A popularmethodofmitigatingrisksfromearthquakesto structures istheuseofvibrationresistingdevices.Atunedmass damper (TMD)isoneofthesimplestandmostreliablevibration
control devicesinexistencetodayandhasbeenwidelyinstalledin
manystructuresaroundtheworld [1]. Itoperatesthroughthe
dissipation ofvibrationalenergyinducedinastructure,whichis
achieved throughthecombinedactionofinertialdissipationand
material damping