6533b835fe1ef96bd129f358

RESEARCH PRODUCT

Viscoelastic bearings with fractional constitutive law for fractional tuned mass dampers

Giorgio BaroneM. Di PaolaF. Lo IaconoGiacomo Navarra

subject

EngineeringBearing (mechanical)Acoustics and Ultrasonicsbusiness.industryMechanical EngineeringConstitutive equationWhite noiseStructural engineeringCondensed Matter PhysicsViscoelasticitylaw.inventionMechanics of MaterialslawTuned mass damperbusinessOptimal tuning

description

Abstract The paper aims at studying the effects of the inherent fractional constitutive law of viscoelastic bearings used as devices for tuned mass dampers. First, the proper constitutive law of the viscoelastic supports is determined by the local constitutive law. Then, the characteristic force–displacement relationship at the top of the bearing is found. Taking advantage of the whole bearing constitutive laws, the tuning of the mass damper is proposed by defining the damped fractional frequency, which is analogous to the classical damped frequency. The effectiveness of the optimal tuning procedure is validated by a numerical application on a system subjected to a Gaussian white noise.

yearjournalcountryeditionlanguage
2015-05-01Journal of Sound and Vibration
https://doi.org/10.1016/j.jsv.2015.01.017