大型单架轧机弹性基础的防震性能优化

:2009-08-09;:2009-10-15:(1975-),,刘鹏1,赵春江2,丁小梅1(1,710032;2,030024):,,,Cauchy,,:;;;:TG33311:A:1001-196X(2009)06-0031-03OptimizationofearthquakeresistanceofelasticfoundationoflargesinglerollingmillsLIUPeng1,ZHAOChun-jiang2,DINGXiao-mei1(1ChinaNationalHeavyMachineryResenrchInstitueCo.,Ltd.,Xian710032,China;2TaiyuanUniversityofScienceandTechnology,Taiyuan030024,China)Abstract:Thedamagebyearthquakeoflargerollingmillswillnotonlycausegreateconomicloss,butalsoimpairpersonalsafety.Thedesignofrollingmillfoundationshouldreducetheearthquakewavetowardsthestand.Thispaperpresentsthemathematicalexpressionofearthquakeresistanceoftheelasticdampingelementbetweentherollingmillstandanditsconcretefoundation,andestablishestheoptimizationmodeloftheearth-quakeresistanceeffectivenessincludingsuchparametersasspringstiffness,foundationmassandoutlinesize,withtheconsiderationofthedesignrequirement.Duetothecomplexityofthemode,lthefastalgorithmofsim-ulatedannealing(SA)basedonCauchyfunctionisadoptedundertheconditionthatthetraditionalmethodfailstoobtaintheoptimumsolution.Thecalculationresultindicatesthattheshockabsorbingeffectivenessusingtheoptimizationmethodisobviouslyincreased,andtheotherparametersaremoreproper.Keywords:singlerollingmills;elasticfoundation;earthquakeresistance;optimization1,[1][2],,,,,,[3],,,,,,312009No6,2,;,,111,m1;m2;k1;k2;c1;c2;f;x1;x221,XT=[x1,x2,x3,x4]T=[k1,c1,m2,s]T(1),s22,[4]I=1-T(2),T,,,TT=|k2x2+c2x2|m1v1/,;v1,T,minw.r.t.Xf(X)=minw.r.t.X(maxT)23,:(1)G1(X)=1-|x2max|/[A2]0G2(X)=1-|x2max|/[A2]0(3),[A2];[A2](2)G3(X)=1-|x1max|/[A1]0(4),[A1](3),n,td,,G4(X)=1-ntd/600(5)(4),G5(X)=(1-1)/2[f1]0(6),[f1],1(5)G6(X)=1-(m1gk1[d])0(7),[d],[4]3,,(SA),322009No6,,,,[5]SA,Cauchy[5],g(X,K)=K[X2+K2](n+1)/2,X;X=Xk+1-Xk;K;n4,::E0=78kJ;m1=98104kg;e=025;=001s;n=60:K1=114108N/m;C1=6106N/m:A=38m2;me=125105kg:[A1]=6mm;[A2]=05mm;[A2]=03g;[f1]=45Hz;[d]=10mm,(2),(3)~(7),XT=[x1,x2,x3,x4]T=[k1,c1,m2,s]T,2323,,,,3,,30%06s,5,,,,:[1],,.-[J].,2002,19(1):7-11.[2],.LMI[J].(),2008,42(4):656-650.[3],,.H[J].,2008,29(2):118-224.[4]S.German,D.German.Tochasticrelaxation,GibbsdistributionandtheBayesianrestorationinima-ges[J].IEEETransactionsofPatternAnalysisandMachineIntelligence,1984,6(6):721-741.[5]J.S.Jang,C.T.SunandE.Mizutan,iNeuro-FuzzyandSoftComputing[M].PrenticeHal,lUpperSaddleRiver,NJ,1997.332009No6