- Tytuł:
- Experimental Observation Of Nonlinear Vibrations Using A Closed-Loop Vibration System
- Autorzy:
-
de Barros, E.
d’Andrade Souto, C.
Mathias, M. H. - Powiązania:
- https://bibliotekanauki.pl/articles/220744.pdf
- Data publikacji:
- 2015
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
nonlinear vibrations
closed-loop vibration system
nonlinear structural dynamics
cantilever beam - Opis:
- This paper presents experimental observation of nonlinear vibrations in the response of a flexible cantilever beam to transverse harmonic base excitations around its flexural mode frequencies. In the experimental setup, instead of manual control of the signal excitation frequency and amplitude, a closed-loop vibration system is used to keep the excitation amplitude constant during the frequency sweep and to increase confidence in the experimental results. The experimental results show the presence of the third mode in the response when varying the excitation frequency around the fourth mode. The frequency-response curves, response spectrum and Poincaré plots were used for characterization of nonlinear dynamic behaviour of the beam.
- Źródło:
-
Metrology and Measurement Systems; 2015, 22, 4; 559-564
0860-8229 - Pojawia się w:
- Metrology and Measurement Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł