A pair of piezo-based rotating inertial actuators for active structural acoustic control of rotating machinery (CROSBI ID 625154)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Zhao, Guoying, Alujević, Neven, Depraetere, Bruno, Pinte, Gregory, Swevers, Jan, Sas, Paul
engleski
A pair of piezo-based rotating inertial actuators for active structural acoustic control of rotating machinery
In this paper, two Piezo-Based Rotating Inertial Actuators (PBRIAs) are considered for the suppression of the structure-borne noise radiated from rotating machinery. As add-on devices, they can be directly mounted on a rotational shaft, in order to intervene as early as possible in the transfer path between disturbance and the noise radiators. A MIMO form of the modified FxLMS control algorithm is employed to generate the appropriate actuation signals, relying on a linear interpolation scheme to approximate the nonlinear secondary plants. The proposed active vibration control approach is tested on an experimental test bed comprising a rotating shaft mounted in a frame to which a noise-radiating plate is attached. The disturbance force is introduced by an electrodynamic shaker. The experimental results show that when the shaft rotates below 180 rpm, more than a 7 dB reduction can be achieved in terms of plate vibrations, along with a reduction in the same order of magnitude in terms of noise radiation.
Actuators; Algorithms; Architectural acoustics; Equipment testing; Machinery; MIMO systems; Rotating machinery; Vibrations (mechanical) Active structural acoustic control; Active vibration controls; Experimental testbed; Inertial actuators; Linear Interpolation; Multi input multi output; Radiating surface; Structure-borne noise
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Podaci o prilogu
145-156.
2015.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 25th International Conference on Adaptive Structures and Technologies (ICAST 2014)
Zürich: ETH Zurich
978-1-63439-808-4
Podaci o skupu
Nepoznat skup
predavanje
29.02.1904-29.02.2096