ANSYS結(jié)構(gòu)動(dòng)力分析計(jì)算示例

ANSYS結(jié)構(gòu)動(dòng)力分析計(jì)算示例一長(zhǎng)方形板，其高為2m，寬為1m，厚度為0.03m，彈性模量E=3GPa，泊松比μ=0.3，密度為7800kg/m3。約束條件：長(zhǎng)方形板底邊固定。試作此長(zhǎng)方形的模態(tài)分析。ANSYS結(jié)構(gòu)動(dòng)力分析計(jì)算示例一長(zhǎng)方形板，其1（1）選擇單元類型1.運(yùn)行Preprocessor>ElementType>Add/Edit/Delete2.彈出ElementTypes對(duì)話框，如圖1所示圖1單元類型對(duì)話框3.單擊Add（1）選擇單元類型1.運(yùn)行Preprocessor>Ele24.彈出LibraryofElementTypes窗口，如圖2所示5.選擇SHELL63單元，單擊OK按鈕圖2單元類型庫(kù)對(duì)話框4.彈出LibraryofElementTypes窗3(2)設(shè)置板厚度1.運(yùn)行Preprocessor>RealConstants>Add/Edit/Delete2.單擊Add3.單擊OK，彈出如圖3所示對(duì)話框圖3SHELLL63單元實(shí)常數(shù)設(shè)置4.在TK(I)選項(xiàng)欄里填入板厚參數(shù)0.035.設(shè)置完畢單擊OK(2)設(shè)置板厚度1.運(yùn)行Preprocessor>Rea4（3）設(shè)置材料屬性1.運(yùn)行Preprocessor>MaterialProps>MaterialModels2.雙擊Structural>Linear>Elastic>Isotropic圖4選擇材料屬性對(duì)話框（3）設(shè)置材料屬性1.運(yùn)行Preprocessor>Mat5圖5設(shè)置材料屬性對(duì)話框3.彈出圖54.單擊OK圖6設(shè)置材料密度對(duì)話框圖5設(shè)置材料屬性對(duì)話框3.彈出圖54.單擊OK圖6設(shè)6（4）建立模型1.選擇Preprocessor>Modeling>Create>Area>Rectangle>By2Corners2.彈出圖7，在WPX欄內(nèi)輸入0,在WPY圖7依2點(diǎn)創(chuàng)建矩形對(duì)話框欄內(nèi)輸入0，在Width欄內(nèi)輸入1,在Height欄內(nèi)輸入23.單擊OK,得到圖8（4）建立模型1.選擇Preprocessor>Mode7圖8長(zhǎng)方形板模型圖8長(zhǎng)方形板模型8（5）劃分網(wǎng)格1.運(yùn)行MainMnue>Preprocessor>Meshing>SizeCntrls>ManualSize>Areas>AllAreas2.彈出如圖9所示對(duì)話框圖9設(shè)置網(wǎng)格尺寸對(duì)話框3.在SIZE選項(xiàng)欄中填寫0.1，點(diǎn)擊OK（5）劃分網(wǎng)格1.運(yùn)行MainMnue>Preproce94.運(yùn)行MainMnue>Preprocessor>Meshing>Mesh>Areas>Free5.拾取長(zhǎng)方形劃分網(wǎng)格，網(wǎng)格劃分如圖10所示圖10長(zhǎng)方形板有限元模型4.運(yùn)行MainMnue>Preprocessor>Me10（6）施加約束1.運(yùn)行MainMenu>Solution>DefineLoads>Apply>Structure>Displacement>OnLines2.選擇長(zhǎng)方形底邊，施加全約束（7）設(shè)定自然振動(dòng)分析模型1.運(yùn)行MainMenu>Solution>AnalysisType>NewAnalysis2.彈出如圖11所示的對(duì)話框,選擇Modal，圖11設(shè)置分析類型對(duì)話框（6）施加約束1.運(yùn)行MainMenu>Solution11（8）定義振動(dòng)頻率及輸入振動(dòng)模型個(gè)數(shù)1.運(yùn)行MainMenu>Solution>AnalysisType>AnalysisOptions2.彈出如圖12所示的對(duì)話框,選擇Reduced，圖12模態(tài)分析設(shè)置對(duì)話框（8）定義振動(dòng)頻率及輸入振動(dòng)模型個(gè)數(shù)1.運(yùn)行MainMe123.在No.modestoextract中輸入6,單擊OK圖13模態(tài)分析的頻率與階數(shù)設(shè)置對(duì)話框4.彈出如圖13所示的對(duì)話框5.在FREQB后面的兩個(gè)文本框中分別輸入0和10006.在PRMODE文本框中分別輸入6,在Nrmkey下拉列表中選擇Tomassmatrix7.單擊OK3.在No.modestoextract中輸入6,單13（9）設(shè)置主自由度1.運(yùn)行MainMenu>Solution>MasterDOFs>ProgramSelected2.彈出圖14所示對(duì)話框3.在NTOT文本框中輸入204.單擊OK圖14設(shè)定主自由度個(gè)數(shù)對(duì)話框（9）設(shè)置主自由度1.運(yùn)行MainMenu>Soluti14（10）運(yùn)行振動(dòng)特征值分析1.運(yùn)行Solution>Solve>CurrentLS2.計(jì)算結(jié)束運(yùn)行Solution>LoadStepOpts>ExpansionPass>SingleExpand>ExpandModes3.彈出圖15所示對(duì)話框圖15擴(kuò)展解頻率與階數(shù)設(shè)置對(duì)話框（10）運(yùn)行振動(dòng)特征值分析1.運(yùn)行Solution>Sol154.在NMODE文本框中輸入6

5.在FREQB文本框中分別輸入0和10006.選擇ElcaleCalculateelemresults7.在SIGNIF文本框中輸入0.0018.單擊OK4.在NMODE文本框中輸入65.在FREQB文本框中16（11）進(jìn)行振動(dòng)特征向量分析1.運(yùn)行Solution>Solve>CurrentLS2.計(jì)算完畢后，點(diǎn)擊close,關(guān)閉對(duì)話框。（12）后處理1.運(yùn)行GeneralPostproc>ResultsSummary2.彈出圖16圖16結(jié)果列表（11）進(jìn)行振動(dòng)特征向量分析1.運(yùn)行Solution>So173.要讀取一階模態(tài)分析動(dòng)畫演示，可以運(yùn)行GeneralPostproc>ReadResults>FirstSet4.運(yùn)行PoltCtrls>Animate>ModeShape5.彈出圖17所示對(duì)話框圖17動(dòng)畫演示設(shè)置對(duì)話框3.要讀取一階模態(tài)分析動(dòng)畫演示，可以運(yùn)行GeneralP186.在DisplayType選項(xiàng)欄中選擇DOFsolution和Def+undeformed7.觀看一階模態(tài)分析動(dòng)畫過程8.要讀取下階模態(tài)分析動(dòng)畫演示，運(yùn)行GeneralPostproc>ReadResults>NextSet9.運(yùn)行PoltCtrls>Animate>ModeShape10讀取任意階模態(tài)分析動(dòng)畫演示，運(yùn)行GeneralPostproc>ReadResults>BySetNumber11.運(yùn)行PoltCtrls>Animate>ModeShape6.在DisplayType選項(xiàng)欄中選擇DOFsolu19（13）位移與應(yīng)力云圖顯示1.運(yùn)行GeneralPostproc>PlotResults>ContourPlot>NodalSolu2.彈出圖18所示對(duì)話框圖18云圖顯示對(duì)話框（13）位移與應(yīng)力云圖顯示1.運(yùn)行GeneralPos203.單擊DOFSolution>Displacementvectorsum4.顯示長(zhǎng)方形板的位移云圖圖191階位移云圖3.單擊DOFSolution>Displacemen21圖202階位移云圖圖213階位移云圖圖202階位移云圖圖213階位移云圖225.單擊Stress>vonMisesstress6.顯示長(zhǎng)方形板的應(yīng)力云圖圖221階應(yīng)力云圖5.單擊Stress>vonMisesstress623圖232階應(yīng)力云圖圖243階應(yīng)力云圖圖232階應(yīng)力云圖圖243階應(yīng)力云圖24ANSYS結(jié)構(gòu)動(dòng)力分析計(jì)算示例一長(zhǎng)方形板，其高為2m，寬為1m，厚度為0.03m，彈性模量E=3GPa，泊松比μ=0.3，密度為7800kg/m3。約束條件：長(zhǎng)方形板底邊固定。試作此長(zhǎng)方形的模態(tài)分析。ANSYS結(jié)構(gòu)動(dòng)力分析計(jì)算示例一長(zhǎng)方形板，其25（1）選擇單元類型1.運(yùn)行Preprocessor>ElementType>Add/Edit/Delete2.彈出ElementTypes對(duì)話框，如圖1所示圖1單元類型對(duì)話框3.單擊Add（1）選擇單元類型1.運(yùn)行Preprocessor>Ele264.彈出LibraryofElementTypes窗口，如圖2所示5.選擇SHELL63單元，單擊OK按鈕圖2單元類型庫(kù)對(duì)話框4.彈出LibraryofElementTypes窗27(2)設(shè)置板厚度1.運(yùn)行Preprocessor>RealConstants>Add/Edit/Delete2.單擊Add3.單擊OK，彈出如圖3所示對(duì)話框圖3SHELLL63單元實(shí)常數(shù)設(shè)置4.在TK(I)選項(xiàng)欄里填入板厚參數(shù)0.035.設(shè)置完畢單擊OK(2)設(shè)置板厚度1.運(yùn)行Preprocessor>Rea28（3）設(shè)置材料屬性1.運(yùn)行Preprocessor>MaterialProps>MaterialModels2.雙擊Structural>Linear>Elastic>Isotropic圖4選擇材料屬性對(duì)話框（3）設(shè)置材料屬性1.運(yùn)行Preprocessor>Mat29圖5設(shè)置材料屬性對(duì)話框3.彈出圖54.單擊OK圖6設(shè)置材料密度對(duì)話框圖5設(shè)置材料屬性對(duì)話框3.彈出圖54.單擊OK圖6設(shè)30（4）建立模型1.選擇Preprocessor>Modeling>Create>Area>Rectangle>By2Corners2.彈出圖7，在WPX欄內(nèi)輸入0,在WPY圖7依2點(diǎn)創(chuàng)建矩形對(duì)話框欄內(nèi)輸入0，在Width欄內(nèi)輸入1,在Height欄內(nèi)輸入23.單擊OK,得到圖8（4）建立模型1.選擇Preprocessor>Mode31圖8長(zhǎng)方形板模型圖8長(zhǎng)方形板模型32（5）劃分網(wǎng)格1.運(yùn)行MainMnue>Preprocessor>Meshing>SizeCntrls>ManualSize>Areas>AllAreas2.彈出如圖9所示對(duì)話框圖9設(shè)置網(wǎng)格尺寸對(duì)話框3.在SIZE選項(xiàng)欄中填寫0.1，點(diǎn)擊OK（5）劃分網(wǎng)格1.運(yùn)行MainMnue>Preproce334.運(yùn)行MainMnue>Preprocessor>Meshing>Mesh>Areas>Free5.拾取長(zhǎng)方形劃分網(wǎng)格，網(wǎng)格劃分如圖10所示圖10長(zhǎng)方形板有限元模型4.運(yùn)行MainMnue>Preprocessor>Me34（6）施加約束1.運(yùn)行MainMenu>Solution>DefineLoads>Apply>Structure>Displacement>OnLines2.選擇長(zhǎng)方形底邊，施加全約束（7）設(shè)定自然振動(dòng)分析模型1.運(yùn)行MainMenu>Solution>AnalysisType>NewAnalysis2.彈出如圖11所示的對(duì)話框,選擇Modal，圖11設(shè)置分析類型對(duì)話框（6）施加約束1.運(yùn)行MainMenu>Solution35（8）定義振動(dòng)頻率及輸入振動(dòng)模型個(gè)數(shù)1.運(yùn)行MainMenu>Solution>AnalysisType>AnalysisOptions2.彈出如圖12所示的對(duì)話框,選擇Reduced，圖12模態(tài)分析設(shè)置對(duì)話框（8）定義振動(dòng)頻率及輸入振動(dòng)模型個(gè)數(shù)1.運(yùn)行MainMe363.在No.modestoextract中輸入6,單擊OK圖13模態(tài)分析的頻率與階數(shù)設(shè)置對(duì)話框4.彈出如圖13所示的對(duì)話框5.在FREQB后面的兩個(gè)文本框中分別輸入0和10006.在PRMODE文本框中分別輸入6,在Nrmkey下拉列表中選擇Tomassmatrix7.單擊OK3.在No.modestoextract中輸入6,單37（9）設(shè)置主自由度1.運(yùn)行MainMenu>Solution>MasterDOFs>ProgramSelected2.彈出圖14所示對(duì)話框3.在NTOT文本框中輸入204.單擊OK圖14設(shè)定主自由度個(gè)數(shù)對(duì)話框（9）設(shè)置主自由度1.運(yùn)行MainMenu>Soluti38（10）運(yùn)行振動(dòng)特征值分析1.運(yùn)行Solution>Solve>CurrentLS2.計(jì)算結(jié)束運(yùn)行Solution>LoadStepOpts>ExpansionPass>SingleExpand>ExpandModes3.彈出圖15所示對(duì)話框圖15擴(kuò)展解頻率與階數(shù)設(shè)置對(duì)話框（10）運(yùn)行振動(dòng)特征值分析1.運(yùn)行Solution>Sol394.在NMODE文本框中輸入6

5.在FREQB文本框中分別輸入0和10006.選擇ElcaleCalculateelemresults7.在SIGNIF文本框中輸入0.0018.單擊OK4.在NMODE文本框中輸入65.在FREQB文本框中40（11）進(jìn)行振動(dòng)特征向量分析1.運(yùn)行Solution>Solve>CurrentLS2.計(jì)算完畢后，點(diǎn)擊close,關(guān)閉對(duì)話框。（12）后處理1.運(yùn)行GeneralPostproc>ResultsSummary2.彈出圖16圖16結(jié)果列表（11）進(jìn)行振動(dòng)特征向量分析1.運(yùn)行Solution>So413.要讀取一階模態(tài)分析動(dòng)畫演示，可以運(yùn)行GeneralPostproc>ReadResults>FirstSet4.運(yùn)行PoltCtrls>Animate>ModeShape5.彈出圖17所示對(duì)話框圖17動(dòng)畫演示設(shè)置對(duì)話框3.要讀取一階模態(tài)分析動(dòng)畫演示，可以運(yùn)行GeneralP426.在DisplayType選項(xiàng)欄中選擇DOFsoluti