Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

On the Massive Antenna Suspension System in the Brazilian Gravitational Wave Detector SCHENBERG

Full text
Author(s):
Bortoli, Fabio da Silva [1] ; Frajuca, Carlos [1] ; de Sousa, Sergio Turano [2] ; de Waard, Arlette [3] ; Magalhaes, Nadja Simao [4] ; de Aguiar, Odylio Denys [5]
Total Authors: 6
Affiliation:
[1] Sao Paulo Fed Inst, Dept Mecan, Sao Paulo, SP - Brazil
[2] Univ Cruzeiro Sul, FATEC Prof Miguel Reale, Sao Paulo, SP - Brazil
[3] Leiden Univ, Leiden - Netherlands
[4] Univ Fed Sao Paulo, Diadema, SP - Brazil
[5] Natl Inst Space Res, Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Brazilian Journal of Physics; v. 46, n. 3, p. 308-315, JUN 2016.
Web of Science Citations: 2
Abstract

SCHENBERG is a resonant-mass gravitational wave detector built in Brazil. Its spherical antenna, weighting 1.15 t, is connected to the outside world by a suspension system whose main function is to attenuate the external seismic noise. In this work, we report how the system was modeled using finite elements method. The model was validated on experimental data. The simulation showed that the attenuation obtained is of the order of 260 dB, which is sufficient for decreasing the seismic noise below the level of the thermal noise of the detector operating at 50 mK. (AU)

FAPESP's process: 10/00167-4 - Optimization of mechanical impedance matchers for parametric transducers in gravitational wave spherical detectors
Grantee:Carlos Frajuca
Support type: Regular Research Grants