Wide Frequency Range Noise Shield using Curved Glass Plates with Piezoelectric Macro Fiber Composite Actuators

0435328 - ÚFP 2016 RIV US eng C - Conference Paper (international conference)
Steiger, Kateřina - Mokrý, P. - Václavík, J. - Kodejška, M.
Wide Frequency Range Noise Shield using Curved Glass Plates with Piezoelectric Macro Fiber Composite Actuators.
New York: IEEE, 2014. IEEE. ISBN 978-147993860-5. In: 2014 Joint IEEE International Symposium on the Applications of Ferroelectric, International Workshop on Acoustic Transduction Materials and Devices and Workshop on Piezoresponse Force Microscopy, ISAF/IWATMD/PFM 2014. New York: IEEE, Institute of Electrical and Electronics Engineers Inc., 2014, č. článku 6923011. IEEE. ISBN 978-147993860-5.
[Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices & Workshop on Piezoresponse Force Microscopy (ISAF/IWATMD/PFM), 2014 Joint IEEE International Symposium. State College, PA (US), 12.05.2014.16.05.2014]
R&D Projects: GA MŠMT(CZ) LO1206; GA ČR GA13-10365S
Institutional support: RVO:61389021
Keywords : Acoustic variables measurement * Composite materials * Interference suppression * Piezoelectric actuators
Subject RIV: JI - Composite Materials
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6923011

In this Paper, the design of wide frequency range noise shield is presented. The noise suppression effect in the considered noise shield is achieved by increasing flexural rigidity of the planar glass plate, which is carried out by two means: first, by increasing the curvature of the plate, and, second, by attaching the macro fiber composite actuators on the plate surface and connecting them to the active shunt circuit that has a negative capacitance. Using this approach, the possibility to accomplish an increase in the value of acoustic transmission loss through the glass window by approximately 10 dB has been recently demonstrated. Unfortunately, these values have been gained only in a narrow frequency range. In this work, the fabrication of the improved noise shielding system has been carried out. Acoustic properties of the system are evaluated using acoustic transmission loss measurements. We demonstrate that using our approach, it is possible to create a system for broad
Permanent Link: http://hdl.handle.net/11104/0239186