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2009 | 116 | 3 | 348-350
Article title

Choosing of Optimal Voltage Amplitude of Four Pairs Square Piezoelectric Elements for Minimization οf Acoustic Radiation of Vibrating Plate

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The study is a next part of earlier works by the authors, and explores how does the sequence of activated actuators and the level of applied voltage affect the radiated acoustic energy. The analysis uses the finite element method for structural vibrations and combination of the finite element and the intensity hybrid method to assess the level of sound radiation. The vibrating element is a steel plate with glued on actuators, supported on one edge and excited by a harmonically variable, concentrated load with a constant amplitude value.
  • Institute of Applied Mechanics, Cracow University of Technology, al. Jana Pawła II 37, 31-864 Kraków, Poland
  • Department of Mechanics and Vibroacoustics, University of Science and Technology - AGH, al. Mickiewicza 30, 30-095 Kraków, Poland
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