A novel unidimensional model of 1-3 piezocomposite ultrasonic transducers is presented. A new electromechanical model is the generalization of the Smith-Auld unidimentional model, which is formulated in terms of a variational approach. It takes into account the lateral motions of the piezoelectric pillars and polymer, which are supposed to be proportional to the strain in the axial direction. A new set of equivalent elastic, electrical and electromechanical constants of 1-3 piezocomposite is derived. Lamb modes of the 1-3 piezocomposites are investigated in term of the Certon-Patat membrane model by means of direct variational method application. A new design of a 1-3 piezocomposite side scan SONAR array is considered. An implementation of the array is proposed with generation of acoustic beam patterns at three different frequencies: 80 kHz, 300 kHz and 510 kHz
Reference:
Shatalov, MY, Fedotov, I, Wallis, JR and Nicolaides, KE. 2006. Analysis of a new unidimensional model and lateral vibrations of 1-3 piezocomposite side scan sonar array. 5th South African Conference on Computational and Applied Mechanics: SACAM 06, Cape Town, 16-18 January, pp 7.
Shatalov, M., Fedotov, I., Wallis, J., & Nicolaides, K. (2006). Analysis of a new unidimensional model and lateral vibrations of 1-3 piezocomposite side scan sonar array. SACAM 2006. http://hdl.handle.net/10204/3203
Shatalov, MY, I Fedotov, JR Wallis, and KE Nicolaides. "Analysis of a new unidimensional model and lateral vibrations of 1-3 piezocomposite side scan sonar array." (2006): http://hdl.handle.net/10204/3203
Shatalov M, Fedotov I, Wallis J, Nicolaides K, Analysis of a new unidimensional model and lateral vibrations of 1-3 piezocomposite side scan sonar array; SACAM 2006; 2006. http://hdl.handle.net/10204/3203 .
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