简介:Anewapproachtoreducingtheseismicresponseofspatialstructureswithmagneto-rheological(MR)dampersispresentedinthispaper.TheGeneticAlgorithmwithsmallpopulations(μGA)isusedtooptimizethecontrolfortheMRdamperstoreducestructuralvibration,whichisdifficulttoachieveusingclassicaloptimalcontrol.TheadvantagesofμGAaretheuseofglobalpropertiesandthatfewerconditionsarerequiredtoobtaintheoptimalfunction.Numericalresultsdemonstratetheeffectivenessoftheproposedmethodinreducingtheseismicresponseofstructures.