Evaluation of the Dissipated Energy in Viscoelastic or Hysteretic Seismic Isolators
Journal Title: Romanian Journal of Acoustics and Vibration - Year 2012, Vol 9, Issue 1
Abstract
This paper represents the result of experimental and theoretical researches concerning the behaviour and the performance level specific to neoprene bearings subjected to conformity assessment. The tandardized test involves only quasi-static and/or oligocyclic loading for displacements imposed from outside. This method does not accurately represent the dissipation function of the neoprene bearing under dynamic loading by inertial actions at shock and vibration generated by the road traffic, with variable parameters under aleatory regime. This paper puts into evidence the energy dissipated by the neoprene under dynamic actions by forces having constant amplitude F[sub]0[/sub]=const and F[sub]0[/sub]=m[sub]0[/sub]rω[sup]2[/sup].
Authors and Affiliations
Polidor BRATU
Keywords
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