DAMPING IN LOW-FREQUENCY MECHANICAL PENDULUMS

Authors
MARCHESONI F CAGNOLI G GAMMAITONI L
Citation
F. Marchesoni et al., DAMPING IN LOW-FREQUENCY MECHANICAL PENDULUMS, Physics letters. A, 187(5-6), 1994, pp. 359-364
Citations number
21
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
187
Issue
5-6
Year of publication
1994
Pages
359 - 364
Database
ISI
SICI code
0375-9601(1994)187:5-6<359:DILMP>2.0.ZU;2-U
Abstract
A phenomenological equation of motion is proposed to account for two d istinctive features of low-frequency inverted pendulums: frequency ind ependent internal losses and instability at resonance frequencies belo w a critical threshold. The comparison with recent experimental data i s discussed in detail. A new characterization of the background loss f or a mass suspended as a pendulum by wires is also derived.