Numerical assessment of stability of the ball vibration absorber

0482320 - ÚTAM 2018 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Fischer, Cyril - Náprstek, Jiří
Numerical assessment of stability of the ball vibration absorber.
Computational Mechanics 2017 - extended abstracts. Plzeň: University of West Bohemia, 2017 - (Adámek, V.; Jonášová, A.), s. 23-24. ISBN 978-80-261-0748-4.
[Computational Mechanics 2017 /33./. Špičák (CZ), 06.11.2017-08.11.2017]
Grant CEP: GA ČR(CZ) GA15-01035S
Institucionální podpora: RVO:68378297
Klíčová slova: ball vibration absorber (BVA) * non-linear model * resonance
Obor OECD: Construction engineering, Municipal and structural engineering

The ball vibration absorber (BVA) is in principle a heavy ball rolling inside a semi-spherical cavity. It is a convenient alternative to the usual pendulum-based dampers. The dynamics of the real ball absorber is significantly more complicated in comparison to the pendulum one. However, the numerical examination of the non-linear model of the BVA indicates that its resonance behaviour is similar to the spherical pendulum. Despite the theoretical differences, the resonance curves in both cases form similar patterns. It seems that detailed study of both separate cases can provide complementary results, whose parallels appear in the other model.
Trvalý link: http://hdl.handle.net/11104/0277735