Abstract:

The objective of this paper is to introduce spring's structure to a piezolaminated beam for transducer application. The stacking sequence of the plies is along the thickness and the elastoelectric conversion is through the bending modes, in which some plies are compressed while the others are stretched. The piezoelectrical equations are given under the approximation for small deflection. As an application to the receivers, the leaf and spiral springs' structures are adapted to the numerical analysis. The acoustic impedance defined by the values in the mean is found much lower than that of the conventional transducers, while the sensitivities are significantly heightened.