价值分析原理在真空排污系统管材选择中的应用

:2003207214.:(19752),,;,(430074).11(1.,430074):,..,,,,,,.:;;:TU922.23:A:167227037(2004)01200582021[1],,0.0350.045Mpa,,.,..,1Lö,,,30004000m..,,.,.2[2],,,.(V)(F)(C),V=FöC.3[35](1)(2)(3).3.1.,1.,f.f,,34,10.1f-3333120.2931-333100.24411-3380.195111-360.1461111150.122411.0003.21(0.9400.965göcm3)(0.9300.940göcm3)(21120043()J.ofHUST.(UrbanScienceEdition)Vol.21No.1Mar.2004©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.0.9000.930göcm3),,,.1,4,,500%,;,,,,;,50;,.2,.,,;50;,,.3,.,,,.10.10,(2)..(3).2191010782108101073861071030.2930.2440.1950.1460.12212.932.1961.951.0220.9769.0740.34922.3442.441.951.460.8549.0480.34831.7581.9521.951.0221.227.9020.30326.02413.3,,,3m,,DN50,DN75,DN5036m,DN75108m.:=++++.,4.41495924830149330488700.37529556593-2873563113980.48137222448.42162220.634110.144236791:,.3.4,34,5.,;,;,.510.3490.3750.93120.3480.4810.72330.3030.1442.104,3,3;,.,,,,.,,.,,,.4,,,,.,,,.,,;;;,,.(80)951:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.c.Den.Hartog,.,.[1]PYu,YMDesai,AHShah.Threedegrees2of2free2dommodelforgalloping,PartI:formulation[J].J.Eng.Mech.ASCE,1993,119(12):240422425.[2]ASVeletsos,GRDarbre.Dynamicstiffnessofparaboliccables[J].Int.J.Earthqu.EngngStruct.Dyn,1983,11:3672401.[3],.[J].,2001,(1):42244.[4],.[J].,1993,15(13):26231.[5]YMDesai,PYu,NPopplewell,etal.Finiteele2mentmodelingoftransmissionlinegalloping[J].Computers&Structures,1995,57(3):4072420.FiniteElementAnalysisforGallopingProcessofTransmissionLinesWANGLi2xin1YANGWen2bing1YANGXin2hua1YUANJun2jie1(1.SchoolofCivilEng.&Mechanics,HUST,Wuhan430074,China)Abstract:Afiniteelementmethodtoanalyzegallopingprocessesoficedtransmissionlinesispresent2ed.Inthismethod,theicedpowerlinesaremodeledbythebeamelement,andstaticanddynamicanal2ysesareconductedbytheiterationmethodwithmovingcoordinatesandNewmarkmethod.Acomput2erprogrambasedonthemethodismadetoanalyzethegallopingoftransmissionlines.Anumericalex2ample,inwhichthegallopingprocessisanalyzedandtheeffectsofwindspeedsandattackinganglesarealsodiscussed,isthengiven.Thecomputationalresultsagreewellwiththeexistingresults,whichshowsthatthepropostdmethodinthisprogramisreasonableandhassomehelptoanalyseandpreventgalloping.Keywords:galloping;beam2element;finite2elementmethod;non2linear(59)[1],.[J].,1999,11:55257.[2],.[M].:,1998.[3].[J].(),2000,(4):61263.[4],,.[J].,2002,(10):71273.[5],.[M].:,2000.ApplicationofValueAnalysisPrincipleinSelectingPipeMaterialsofVacuumSewerageSystemJINLing1ZHOUJing2xuan1(1.SchoolofEnvir.Sci.&Eng.,HUST,Wuhan430074,China)Abstract:Thevacuumseweragesystemchangesthetraditionaldrainagesystem,itcancollectsewer2agebythevacuumsuction.Itisakeylinktoselectpipematerialsreasonablyforsewerengineering,thisselectionisveryusefultosavetheengineeringinvestmentandkeeptheoperationinsafety.Ac2cordingtothecharactersofvacuumseweragesystemandusingvalueanalysismethod,thedetermina2tionofweightsandthepointratingforeachfunctiontermareillustratedbythreekindsofpipes.Thequestionsthatshouldbepaidattentiontoareputforward.Keywords:vacuumsewerage;tubularproduct;valueanalyze08()2004©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.