埃菲尔铁塔简化结构分析埃菲尔铁塔从1887年起建,分为三楼,总高320米,分别在离地面57.6米、115.7米和276.1米处,其中一、二楼设有餐厅,第三楼建有观景台,从塔座到塔顶共有1711级阶梯,共用去钢铁7000吨,12000个金属部件,259万只铆钉,极为壮观。塔身主要受的是风载其高处受的是238km/h的风载,低处受的是169km/h的风载。将其简化为一个梁单元。分析步骤:1、改工作名程序→ANSYS→ANSYSInteractive→Workingdirectory(设置工作目录)→Initialjobname:EiffelTower(设置工作文件名)→Run→OK2、过滤界面MainMenu:Preferences…弹出如图所示项→Structural→OK3、定义单元类型MainMenu:Preprocessor→ElementType→Add/Edit/Delete...→Add…→beam:2delastic3→OK(返回到ElementTypes窗口)(4)定义实常数ANSYSMainMenu:Preprocessor→RealConstants…→Add…→在cross-setionalarea里输入(1e-3)→OK→(关闭RealConstants窗口)(5)定义材料参数ANSYSMainMenu:Preprocessor→MaterialProps→MaterialModels→Structural→Linear→Isotropic→EX:2e11PRXY:0.3(定义泊松比及弹性模量)→OK定义密度DENS7800(6)构造平面模型生成节点ANSYSMainMenu:Preprocessor→Modeling→Create→Nodes→InActiveCS→Nodenumber:1,X,Y,ZLocationinactiveCS:(-60,0,0)2(60,0,0)3(-44,58,0)4(44,58,0)5(-25,116,0)6(25,116,0)7(-12,276,0)8(12,276,0)9(-12,320,0)10(12,320,0)(7)模型加约束左边施加X,Y方向的位移约束ANSYSMainMenu:Solution→DefineLoads→Apply→-Structural→DisplacementOnNodes→地面两个节点→OK→Lab2:AllDOF(施加X,Y方向的位移约束)→OK(8)施加载荷ANSYSMainMenu:Solution→DefineLoads→Apply→Structural→Force/Moment→OnNodes→OK→Lab:FX,Value:-200010(9)计算分析ANSYSMainMenu:Solution→AnalysisType→NewAnalysis→Static→OKANSYSMainMenu:Solution→Solve→CurrentLS→OK(10)计算结果ANSYSMainMenu:GeneralPostproc→PlotResults→ContourPlot→NodalSolu→Nodalsolution→DOFSolution→Displacementvectorsum→OK(观察位移矢量分布)ANSYSMainMenu:GeneralPostproc→ListResults→NodalSolu→Nodalsolution→DOFSolution→Displacementvectorsum→OK(查看各节点位移精确值)ANSYSMainMenu:GeneralPostproc→PlotResults→deformedshape(查看位移变化)命令流:/CLEAR/FILNAME,EiffelTowerA=1e-3/PREP7!*FINI/BATCH/GRA,POWER/GST,ON/PLO,INFO,3/GRO,CURL,ON/CPLANE,1/REPLOT,RESIZEWPSTYLE,,,,,,,,0/REPLOT,RESIZE/PREP7FINISH/PREP7!*FLST,3,5,8FITEM,3,-0.15,-0.3,0FITEM,3,0.2,-0.25,0FITEM,3,0.3,0.2,0FITEM,3,-0.3,0.2,0FITEM,3,-0.45,0,0K,,P51XLSTR,4,5LSTR,5,1LSTR,1,2LSTR,2,3LSTR,3,4LSTR,4,1LSTR,5,3LSTR,3,1LSTR,2,4LSTR,5,2L,1,4/VIEW,1,1,1,1/ANG,1/REP,FAST/VIEW,1,1,2,3/ANG,1/REP,FAST/VIEW,1,,,1/ANG,1/REP,FAST/VIEW,1,,1/ANG,1/REP,FAST/VIEW,1,,,-1/ANG,1/REP,FAST/VIEW,1,-1/ANG,1/REP,FAST/VIEW,1,,-1/ANG,1/REP,FAST/AUTO,1/REP,FAST/ANG,1,30,XS,1/REP,FAST/ANG,1,-30,YS,1/REP,FAST/ANG,1,30,ZS,1/REP,FASTFINISH/REPLOT!*K,7,,,,K,8,,,0.05,K,9,,0.1,0.05,LSTR,7,8LSTR,8,9!*LFILLT,7,8,0.015,,LSTR,1,4ASBL,1,10/DIST,1,0.729,1/REP,FASTGPLOTFLST,5,3,4,ORDE,2FITEM,5,2FITEM,5,-4CM,_Y,LINELSEL,,,,P51XCM,_Y1,LINECMSEL,,_Y!*LESIZE,_Y1,,,3,,,,,1!*FLST,5,3,4,ORDE,2FITEM,5,7FITEM,5,-9CM,_Y,LINELSEL,,,,P51XCM,_Y1,LINECMSEL,,_Y!*LESIZE,_Y1,0.01,!*MSHAPE,0,2DMSHKEY,0!*FLST,5,2,5,ORDE,2FITEM,5,2FITEM,5,-3CM,_Y,AREAASEL,,,,P51XCM,_Y1,AREACHKMSH,'AREA'CMSEL,S,_Y!*AMESH,_Y1!*CMDELE,_YCMDELE,_Y1CMDELE,_Y2!*FINISH/PREP7!*ET,1,PLANE42!*ET,2,SOLID45!*!*MPTEMP,,,,,,,,MPTEMP,1,0MPDATA,EX,1,,2e11MPDATA,PRXY,1,,0.3RPR4,6,,,0.01,/VIEW,1,1,1,1/ANG,1/REP,FAST/AUTO,1/REP/PNUM,KP,1/PNUM,LINE,1/PNUM,AREA,0/PNUM,VOLU,0/PNUM,NODE,0/PNUM,TABN,0/PNUM,SVAL,0/NUMBER,0!*/PNUM,ELEM,0/REPLOT!*K,7,,,,K,8,,,0.05,K,9,,0.1,0.05,LSTR,7,8LSTR,8,9!*LFILLT,7,8,0.015,,LSTR,1,4ASBL,1,10FLST,5,3,4,ORDE,2FITEM,5,2FITEM,5,-4CM,_Y,LINELSEL,,,,P51XCM,_Y1,LINECMSEL,,_Y!*LESIZE,_Y1,,,3,,,,,1!*FLST,5,3,4,ORDE,2FITEM,5,7FITEM,5,-9CM,_Y,LINELSEL,,,,P51XCM,_Y1,LINECMSEL,,_Y!*LESIZE,_Y1,0,01,,,,,,,1!*SOLVEFINISH/POST1ETABLE,FA,SMISC,1ETABLE,SA,LS,1PRETAB,FA,SAFINISH