4 papers · 1 filter
Resonance widening in spherical GW detectors: model descriptions of the dissipation processes
Eugenio Coccia, Viviana Fafone, Giorgio Frossati +2
Internal friction effects are responsible for line widening of the resonance frequencies in mechanical oscillators and result in damped oscillations of its eigenmodes with a decay…
Multimode gravitational wave detection: the spherical detector theory
J. Alberto Lobo
A spherical gravity wave (GW) detector, unlike interferometers and bars, is a natural multi-mode device, i.e., it is capable of independently gathering information on all five quad…
Resonant Spheres: Multifrequency Detectors of Gravitational Waves
M. Angeles Serrano, J. Alberto Lobo
We discuss the capabilities of spherical antennæas single multifrequency detectors of gravitational waves. A first order theory allows us to evaluate the coupled spectrum and the r…
Viscoelastic effects in a spherical Gravitational Wave antenna
J. A. Lobo, J. A. Ortega
Internal friction effects are responsible for line widening of the resonance frequencies in spherical gravitational wave detectors, and result in exponentially damped oscillations…