The analysis of a smart Jeffcott rotor with direct velocity feedback control in the supercritical range
PBN-AR
Instytucja
Wydział Inżynierii Mechanicznej i Robotyki (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Journal of Low Frequency Noise Vibration and Active Control
ISSN
0263-0923
EISSN
2048-4046
Wydawca
Multi-Science Publishing Co. Ltd.
DOI
Rok publikacji
2013
Numer zeszytu
3
Strony od-do
205--215
Numer tomu
32
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.78
Autorzy
(liczba autorów: 2)
Słowa kluczowe
EN
rotor dynamics
finite element method
shaft vibrations
piezoelectric sensors and actuators
active damping
Streszczenia
Język
EN
Treść
The paper discusses the analysis of the active control of a Jeffcott rotor with the rotational speed in the supercritical range. By the application of collocated sensors and actuators and a suitable control algorithm it has been possible to influence the internal damping of the rotor, which is the origin of self-induced vibrations. By this approach it is possible to increase the range of the stable operation of the rotor. In the paper, a classical analytical two-degree-of-freedom Jeffcott rotor model has been extended to account for the presence of piezoelectric patch sensors and actuators. The applicability of this model has been positively verified through the comparison with the finite element results derived using the Ansys software. Plots have been obtained by both the analytical approach and the finite element method that demonstrate the applicability of velocity feedback to increasing the threshold of instability of the rotor.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:079790