风速时程数值模拟研究(重要)

:1008-3723(2006)01-0001-03,,(,110004):,,,,,,:;;:TK81:A0,,205002000;200;,101508,,,,,[1][2][3][4][3][5][6][7],,,,,,,,,,,,1,,10,,:2005-06-21:(1973-),,,.,,,()[8]Dav2enport,,:v(z)vb=(zzb)(1),zb,vb;z,v(z);,zb=10m,,,,-::,Davenport,Harris,,SimiuKaimalDavenport:Sv(n)=4kv210x2n(1+x2)4/3(2),Sv(n);n(Hz);x=1200nV10;V1010(m/s);k-2,8120063JOURNALOFLIAONINGINSTITUTEOFSCIENCEANDTECHNOLOGYVol.8No.1Mar.2006,,,,[3][6][7][9][10][11],,vj(t):vj(t)=jk=1Nl=1{Hjk(nl){2ncos[2nlt+jk(nl)+«kl]j=1,2,,m(3),n=(nu-nd)/N,nl=nd+(l-12)n,l=1,2,,N;nuNd;l02;N,,jk(nl)=arctan[ImHjk(nl)/ReHjk(nl)],,[3]Hjk(nl)S(n)Cholesky,S(n)=H(n)H3(n)T,H(n),H3(n)TH(n):Sij(n)={Sij(n){ei(n)=Sii(n)Sjj(n)Coh(n)ei(n)(4),Coh(n),:Coh(n)={Sij(n){/Sii(n)Sjj(n)(5),,:Coh(n)=exp(-2nC2x(xi-xj)2+C2y(yi-yj)2+C2z(zi-zj)2v(zi)+v(zj))(6),Cx,Cy,Cz,v(zi)Zi,(1)33.1A(10,8,20)B(14,10,20)C(18,12,10)D(22,14,10),10mv10=25/,k=0.015,05,500,0.25,100Cx,Cy,Cz16,8,10zi,=0.16,,MATLAB,,1:3.2,,,,,,,-1A-D:Sij(n)=-Rij()cos(2n)d(7)2,,,3.3,,,(1),1hz,,Daven2port,(0,n)(0,),1,v1010m,n,,:n0S(n)dn/0S(n)dn,,395%,282A-D1v10n12345102020m/s0.934760.958900.968630.974110.977690.985940.9911425m/s0.924300.952300.963600.969950.974110.983690.9897230m/s0.914520.946140.958900.966070.970760.981580.9884040m/s0.896460.934760.950210.958900.964580.977690.9859450m/s0.879880.924300.942220.952300.958900.974110.983695,,,,,,,,,,3hZ5hZ(2)()(),,,300,,,,,;,,,,AR,0.24,,,,Cholesky,;,,,,[1],,.[J].,2002,21(3):6-10.[2].[J].,1997,16(4):1-5.[3].[J].,1994,15(1):44-52.[4],.[J].,2005,21(1):1-4.[5],.[J].,2000,20(4):45-47.[6],.[J].,2005,35(5):81-84[7],.[J].,2004,24(1):135-140.[8].[M],:,2001.[9],,.[J].,1996,2(2):21-25.[10],.[J].,2001,31(5):50-53.[11],,.[J].,2005,(1):24-27.(6)8120063JOURNALOFLIAONINGINSTITUTEOFSCIENCEANDTECHNOLOGYVol.8No.1Mar.2006[1].[J].,1993,(3):24-32.[2],.[M].:,1984.[3].[D].:,1999.[4].[M].:,1995.[5],,.[J].,1994,(1):32-35.[6].[D].:,1993.[7].[M].:,1995.[8],.0.89[J].,2005,(2):31-37.[9].[D].:,1992.DiscussionontheConsumedRegularityofOre-massFragmentationYAOYu-xin(SchoolofTrafficandTransportationEngineering,DalianJiaotongUniversity,Dalian,116028,China)Abstract:ConsideringthegraindistributionoffragmentedoreconformswiththeG-Sdistribution,thepapercorrectstheconsumedformulasofunitenergydeductedwiththeself-analogicalprinciple,andtherelevancewiththefractiledimensionoffragmentedsur2face.Therearetherelevanceofenergyconsumeofunitorefragmentionwiththesmallestgrainoffragmentation,thecontentofthesmallestgraininfragmentedvolume,andwiththefractiledimensionoffragmentedsurface.Itconfirmsthevalidityoftheconsumedformulasofunitenergydeducedbytheorytocomparewithexperiments.Theresultmaybeusedasguidingderiction.Keywords:Fragmentation;G-Sdistribution;Energyconsume;Fractiledimension(3)ResearchintotheNumericalSimulationofWindVelocityHistoriesBAIQuan,ZHUFu-sheng,KANGYu-mei(SchoolofResourceandCivilEngineering,NortheasternUniversity,Shenyang,Liaoning,110004,China)Abstract:Alongwithengineeringstructuresbecominglargerandmorecomplex,buildingsgetmoresensitivetowindload,whichusu2allyplaystheprimaryandeventhecrucialrole.Timedomainanalysisisregardasoneofthebettermethodstoresearchthewindin2duceddynamicresponse.Samplesofwindvelocityhistoriesarenecessarywhentimedomainanalysisisconducted,soreproducingsam2plesofwindvelocityhistoriesbycomputernumericalsimulationutilizingknownfrequencydomaininformationisagoodmethodforsolvingtheproblem.Inthepaper,theharmonysuperpositionmethodisusedtosimulatethesamplesofwindvelocityhistories,andhasbeenprovedtobeavailabilitybyanexample.Inaddition,someparametersarediscussedandtheirrationalvaluesarerecommended..keywords:Windvelocityhistories;Numericalsimulation;Harmonysuperpositionmethod(8)ResearchintoBlendedControlbytheMagnetohydro-resistorandtheQuakeInsulationofBuildingStructureDENGGuang(Dept.ofResourceandArchitecture,LiaoningInstitueofScienceandTechnology,BenxiLiaoning,117022,China)Abstract:Combiningthepassivecontrolwiththesemi-activecontrol,thepaperpresentsablendedcontrolsystem.Then,ablendedcontrolpatternwiththemagnetohydro-resistorandthequakeinsulationofbuildinghasbeensuggestedalongwithanexampleofafive-storeybuilding.Asaresultitsvalidityhasbeenafirmed.Keywords:Blendedcontrol;Semi-activecontrol;Passivecontrol;Magnetohydro-resistor68