Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Investigation of resonant shunt circuit connected piezoelectric path for low-frequency tuning
Submission Author:
Braion Moura , GO
Co-Authors:
Braion Moura, Daniely Amorim das Neves, Edgar Jhonny Amaya Simeon, Marcela Rodrigues
Presenter: Braion Moura
doi://10.26678/ABCM.COBEM2023.COB2023-1713
Abstract
This article addresses an electromechanical investigation of a piezoelectric path subject to vibrations that is connected in series to a resistive-inductive type shunt circuit. The main idea of this investigation is to predict the ideal values of the electronic components so that the shunt circuit is tuned to a low frequency, approximately below 20 Hz. In this sense, it is necessary to use a synthetic inductance to guarantee non-interference in the electromagnetic radiation field of nearby components and also avoid using coils with large volumes. Furthermore, the development of a configuration of a piezoelectric path connected to a resonant shunt circuit tuned at low frequency with almost zero tuning error margins is a tool with enormous potential to promote passive vibration control in various applications. Therefore, this work explores an electrical simulation based on the characterization of a real signal from piezoelectric paths to compare three circuits that generate a synthetic inductance, they are: Antoniou; Riodan; and Gyrator. For this, four combinations of resistive component values are created to try to elucidate whether the high resistance value implies any improvement in tuning. Finally, the tuning variation suffered by the tolerance of the components that form all shunt circuits analyzed is also analyzed.
Keywords
Vibration contro, Passive shunt circuit, Synthetic inductance
