Published in Journal of Industrial Engineering and Robotics, Volume 4, Number 4
Written by ȘOAGHER Ionuț-Ovidiu, CREȚU Raluca
Scientific coordinators: Daniel GHICULESCU

The paper presents existing theoretical and practical considerations regarding the transformation of longitudinal ultrasonic waves into torsional waves using helical horns, with various geometries, integrated in ultrasonic chains with usual transducers for longitudinal waves. Applications of torsional ultrasonic waves in several fields are also presented, highlighting their advantages related to surface geometry and kinematics required in assisted processes. Several variants of horns were modeled and the propagation of ultrasonic waves was simulated within them, using finite element analysis with the dedicated program, Comsol Multiphysics. The influence of the geometric elements of the horns on the amplification of the oscillations and on the own frequency was studied, in order to obtain the resonance condition necessary for the achievement of the ultrasonic chains.

[Read full article] [Citation]