析热分析 带散热片的轴对称管带散热片的轴对称管9a. 画出温度画出温度:Main M

16、enu General Postproc Plot Results -Contour Plot- Nodal Solu .选取选取 “DOF solution” 和和 “Temperature TEMP”, 然后按然后按 OK或用命令:/POST1PLNSOL,TEMPINTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - P

17、art 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-113. 热分析热分析 带散热片的轴对称管带散热片的轴对称管9b. 画出热流量：画出热流量：Main Menu General Postproc Plot Results -Contour Plot- Nodal Solu .选取选取 “Flux & gradient” 和和“Thermal flux TFSUM”, 然后按然后按 OK或用命令:PLNSOL,TF,SUMINTRODUCTION TO

18、 ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-123. 热分析热分析 带散热片的轴对称管带散热片的轴对称管9c. 画出热梯度：画出热梯度：Main M1enu General Postproc Plot Results -Contour Plot- Nodal Solu .选取选取“Flux & gradient” 和和 “Thermal grad TGSUM”, 然后按然后按 OK或用命令:PLNSOL,TG,SUMINTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1IN