0382829 - ÚFP 2013 RIV US eng J - Článek v odborném periodiku
Nováková, Kateřina - Mokrý, P. - Václavík, Jan
Application of Piezoelectric Macro-Fiber-Composite Actuators to the Suppression of Noise Transmission Through Curved Glass Plates.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. Roč. 59, č. 9 (2012), s. 2004-2014. ISSN 0885-3010. E-ISSN 1525-8955.
[International Symposium on Applications of Ferroelectrics and 2011 International Symposium on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials, ISAF/PFM /2011./. Vancouver, 24.07.2011-27.07.2011]
Grant CEP: GA MŠMT(CZ) ED2.1.00/03.0079
Výzkumný záměr: CEZ:AV0Z20430508
Klíčová slova: Glass window * MFC piezoelectric actuator * Noise Transmission * FEM Simulation
Kód oboru RIV: BI - Akustika a kmity
Impakt faktor: 1.822, rok: 2012 ; AIS: 0.513, rok: 2012
DOI: https://doi.org/10.1109/TUFFC.2012.2420

This paper analyzes the possibility of increasing the acoustic transmission loss of sound transmitted through planar or curved glass shells using attached piezoelectric macro fiber composite (MFC) actuators shunted by active circuits with a negative capacitance. A detailed analysis of the particular arrangement of MFC actuators on the glass shell is performed using a finite element method (FEM) model. The FEM model takes into account the effect of a flexible frame that clamps the glass shell at its edges. A method is presented for the active control of the Young’s modulus and the bending stiffness coefficient of the composite sandwich structure that consists of a glass plate and the attached piezoelectric MFC actuator. The predictions of the acoustic transmission loss frequency dependencies obtained by the FEM model are compared with experimental data. The results indicate that it is possible to increase the acoustic transmission loss by 20 and 25 dB at the frequencies of the first
Trvalý link: http://hdl.handle.net/11104/0212944