NONSTATIONARY RADIATION MODES OF A SYSTEM OF 2 MULTIMODE CYLINDRICAL PIEZOELECTRIC TRANSDUCERS

A system of two thin-walled multimode piezoelectric ceramic transducer s immersed in liquid acid excited by nonstationary electric signals is considered. The transition process is modeled in the framework of the theory of thin electroelastic shells and an acoustic approximation. A computational procedure is outlined that evaluates the process with t he required accuracy and with rigorous allowance for the mutual effect of reflecting surfaces. The numerical results for different spacings between the shells and different excitation regimes are presented.