Title :
Characterization of novel flextensional transducers designed by using topology optimization method
Author :
Nader, Gilder ; Silva, Emilio C N ; Adamowski, Julio C.
Author_Institution :
Escola Politecnica, Sao Paulo Univ., Brazil
Abstract :
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
Keywords :
finite element analysis; flexible structures; light interferometry; piezoceramics; piezoelectric transducers; topology; ultrasonic transducers; finite element method; flexible structure; flextensional transducers; impedance analyzer; laser interferometry technique; piezoceramic displacement; resonance frequencies; topology optimization method; Design optimization; Displacement measurement; Flexible structures; Frequency measurement; Impedance; Piezoelectric materials; Resonance; Resonant frequency; Topology; Transducers;
Conference_Titel :
Ultrasonics Symposium, 2001 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7177-1
DOI :
10.1109/ULTSYM.2001.991884
