Active structural acoustic control of rotating machinery using piezo-based rotating inertial actuators. (CROSBI ID 625120)
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
Active structural acoustic control of rotating machinery using piezo-based rotating inertial actuators.
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 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
art. nr. 165-x.
2014.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of International Conference on Noise and Vibration Engineering, ISMA 2014
Sas, Paul ; De Munck, Maarten
Leuven: Katholieke Universiteit Leuven
9781634395069
Podaci o skupu
International Conference on Noise and Vibration Engineering, ISMA
predavanje
15.09.2014-17.09.2014
Leuven, Belgija