有限元谐响应分析

1、谐响应分析实例如下图所示，弹簧质量系统受力示意1图，载荷F(t)随时间变化如图2所示，起频率变化范围为0到9Hz。弹簧的刚度系数k1=k2=k3=300N/m，质量块M1二M2=1kg，F0=300N。求系统的位移频率响应。图1图2操作过程1. 定义工作文件名和工作标题(1) 定义工作文件名。GUI：UtilityMenuFileChangeJobname。弹出下图对话框，在此出现的对话框输入“xielll”，并将“Newlonganderrorfile”复选框选为“yes”，单击【ok】按钮。:jjAiijerujtp(收茶亠團h凹瓦HOV21£01612!31.40_C_tf.u

2、却.璧迦卫.旦Tglb&eAwws静州i嗣c?udh>EilejacLctLLstElatPLotC.trLaSforkPlan亡F'ataK-rtfs血鈕oH±DJ?cylsEklpA(h"jeAibMneTIlawIIE«rHftrjjotoojinfttCan&riElPreferMMiesmPrpp-rncfswr田Svlui田<icnemTlwGROI旧PuLQR&diES«5BFini图1定义工作文件名2）定义工作标题。GUI：UtilityMenuFileChangeTitle命令。在出现的对话框

3、中输入“xie666”，单击【ok】按钮，如下图。L.gEJotPat£tTekaricFjArrfPsc*MrcEtuNaJ?treU«p卫ja|u吕|&空卫eliDOillgfHisaijmllgnT|pcbbekphIVbLl'i亡佩i已PFHfdirHClGHK田Pr亡p-rocesasorEluill111:iEKIraalFoe*!繩gfflIkBHlidIK9PiCIKIpri%fflKOIToolmPrnbDhkhe*Fl&dl&!leuOpl皂Igirinn.Itdliii»-SFiDlfibUQDK.SAnsys

4、rtis.aHOV272Dlti12；31；15"*1上创回ffj創OJ®J血型型虫虫削7|上_LJ創血型型型创图2定义工作标题2. 定义单元格GUI：MainMenuPreprocessorElementsTypeAdd/Edit/Delete在弹出的对话框，单击add按钮，弹出对话框，选择左边滚动窗口中的"Combination”，从而选择右边滚动窗口中的Spring-damper14”，“Elementtypereferencenumber”采用默认1.如图所示单击apply按钮。在左边滚动栏中继续选择“Struetural”及其下的“Mass”，在右边选择

5、“3Dmass21”如图所示。图3单元定义对话框A刖汩MjIMvciLHBtMhufiMU)ANISYSmmIlls匪iMtLIEELflstPie旦创厠国剧色1Jj田图4单元设置对话框libra*s*DhthfIThpnHT1KHH.-9RPodtproQRfMToclOPresHesi-£n田artinnOptSUmnliHiEdhioiFinLoh3. 定义实常数GUI：MainMenuPreprocessorRealConstantAdd/Edit/Delete。弹出RealConstant对话框，单击Add按钮，弹出ElementTypeforRealConstant对话框

6、，选择“Type1C0MBIN14”单击ok,弹出对话框，设置单元实常数为1,按ok按钮关闭对话框。单击RealConstants对话框的Add按钮，弹出ElementTypeforRealConstant对话框，选择列表中的“Type2MASS21”单击ok按钮，弹出如图对话框，设置单元实常数为2。单击ok按钮，然后关闭对话框。图5定义单元实常数1对话框AAIMLYE-'ultiph-.'iiEiLRiit,-7-«nuIimILI.)DieSelectLisi:ELotPlotQtrlabtrfiPantPvar亡t亡lp*10HeuUCtrlaHRp13Pt电b

7、MSkgnSEftdl&tL«1。审1QS»shonEdittarbrinishRulConilnliANSYSRl&.ONCW3?201612:31:49In$一直l-£!?-l-gIg-l-g厘Ia-口一三煌-煌-竝-环17一IJL堡空I»坯-空空图6定义单元实常数2对话框4. 创建有限元模型1）创建节点GUI:MainMenuPreprocessorModelingCreateNodesInActiveCS弹出对话框，在NODENodenumber中输入1.在X，Y，ZLocationinactiveCS中依次输入0，0，0；单击o

8、k按钮。按照上述方法，依次生成节点4（1，0，0）。Li$tFlatPie塩irh帥rkPlsuaPac-arrtersl&-rnInjiDtrlEHirlpsJh|sj*_ta|畫旦IP匕XT:RESOLDoonjpcmsw社IIknu|N,IC«ata«mw上Et»nr匚NGCKMe*-efqrtncwS识he此EEMnRType羁匕alCtinscwtsIqtcri-BPYODff甌亡tiicm19UnJhIing曰Cr«taE）EcirpoiEilatM-Lideif田Ar亡de；EVpJwws曰加de护OnKoypobnitPFILIb

9、rLvccitSkE?<ilw*dratl-cFillQhotbitFkdeCSaHrileftxkrile阳和HodeFileElFlkBContACRPlr田Ciran.1Rucetr-HckGoll田TrOJEa-duUEEfSthwrafeluve/l«dl±ySCoevSR>flftct田-TKc-ckC<-a»eWietieSeeLektmlierilpletfitsrimiwrr.TWL.THfxHDUIDIra«J*J«JflJaJaJeJfiJAJQJ型AJfl*JJ創型型型團图7节点4的创建2）插入新节点G

10、UI:MainMenuPreprocessorModelingCreateNodesFillbetweenNds,弹出对话框，在输入栏输入“1,4”单击ok按钮弹出一个对话框，如图设置，单击ok按钮。Lie.e1«1LiEEl-BkFEr|.£trLiFuicten|a-=rc!IcffJZ-trlji出】口MbarAKEJXyEtXKTR3WKRETFMBiHUadKHiiiii>#fi7mc<hvIHLLIN«Jh2hocjrt3RcaLCunilarild日/tuhiLPropshSectiocFIoILe田恤luxtaEBuJehJIOnUnr

11、hinBPISLn*GtiAzurM-fttweCr誑Oiluywi.it卫川.!JUliiRdjrsticFLUBlRowtieHa-ieCSSiriieffn*-rbleSKcadHudeFlic田El-ramnlkCoir«c1PaireClrKiJtflHqceRrakCtrilE1Tx-ixnx:du<EE,D日OtMTBifln的<7lodifMsew日RcF|i«4SCfee-cfrnIk-Ltv«S由时ii赴n茸旨Udi日£li£kiutxleficeinME-ISkk.dialapiViiikiac|lrkjdkM

12、|ttfarurilANSVSpot2?2014图8在节点1与4插入节点对话框3）创建单元GUI:MainMenuPreprocessorModelingCreateElementsAutoNumberedThruNode弹出拾取对话框，在屏幕上拾取1,2两个节点，单击Apply,同理拾取2,3节点，3,4节点，单击ok按钮。ELle*3rt«iUp:ElotPLnrCrTlstrtPL-rwPirwiereUweSfaXtrLB商鱼u型亘kjJl国J捌函両TiMLIjftT1沁jHEtaMjadounlim勒酣ANSYSRi.aNOTZT2<I1B-13l5T|45CfhhR

13、«KH|fpnin<A：LiFW5VuliUft£：lodesHftULfi,戸IfflT啊整OSFcJohEld4SaffaAiNc>d«BSurf/CurKtE3j>DllBg|<dBPr±iE：i&iuiBlTonideIFkiirE£'3rcui*ESKhkrIrjicfeCalLEFrrciKdur«T-r7LfrBCtDKbReflwEh®okC««Talffte£trpliM-f-trnLd3diJSJfflJ剧图9直线生成4）设置单元格属性

14、GUI：MainMenuPreprocessorModelingCreateElementsElemAttribute弹出对话框，在对话框中选择“2MASS21”，在“Realconstantsetnumber”选择2,其他默认，单击ok按钮。tListElatPlotCtrLs血"PIhmPitsieursNtflu?TTLflMJ6QUt|KW3KFHS64F1Typecnst-nntssiPr«rp-siits血nwinlBHDEE-3科EXrrwnlAHribulnObItivjHrbulnrnr«kmanlifTVPEIE2mert切叭niFrfeer&

15、#187;zv27Mi乐12.157-13dllDHmfeLTK-d5TliruNtxdes3AtCokiMidKdSOffBtvFades:urf/Cwilwtipticl-dctenritwiNuBb«vf-d'riteBieg.Plile>-adE1«hFil.e>:upcrclvMnt5stflctP-nir?cuii:Col1讥fldkjuerwi5t«i/ledifyrSECNLWISeri顽ntrnberNcrwpydoJniwCmcriFd口rwidtliTrdDREALRmIcofiiJkirAivtnunbarIE£

16、;Y£|EJ«m«rAeDardniAflrfiiicSector图10单元属性对话框设置5）创建质量单元GUI:MainMenuPreprocessorModelingCreateElementsAutonumberedThruNodes。弹出对话框，分别拾取点2,单击Apply,拾取3点，单击ok按钮,单击工具栏的SAVE-DB按钮。5. 加载求解（1）.GUI：MainMenuSolutionAnalysisTypeNewAnalysis在弹出对话框中选取“Harmonic”，单击ok按钮。（2）.GUI：MainMenuSolutionAnalysisTy

17、peAnalysisOptions弹出对话框，按下图进行设置。接着弹出对话框，单击0K按钮接受默认选项。图11谐响应分析对话框设置1NODE-3ANSYSR1S.Dwav27201LGTDlerance-ie-K6匚ancal-Tidfor-all?*cwptSpaeSoIve<PETRESIncIpraktraHii萌Ai芦ullHarrncnicAnalysis严；口eforFulHarmonicEQSLVE口ua-Dansalve-r图12完全谐响应分析对话框设置3）.设置输出选项GUI:MainMenuSolutionLoadStepOptsOuputCtrlsSoluPrint

18、out弹出对话框，选中“Lastsubstep”单击ok按钮。如下图。'I2*1NonaLag!'rj-iRcn：1.1stpintPlotCtrlBUorkPLsaaPar-mtcrEKarraIwuLiCtrlE：Help.DE-IQITITPCHKRPhIEtisubsu-pEv申Nih5ubftplU5«闯和req诫甘sp-aceddtalLiirKBlTjn«血Oft5:tri刃SiufriMk5ull*sfil«statusrationFl5Ctrl皀旳匚nPiusptiwa弓PilemeritCIS)rackinB-zni.口朗IdS

19、ei咋CU?CticLQ03Iprm:stjsrc/VPrrtoiJ!匚口nlrak/UTflftLilianPri冷口读CcnlruhbcmEtm丽rfirintwrtRAEQPrint冷！squencyCrumvCc«rparHnlnam-barwhkh口koupgkijakcob4jppikdis46MCfl?2?2D1图13求解输出控制对话框设置4) .设置时间子步选择GUI:MainMenuSolutionLoadStepOptsTime/FrequenceFreqandSubsteps。弹出对话框，按照下图填写:tList巴otFLal£trEMarkPaneF

20、aranet已fjIktqEiuJClrlsBeLp5D划旳'刨"bCES-5BMT1tiEType-Losids;flepOptButClrlc.tlooCtrlNDDE3HOV27ZOLE-13lMl34irpintlin&arXlsioaPu2IOcHixu;.LSFilociLSFill-MEwnt(CIS):sTracking.RfuninfHeldScl加ConnectionSt1-C5P口stproetPofflproTlEllXI3Editor图14时间子步选项设置5) .施加边界条件GUI:MainMenuSolutionDefineLoadsApp

21、lyStructuralDisplacementOnNode。弹出拾取对话框，单击pickAll选择“UY”，单击ok按钮，关闭对话框。KKiEEdPrsferflMBJSnu-txoohMslysisTyp*曰DefLogLn吐日口Tf曰ELFUiETMIal曰DlBpIl-IKSMIltPfliLITSES护>r&Kfuiih尹(»nUpjiroinss尸it诫加尹Eh%ModeC-Mp-ancntj*hSjiHwLryB-.C.IdAniknyMD-.C.SFurc</1lnP4nfthPrc44ur&QTe印猷laliu£-SJrwrli

22、aQPie-tErt<iSecta*Cur>FleuieStroifitfiOtherEJFIitldLhjrface£&RrE>Facld7-c-l-uacIntr3JliiiliaiLGondit1-nELiiadVecicr田FiinftlaciKDMciiE*日D|KJ/aIeELowlStepOtMs仄PhytlzBSEIKiniEKnt(CISSKEtmMyTrchiEiE田Solve田m订RcximLnEmlulti-Aoldl%tDj?EhJJA15CDruiectitmRL5.0片年Is才UflOTkNoakT-|D|冲由旧JU.RCIih

23、3CsDhi*nhrrry*rfTirwdWiLLtBealparttF-anpVAUJCJ:17円pari金dipxic>56H-IIJIIJILgelra-llfill-gIIJQ-IIJ11a-lliIL-gIIBIIJllg-£-护图15所有节点上施加X方向的约束6) .GUI:MainMenuSolutionDefineLoadsApplyStructuralDisplacementOnNode。弹出对话框拾取节点1，4，单击ok按钮，按下图设置。图16在节点1，4上施加X方向的约束7）施加载荷GUI:MainMenuSolutionDefineLoadsApplyS

24、tructuralDisplacementOnNode。弹出拾取对话框，在输入栏输入2,单击ok按钮，弹出图形，安下图进行设置。图17在节点2上设置集中载荷（8）谐响应分析求解。GUI:MainMenuSolutionSolveCurrentLS求解结束弹出Solutionisdone，关闭对话框。AFinnSnLiiyi:IsmUMTHFS.AXNEK比拐曲起scLAJoAtllLi曰SolutionEInnyn*Li!Typ-cuDefineLdJh-田LadStepUp-tiHiBSKHrtn&tnwnrEl-culTrackici凹為BFrn-L5Fil«:QdlAf

25、riLveI«iiEKnnul.Hex口恬1.灯|；mHultl-Hald孙田j'liAISCtmneccicEDiaRi»FlicBSGeotrrtlPfrfliprocSTlmzHantF-a=s1m（WlTno-13Ft<*DesLtp3Rarifl-limOdIiKi.vsi?nrer,riFTWJ.图186. 观察时间历程几处理结果1)GUI:MainMenuSolutionAnalysisTypeNewAnalysis在弹出对话框中选取“Harmonic”单击ok按钮。（2）定义时域变量GUI:MainMenuTimeHistPostproDefi

26、neVariables在弹出的对话框中单击Add按钮，按照下图配置。，设置2和3节点的时间历程后处理变量。定义完毕后，单击close按钮。图19添加时间历程后处理变量Cunwrrfc?finedSpK3tiicKlianr!Eie-SeLfle-tLib£LaiPLorCiir"Hcn+PLjffQFacwtfr?LmtoU&Irplpl空列Tia111口smolEaQmeBQaKOHU粘rllsmEIoj曰EImfllHIl冋宜型型型QJJ型创團型到型MFLLJLIJ到型型型到遊1ilT朋I,1-JtDeflwdUmf-MrtovivW«Currantl

27、yOifLidSpeclflic-atLons-FJodvrunb*r»TAH丄LjJLjJ-CHT1【垃HVHH3VJ£M:_1LjJ；畔rJliphkiUHibyWrwhiflli町SelectListEWtPlot£trlsHarkPLanePainttersac/ciN史uiQli；Help_gl创刨空IJdlHarHRESULEi巳|QinijFU啲5PH|A口!叭常TtTw-H-PK-ryV&dabl«Dumen.ilyIlefLncdIEatIon愉*ATWz3-图20定义节点2的时间历程后处理变量Mil'phixiJliN

28、IMifudvlLLlsgelut|4車£JotPlatrLsSMoFiPlar*Paxuetera1*zfdHtQiCrrlgHeLpINSOLOcSrcNaclMFvridtfcIkfnumbe*-ir1ible-图21定义节点3的时间历程后处理变量jprotflEsorIqjIimleralFo岳伽xnetlijlPoslprxr*riableViewerLeadLSDYNADaiaoistVari-ablE?J.atSxtiemc-s:raphVsriab-1«ErathOperai1miU-BbleOp«raticinoothDnlin:enrrateS

29、pet图22定义时间历程变量对话框/GraphTine-HistoryVariablesEl匚ID2n-NPI.VARGraphTime-HistoryVariablesNVAR.11stvariabletographNVAR.22ndvariableNVAK33rdvariableCONJe'ka+ibLNLOGNVAR.44thvariableNVRSSthvariableNVAR.66thvariableNVAR.77thvariableNVAFIB8thvaridbleNVAK59thvariableNVAR1010thvariableOKICancelS33QRr扎TAN12

30、3一nrriinAGDERIVREALJ-ENTER图23时间历程变量图形显示设置（3）绘制变量图GUI:MainMenuTimeHistPostproGraphVariables弹出对话框，按图示进行设置，单击ok按钮，显示位移-频率响应曲线。：-：:：:二三-：；：<.：?：L.l；_；Jl'.；'；:：:扎.：=：-:-：.：；5LzJQ_Ad10.KdlsjN训Lit：.1,il：7F麻冏.IsinHehuLi.JS.OCtf«6AHPLimeKtr-7272：ite13sfl31P就時SPferancESEPiepmctsSelurtion0Gener

31、aPnstpcncbTJkEsihstpEUSTmablcVie«rSettingsSStocEDnifi目【<efl耐価I命Iee曲紀kJLSUIM»itnSLislVaridbLn3LijtEi1r«5 lithiOpfr-irtitMiF T»I>1eOperations3£«nlhDauSCetHtaiaSResetPoflp-m0S£1TnaiSFrohDesseciQKs-liatioDQt目阳曲rmEditor日Finish图24位移-频率响应曲线7. 保存结果GUI:【UtilityMenu】/【

32、File】/【SaveasJobname.db】。命令流/BATCH12:35:0211/27/2016/COM,ANSYSRELEASE15.0UP20131014/TITLE,xie666/PREP7!*ET,1,COMBIN14!*ET,2,MASS21!*R,1,300,0.1,RMORE,!*!*R,2,1,丄'，Q、丄，!*/REPLOT,RESIZEN,1,0,0,0,N,4,1,0,0,!*FILL,1,4,2,1,1,1,!*FLST,2,2,1FITEM,2,1FITEM,2,2E,P51XFLST,2,2,1FITEM,2,2FITEM,2,3E,P51XFLST

33、,2,2,1FITEM,2,3FITEM,2,4SAVETYPE,MAT,REAL,ESYS,E,P51X220SECNUM,TSHAP,LINE!*E,2E,3SAVEFINISH/SOL!*ANTYPE,3!*!*HROPT,FULLHROUT,OFFLUMPM,0!*EQSLV,1e-008,PSTRES,0!*!*OUTPR,BASIC,LAST,HARFRQ,0,9,NSUBST,KBC,1!*FLST,2,4,1,ORDE,2FITEM,2,1FITEM,2,-4!*/GOD,P51X,UY,FLST,2,2,1,ORDE,2FITEM,2,1FITEM,2,4!*/GOD,P51X,UX,FLST,2,1,1,ORDE,1FITEM,2,2!*/GOF,P51X,FX,300,/STATUS,SOLUSOLVERESUME,'xie111','dbb','