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Publication . Conference object . 2011
Noise Reduction in Double‿Panel Structures by Cavity and Panel Resonance Control
Ho, J.; Berkhoff, Arthur P.;
Ho, J.; Berkhoff, Arthur P.;
Open Access
Published: 10 Jul 2011
Country: Netherlands
Abstract
This paper presents an investigation of the cavity and the panel resonance control in a double‿panel structure. The double‿panel structure, which consists of two panels with air in the gap, is widely adopted in many applications such as aerospace due to its light weight and effective transmission‿loss at high frequency. However, the resonance of the cavity and the poor transmission‿loss at low frequency limit its noise control performance. Applying active control forces on the panels or utilizing loudspeakers in the cavity to reduce the noise prob-lem have been discussed in many papers. In this paper, the resonance of the cavity and the panels are considered simultaneously to increase the noise transmission‿loss. A structur-al‿acoustic coupled model is developed to investigate the vibration of the two panels, the acoustic resonance in the air cavity, and the control performance. The control design can be optimized through the model. Finally, the results will be presented and discussed.
Subjects
IR-78593, EWI-20865
IR-78593, EWI-20865
Related Organizations
- University of Twente Netherlands
- Max Planck University of Twente Center for Complex Fluid Dynamics Netherlands
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- University of Twente Netherlands
- Max Planck University of Twente Center for Complex Fluid Dynamics Netherlands