練習(xí)I-03(熱分析-帶散熱片的軸對(duì)稱(chēng)管)

1、帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管練習(xí)練習(xí) 3熱分析熱分析INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-23. 熱分析熱分析 帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管 說(shuō)明說(shuō)明一個(gè)帶散熱片的管，在給定的荷載條件下，分析溫度和熱量分布一個(gè)帶散熱片的管，在給定的荷載條件下，分析溫度和熱量分布（請(qǐng)看下一頁(yè)）。（請(qǐng)看下一頁(yè)）。該模型是軸對(duì)稱(chēng)的。僅分析散熱片的一半，模型的底部為對(duì)稱(chēng)約該模型是軸對(duì)稱(chēng)的。僅分析散

2、熱片的一半，模型的底部為對(duì)稱(chēng)約束。束。INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-33. 熱分析熱分析 帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管荷載及材料特性荷載及材料特性INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #0

3、01442W3-43. 熱分析熱分析 帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管按教師指定的工作目錄，用按教師指定的工作目錄，用“pipe-th”作為作業(yè)名，進(jìn)入作為作業(yè)名，進(jìn)入ANSYS。2.設(shè)定設(shè)定 GUI選擇為熱分析選擇為熱分析:Main Menu Preferences 選擇選擇 “Thermal”, 然后按然后按 OK3.讀入文件讀入文件“pipe-th.inp”，創(chuàng)建創(chuàng)建 2-D軸對(duì)稱(chēng)模型，在線(xiàn)上確定網(wǎng)格劃分份數(shù)軸對(duì)稱(chēng)模型，在線(xiàn)上確定網(wǎng)格劃分份數(shù):Utility Menu File Read Input from 選擇選擇“pipe-th.inp”,然后按然后按 OK或用命令:/INPU

4、T,pipe-th,inpINTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-53. 熱分析熱分析 帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管4.定義第一種單元類(lèi)型為定義第一種單元類(lèi)型為PLANE55 ，設(shè)置，設(shè)置 keyopt(3)=axisymmetric:Main Menu Preprocessor Element Type Add/Edit/Delete 按按Add .拾取拾取 “Thermal So

5、lid” 和和 “Quad 4node 55”, 然后按然后按 OK選擇選擇Options .設(shè)置設(shè)置 K3 = 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 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-65.從材料庫(kù)中讀取材料特性，選擇從材料庫(kù)中讀取材料特性，選擇 304無(wú)應(yīng)變鋼無(wú)應(yīng)變鋼:Main Menu Preprocessor M

6、aterial Props Material Library Import Library 選擇選擇 “BIN”, 然后按然后按 OK選擇選擇“Stl_AISI-304.BIN_MPL”,然后按然后按OK觀(guān)察觀(guān)察 ansuitmp 窗口窗口關(guān)閉關(guān)閉 ansuitmp 窗口窗口3. 熱分析熱分析 帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管向教師詢(xún)問(wèn)材料庫(kù)路徑向教師詢(xún)問(wèn)材料庫(kù)路徑INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #

7、001442W3-73. 熱分析熱分析 帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管用用2D四邊形單元，并用映射網(wǎng)格劃分單元：四邊形單元，并用映射網(wǎng)格劃分單元：Main Menu Preprocessor MeshTool 在整體網(wǎng)格控制拾取在整體網(wǎng)格控制拾取 Set 設(shè)置設(shè)置SIZE = 0.25/2, 然后按然后按 OK選擇選擇 “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 ANS

8、YS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-83. 熱分析熱分析 帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管7.在實(shí)體模型的線(xiàn)上施加對(duì)流荷載在實(shí)體模型的線(xiàn)上施加對(duì)流荷載Main Menu Solution -Loads- Apply -Thermal- Convection On Lines +拾取外邊四條線(xiàn)拾取外邊四條線(xiàn) (10, 2, 7, 和和 6),然后按然后按 OK設(shè)置設(shè)置VALI = 0.69e-4， VAL2I = 70,然后按然后按Apply拾取內(nèi)部?jī)蓷l線(xiàn)拾取內(nèi)部?jī)蓷l線(xiàn) (9 和和 13)

9、,然后按然后按OK設(shè)置設(shè)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, ,450GPLOTINTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Pa

10、rt 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-93. 熱分析熱分析 帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管8.保存數(shù)據(jù)庫(kù)并開(kāi)始求解：保存數(shù)據(jù)庫(kù)并開(kāi)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觀(guān)察觀(guān)察 “/STATUS Command” 窗口然后關(guān)閉它窗口然后關(guān)閉它按按OK按按Close -求解完成后關(guān)閉黃色信息

11、框求解完成后關(guān)閉黃色信息框或用命令:SAVE/SOLUSOLVE9.進(jìn)入通用后處理器并觀(guān)察結(jié)果：進(jìn)入通用后處理器并觀(guān)察結(jié)果：Main Menu General Postproc 或用命令:/POST1INTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-103. 熱分析熱分析 帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管9a. 畫(huà)出溫度畫(huà)出溫度:Main Menu General Postproc Plot Re

12、sults -Contour Plot- Nodal Solu .選取選取 “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 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-113. 熱分析熱分析 帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管9b. 畫(huà)出熱流量：畫(huà)出熱流量：Main Menu General Postpr

13、oc Plot Results -Contour Plot- Nodal Solu .選取選取 “Flux & gradient” 和和“Thermal flux TFSUM”, 然后按然后按 OK或用命令:PLNSOL,TF,SUMINTRODUCTION TO ANSYS 5.7 - Part 1INTRODUCTION TO ANSYS 5.7 - Part 1Workshop SupplementJanuary 30, 2001Inventory #001442W3-123. 熱分析熱分析 帶散熱片的軸對(duì)稱(chēng)管帶散熱片的軸對(duì)稱(chēng)管9c. 畫(huà)出熱梯度：畫(huà)出熱梯度：Main M1enu General Postproc Plot Results -Contour Plot- Nodal Solu .選取選取“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 1Workshop Supplemen