材料力學梁的撓度

1、 /2009a材料力學01梁的撓度hihr耐I柞屛叩prubletn割袖忡Ihfttthf血心冋I吐祖町A7訶eachhwinihLmsEAiit.LsrthemetiiodflfsuperpttMiiuntnsoEvethefollowLtij*r0血undassumeIhyl(henciurairifildltyEtcrvacbbeamk-onnmntr06b材料力學01撓度fr.bAFflrthebeaminSmpkPrflbleiJft氐IhftiulIhe唧ofEMhdurhe的門LeuLrulcdliMukuL甘andC.670Tlw弘叩lysuppunbttimAliCtarri

2、esfhcutiiibnnlydiHEribuLcdload1冷tweeniliaupporlsandihtgigE躬収1F斛endCFind(hi訕h憶uFPtorhidlthereisdoflelidnaECFIGF*,7SPW.J9tacStilvPmb,6.3!by即pcrpmiiioii.fr-fi-1SolePtib.6.32byupuTpysiiion.fr.flZSqvuPto-b.6.33bysupcrposilion.t-S3MvePlfftb.6.34.弊口測訕】斗by利iptwii3n.6&4SoP/&b.6.38bjSiLptiptisilk?i.fr.BSSd3Fl

3、ab.6.39byyiLjKrpQEilioii.i-fiiSohProb.6.42bywuptipsiiicm.it-fl-JSolPxoJ6.J3bjsupvrpLisiliun.OtS-BSuK-elub.6.65byavprpoMan.6-.S-9SolvePtot-6l66by觀perp冊iCicmi.A.MThea卄til/wr扁mofbstiglhL討loadedbythetbnxPandUncoupkA/q.DcCenrtincWointennsofFcT*gLw旳山iliumoftheul彌憶curvefarhhfjnn沖比Tilesuppontil&isf理亡tnmovev

4、erticallytttdoesnotallowdo惜打cm.jwnTintFICLP&.9&R円*FindLtlctquiKgnofthedaticcurvfIqlthe$iimplySuppDJI&J民heihubtc日iriu制disliihutedlcacrivcLheeiLptionsMtheclaadcCUfVforllh:10wgnientsuftheover-h3LgiLgbIKLAC.6rlQ0hindthecquatioliMLh亡皿筑Rturvt(br訊帥曰偏川HiindliCdftheHLmplysufsjxirtcjbunn.6.101Clomptncv制ii匕ifE

5、fU4iSii|)pur!ItoftheuverhiingLngbesmshowninheliguit.6.102DelcnriineHiei*lueQtE諾midwM.yhetTentheuppnrtKlorth亡nw:r-huiifmgbtsm.I如IBflE2DlbFi.Pt.1026.103ThewcrhNiLginghcqmCH.rric5cinccntrjitedlouidhofEiiagnitucEcIdlbandP.(iL)DcttntiincFfurwhichthfslopenfLhe日辭ticur肌tfisasru.b；CumpuLe6.tflSTh亡tiinbcrhoam

6、oFckhaRCDtiotishawncarriestwocarwen-trdbedIon出：ciiLhtnLgniludLP.IitidihcmwMrfiumatlOhrubleMlutofPifIhenLiJspjn血即沁eiiiemith匕扁i卄islimit時toQ.5in.UseE1.513Ki.Cympuiethe辺山叱cfEMmiIkitictndothe朗卅瞇皿宙扇i山6.107ForEheninipEysupportedbeam,findLhtviilufi曲$uiLdereichtw-vniTuiDiMd.6.1OBM亡門斤iih:the-valueofEJ3HtmsdHp

7、cinofthexiin卩EysupporlcHJbeamAJMTluy黑歹i訕飾Jflu詢/iCJMX孔肚Li町陽tprIhcpmppedcjinKiLcvcrtsamclue怕Lhu押角bnli叮LnLiiihalmwninlhuiiu丁亡.ItFIG.n.27.4Aconcernrauedloadisappliedto11wwithbuilt-inendn.闔FindnilLhesupiorLjeactkCHbs;andb)dmwIhebendingnKivnenl曲紬嵋111.(Hinr.Imiymmetry.)7應Aunilctinkydiscribndleddi?appJitdwt

8、hewithbuilr-msupjxirts.(a)Fi間llthe口即門itivEianR；and(b)druwthe說口dinmomeiiEdiagram.7.9A(TLinularlo：LdkappliedmihcbeamhiLhbLiilt-inends,findalheyuj)portrviicdan!i.FIC.P7_fi710FewIhebcatiiwithhull卜inmdx：dcljcnntnt(町a(chǎn)llth亡*;up卩oilrtiqnand(b：hrdi&pldocniviitalwiJpun.7.11iindthetuppurtrfi磯Liun1JfiMc!lpwpfvd

9、timcdcvtrbcurrt.7.12Ddermira:alllhesupportrertdioiiK旳thebcurnu-ichhuiEt-itiends7.131orth?beum說thbuiE-incnJs,dtlrrntinejLItheMippurt吒出匚tion乂如訃；blthedijplaocmentthi?midpiEilC.甘血:LmcsymmeLry.)7.15EindnilchfsupportiDTiCtiuEisibrIhtbuiinshiiwninthe7.10ThebeamAEC迪$abuili-iihskippurtaiA血廚roller$upporL$al田n

10、dCFindEcsupportncanions.7.17BeforeIhe12)O-Lbload玄appliedtotheproppedcajitilcitrthKJ$a紳卩亦a03id.ThebucnuddIhtrd血c*SdppurLaLAFindulLtht!vuppuntT-C$cttoiiAafltrIzQ訂applied-cjstE=29k|0psiand/=36jtri.-1.FIG.P7.17?.lfiJhe卩mpeHL七softhe卩rappedtanLilewtrbtiiEareE=72GPaandJ=126k汕mm*.ThebuihnsupportaljSEwsalocw

11、H1limeallows,1弭円MMthehcnintonotateEhnnughI1hng5c%=(k75-whenthtEndisapplied,血shnvninthedetuiI.Dettnnjneutlthesuppoitiwuct?.JDcuiil2(XU忡2T切DeiClitliiPSsupportDeletionatA6rtheproppedCM.nijkvtrbfliin.7.Z0Ihcproppedcanlikv亡rbeamV萌ri輕ZQtanixnlniLcdichofniagnt-Uldc?.FindthesuppturTBdctinuEA.PiG.P7-7D孔3MIin

12、dthertdctiwenupkactinpphihpryfxd仙i血I劭七丁beamultf.T-2JTilt陽11AithabuLli-LTisupportatA.ThefciBLctEuppoiT劃fialleysvcrticiilJcficction伽Ipreventrolfltiflfl.De怕rwi】記dltLtiryupporlneiictians.7.13Tliebejm沖賀rtSLsun.Lhrtesupporls.DetLiniincElthesupport7-24Thelofld富口i呼的IhebeiimABChas3tnangukrditrihutinn.Find,(h

13、eHSLlionsu；E已ItLirct人口ppoMl-T/5TJbfibCdinAiChiiKihretNuppurLandearnertwoeq卿Ibu【叩pnxi花打ouPlh.DiMcrmtncll(JksiLpforlnsclion乳T-26Tllihuifl力luifinbuilt-Lnsupptirtat曲thend.Detcmiinc閤th專冋肚ti轉(zhuǎn)taupltsSjetingtin(Ikbeam皿Aand5；社nd(b)lhe旳1訛cfE咼HEHiidupn.iffirn-.Us&symmetry.)FIGPPT-2*7.27LkrennintheyuppuU丁eactki

14、nsa1Afor坤bejimwithtmilt-inctidhN.m卜2m+4n+3rnHFbG.卩7和7.2BThepmpertiMofthecunLeverbcumAHniE-200AlI旳andJ=60X10mm4.Tlst如ifivj然Mth亡siphn呂supportingbndAisk=6MJkN/ni.IfhtsjpjingisinitmLIundefanned,detfircniciethe倚rinthespritigwl御the75-kNloadhAppliedic(hebtiam.:FIG-P7_IS7.29ThemidpcinLBdfLheCflfltileveFbtft

15、tn沖ECissuppcjrtisdbyavtrtkaluluiliumrid.FiMhevalkiGFtheappliedPluimFilLhuilfWSinth亡rodisnultoctwd120MPa.UseEa=200。卩a,7=50 xmm4fordwbeam.j|=CGPaL*iid丿=4flmtnforihcind.7,30Whenthecunlikverbi施m4-BCiaunloadcd.thereka.gp-ri(1.2in.be*沖hebeamandrheaupponat&.DetennirijttheSUppong旺icwiJitfiwhen1hc300-lb/ftdi

16、stribuld1mS悚appHed-UseE=剪式L臚psiand/=32i【i.ln3CHSINNFIG.PT.3G7.9ZSolwPnob.7.15bysupcrposiiion.7.33SolveProb.7.16hyMupripositiQn-7n34SolvePreb.7.18聘supfiTpcsilion.,735SnlvcFrb.7.20bysuperpuHiLion丁昶SoR*Pvob.7.22bypcrpositwri,7.37SoivrPfoh.7.2bysuprrjiLisitkin.Tl38百卅窩Prfe.7.28bysupcrpnsfetmn.7.15E-indii

17、llthsupportt旳盤冷陽forthybuiinslwiwninLhrFiutv.?.lfi!he卩mpcHL七softhe卩rappedtanLLletrbtiiEareE=72GPaandJ=126k汕mm*.Tti已buittnsupportaljSEwsalixist用Ihfullc-wsJ弭e匈MthehcnintonotateEhnnughI1hng5c%=(k75-whenthtEndisapplied,血shnvninthedetuiI.Dettnnjneutlthesuppoitiwucrt.T-2JThe陽11”Ait4LbuLli-LTisupportatA.The

18、FdBLqrxuppoiT劃RalleysvcrliciilJdfcctionbulpreveiHgrolfltiflfl.Det&nfliirtdltlHjeyupporlneiictians.ThepmpertiMofthecunMLeverbcumAHAn；E-200AlI旳andJ=60X10nihJ,Tht如flilt関M出亡Kwing盹卩portingbndisA=6MJkN/ni.IfhtspringijiniEiullyundjEfonned,deircninetheirceinthespritijiwl御the忑-kMloadh叩回恰diciheibeam.:FIG-97-1

19、87.40Whenun】曲盤ci|thftwoidcniicalnttlcvcrbeam盯deImakeconEucLaLE.DLitcninn亡ehcrestivecaupknscLinonhebtiimy鮪A汕dCwhrlLhtuqkiRirrnlydistnbuLcdIoikIi$ApfldtoHCFKi.PT.407+42Whenhe印刪1CitnUrverbstnflARundCfynremounted,thereisu2-mm尉卩bctwMii(heirroeendsAandC.LWrmincLhe也ftIWLWflnJaridChtnIlc3-NIoddisaplid.UwE-2

20、00GPaiflr$ml.7.44ThehcamABCbusfourcquull帶UsuppturlS.Find詢IIllMsUfiporlruudiunH.7.4TitaAfitab削旳叩油gsupportAthal卩revestsro-1-u.Lionbutiillo-wsverticaldkpEciiwnt.TheuupporL泉EisbuiJlin.ICenniiKh巴V聞恫Eactingonhebeam時A.747Thetaperedbeambusas：EplcTuppurttilJand由builldclSUppCdat比丁血nwmenloPinurti詞ofth耳耳丁強$ecti

21、巧hrvariesliruearLyfromectqatt血alB.FindLhesupportTctL-onAtAclu亡tribeuniformlinoIlmJofinldasil叭），7.48TheproppeduarniLev&rbeamcartes缸dislribinedLcudoftriangular瀚呂產(chǎn)FindtheSitppdfC佛汕dllftl止7.4Fflfthebcain月RQdtennin闔thebendingmomtrHS汛lhebuiLl-tUSiip-pnrtfiand；b：themaimunidkbph.*jeniC3bL.?h5-0DcrenniEicall泊卩購門leacKosififurtheproppedantilevrbeam/航FIG.P7.SQTbtAliCreslsanihrtciupporls.Find伽buKdmgmomctiLqvh11kNipponatF.丁孚2IMnvtjtianpingb&imhusLhitcsuppnrtR.Derflmiine；|JILhcsupportrchelions.FKi.P7.5J7-53