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Characterization of novel flextensional transducers designed by using topology optimization method

Flextensional transducers consist of a piezoceramic connected to a flexible structure that amplifies and changes the direction of generated piezoceramic displacement. In this work experimental and simulated measurement of displacements and resonance frequencies of the flextensional transducers designed by using topology optimization are compared. Experimental resonance frequencies of each flextensional transducer and experimental displacements are obtained by using an impedance analyzer and laser interferometry technique, respectively. Simulations by using finite element method are done to determine theoretical displacements and resonance frequencies. Experimental results are compared with simulated results showing a good agreement. These results validate the flextensional actuators designed by using topology optimization.