Modelling Piezoelectric Devices - Seguridad Mania.com - España y América Latina

In this webinar, learn about a multiphysics approach for modelling piezoelectric devices with couplings between electrostatics, acoustics and structural mechanics. Incorporating such models within the design process enables a better understanding of the interactions between structural materials, piezoelectric ceramics and fluid damping, which can reduce development time and prototyping costs. Piezoelectric transducers can be used, for example, in ultrasonic cleaning, sonochemistry and cell disruption or homogenisation. For such applications it is important to accurately design the ultrasonic horns (or sonotrodes) to increase the amplitude of piezoelectric vibrations and transfer energy to liquids through the production and disintegration of microscopic bubbles. In this presentation, Paul Wilson from Queen's University Belfast will discuss how to design such a horn to maximise power transfer to a liquid. An existing transducer will be modelled and the tuning of material parameters to match experimental results will be discussed. Parametric sweeps are then used to investigate the design space of the horn and predict the electrical and mechanical properties of the model. These results can then inform experimental procedure, where the simulated response shows strong agreement with laboratory measurements. The webinar will include a live demonstration in the COMSOL Multiphysics® software and conclude with a Q&A session.