Industrial processing assisted by high-power ultrasound has become an attractive field for industries due to its sustainability (low energy consumption, non-pollutant processes). In order to obtain the desired effects, the high power ultrasonic transducers have to work properly, vibrating at the desired frequency and achieving high values of displacement with a minimum mechanical stress in its different parts (Langevin type vibrator, mechanical amplifier or horn, and plate radiator).
The horn is the part of the transducer where the highest displacement amplification takes part, and also the place where the highest mechanical stresses occur, mainly in the connection point with the plate radiator and in the junction of the two different sections.
The objective of this work is to show the behaviour, obtained by numerical methods, of a rectangular plate transducer when different shapes of mechanical amplifiers are designed.
Acknowledgments
This work has been supported by the project DPI2012-37466-C03-01 funded by the Spanish Ministry of Economy and Competitiveness
