Zhao, Guoying and Alujević, Neven and Depraetere, Bruno and Pinte, Gregory and Swevers, Jan and Sas, Paul (2014) Active structural acoustic control of rotating machinery using piezo-based rotating inertial actuators. = Active structural acoustic control of rotating machinery using piezo-based rotating inertial actuators. In: International Conference on Noise and Vibration Engineering, ISMA, 15.-17.09.2014., Leuven, Belgija.
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Active structural acoustic control of rotating machinery using piezo-based rotating inertial actuators.pdf - Published Version Jezik dokumenta:English Download (1MB) | Preview |
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 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.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| 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 > Shipbuilding TECHNICAL SCIENCE > Electrical Engineering 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: | No |
| Citations JCR: | 1 (15.12.2017.) |
| Citations SCOPUS: | 1 (15.12.2017.) |
| Date Deposited: | 21 Mar 2017 13:39 |
| Last Modified: | 15 Dec 2017 13:56 |
| URI: | http://repozitorij.fsb.hr/id/eprint/7602 |
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