弹簧阻尼器在塔器防振中的应用-谭蔚

4112201312CHEMICALENGINEEＲINGCHINAVol．41No．12Dec．20132013-06-051965—[e-mail][e-mail]。300072。0．02—0．1。。VA-11。。TB535A1005-9954201312-0016-04DOI10．3969/j．issn．1005-9954．2013．12．005ApplicationofspringdamperinantivibrationofcolumnsTANWeiJIAZhan-binNIEQing-deSchoolofChemicalEngineeringandTechnologyTianjinUniversityTianjin300072ChinaAbstractAspringdampersuitableforcolumnsinchemicalindustrywasdesignedbasedondynamicvibrationabsorber．ThroughthetheoryanalysisandthepracticalapplicationofturnedmassdampersTMDinconstructionindustrythemassratioofthedamperwasdeterminedfrom0．02to0．1．Anexperimentalmodelwasbuiltandthestiffnessformulaofasinglespringwasderived．Thesizeandparametersofspringinthedamperswerecalculatedbasedontheformula．AVA-11vibrationanalyzerwasusedtomeasureandrecordthedataintheexperiment．Pickingupthevibrationsignalsfromthecolumnmodelduetofreevibrationthedampingratioofthesystemwascalculatedasthereferencestandardthusinvestigatingtheinfluenceofdifferentdampersindifferentinstallationpositionsofcolumnmodeonthedampereffect．Keywordscolumnsantivibrationdamperdampingratiomassratio、、1。、。2-3。。。341。。2。。35。。137．5m1120．3%240m23．1%6。2。11．1。、“”。。1。m1k1Pjsinωjt、m2k2c2、。c2=0“”c2≠0“”。1Fig．1Principleofcoordinatequalitydamper。c2=0m1m2A1A2A1=δα2－λ2α2－λ21－λ2－α2λ2μA2=δα2α2－λ21－λ2－α2λ2}μ1αλμδα=ω1ω2λ=ωjω1μ=m1m2δ=Pjk1ω1ω2ω1=k1m槡1ω2=k2m槡2。1α=λA10。α=λω2=ωj。ω1=ω2=ωj。ωj。μ≤0．1μ=0．02。1．2。82。。2Fig．2Simplestructureofspringdamper。。。。k=Gd48ND32G。·71·kθ=Ed432ND11+E2()G3NDdE。k=∑ni=1ki4。22．1。1/45。7。JB/T4710《》3、1629mm57mm3．5mm。D=3mmd=0．2mm。。k2=m2f24．81μ()+1255。1/50—1/1051/501/401/301/201/10。1/10H1/3H1/2H。1。13。1Table1Parametersofspringdamperindifferentmassratios/kg/N·m－11/500．15571/400．19641/300．25831/200．371171/100．752193Fig．3Modelofdamperandeffectofinstallation2．2JB/T4710《》。。VA-11。xinxi+n2δn=lnxixi+n6ξ=δnδ2n+4π2n槡2633．144a4·81·20134112b1/109/103。4Fig．4Attenuationdisplacementattopofcolumn。0．01。。3．21。5。5Fig．5Dampingratioofdifferentdamperinstalledindifferentposition51/2H2．5。。2/3H1/2H3．5。9/10H36。3．3。。1/2H1/50—1/20。1/10。2/3H1/501/401/301/2021/50—1/401/30—1/202。2。9/10H1/501/2H。。41。2。39/10H1/2H。4。51/101/2H1/302/3H。6【34】·91·102108115kW/m2。533%、。5Fig．5Influenceofheatfluxofheatingsteamonheattransfer4133%。233%。333%。1．J．201162S246-51．2ＲITTIDECHSSＲIMUANGW．Correlationtopredictheat-transferperformanceofaverticalflatthermosy-phonVFTatnormaloperatingconditionsJ．Inter-nationalJournalofHeatandMassTransfer20105325/265984-5987．3PAＲAMETTHANUWATTＲITTIDECHSPATTIYAA．Acorrelationtopredictheat-transferratesofatwo-phaseclosedthermosyphonTPCTusingsilvernanofluidatnormaloperatingconditionsJ．InternationalJournalofHeatandMassTransfer20105321/224960-4965．4AMATACHAYAPSＲIMUANGW．Comparativeheattransferperformanceofaflattwo-phaseclosedthermo-syphonFTPCTandaconventionaltwo-phaseclosedthermosyphonCTPCTJ．InternationalCommuni-cationsinHeatandMassTransfer2010373293-298．5．J．2012312292-295．6．J．201229619-23．7．200910102074．5P．2010-01-27．8．J．201211183-88．9．J．2008296櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆1028-1030．【19】1/10。1．M．1991．2．、、J．20093065-8．3．J．19996330-332．4．J．20043121-24．5FISCHEＲO．Wind-excitedvibrations—Solutionbypas-sivedynamicvibrationabsorbersofdifferenttypesJ．JournalofWindEngineeringandIndustrialAerodyna-mics2007959/10/111028-1039．6．TMDJ．200019288．7．J．20051187-91．·43·20134112