Aplicación del método de elementos finitos al estudio y Diseño de transductores ultrasónicos de placa vibrante

In recent years, the application of numerical methods in engineering and in particular in the design of piezoelectric transducers, has supplied a tool with great potential for optimization and development of new high intensity ultrasonic transmitters for industrial applications. These issuers have a complex structure combining extensional to flexural vibrations. Basically radiators consist of extensive surface and phased-ribbed profile, excited at its center by a piezoelectric vibrator compound. These systems are designed for radiation transduction in fluids with high efficiency (¿) and high quality factor (Q), which implies a very precise tuning of its components. This high tuning can be achieved with finite element modeling where such modeling was carried out with a precise and proven methodology. This paper describes the methodology to be applied in the power transducer design specially developed for applications in fluids and multiphase (mainly gas), as in breaking and removing foam, acoustic agglomeration of aerosol spray of fluid, dehydrated vegetables, washing and other textiles that are being tested.