Experimental study on active structural acoustic control of rotating machinery using rotating piezo-based inertial actuators

Zhao, Guoying and Alujević, Neven and Depraetere, Bruno and Pinte, Gregory and Swevers, Jan and Sas, Paul (2015) Experimental study on active structural acoustic control of rotating machinery using rotating piezo-based inertial actuators. = Experimental study on active structural acoustic control of rotating machinery using rotating piezo-based inertial actuators. Journal of sound and vibration, 348. pp. 15-30. ISSN 0022-460X. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2015). Točan broj autora: 6.

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Experimental study on active structural acoustic control of rotating machinery using rotating piezo-based inertial actuators.pdf - Published Version Jezik dokumenta:English

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Abstract

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 radiating surfaces. A MIMO (Multi-Input−Multi-Output) form of the FxLMS control algorithm is employed to generate the appropriate actuation signals, relying on a linear interpolation scheme to approximate time varying 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 electro-dynamic shaker. The experimental results show that when the shaft spins 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.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): 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
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 600 Department of Naval Engineering and Marine Technology > 620 Chair of Marine Structures Design
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q1 (2015)
Date Deposited: 20 Mar 2017 11:51
Last Modified: 15 Dec 2017 14:23
URI: http://repozitorij.fsb.hr/id/eprint/7585

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