V.A.Andruschenko, A.A.Bondarenko, V.V.Meleshko, V.N.Nikitenko Determining the elastic constants of square piezoceramic plates by resonant technique |
Acoustic bulletin, Vol. 9 ¹ 4, (2006) |
| The paper deals with the experimental-theoretical technique for determining the elastic constants of square piezoceramic plates based on analyzing their planar vibration spectra and distinguishing the characteristic resonant frequencies. The Poisson's ratio and Young's modulus are determined for a square plate made of a round disc and covered with solid or split surface electrodes. The problem on excitation strength of the natural forms of symmetrical vibrations is considered. It is shown that only six of thirteen possible modes are effectively excited. The obtained results are in good agreement with the experimental data. |
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KEY WORDS: piezoceramics, vibration modes of plates, Young’s modulus, Poisson’s ratio |
| TEXT LANGUAGE: Russian |