Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Vibration control using multiple piezoelectric absorbers
Submission Author:
Jorge A. B. Gripp , SP
Co-Authors:
Domingos Rade, Jorge A. B. Gripp
Presenter: Jorge A. B. Gripp
doi://10.26678/ABCM.COBEM2017.COB17-1513
Abstract
This paper discusses the modelling of piezoelectric absorbers using multiple transducers. In this technique, known as piezoelectric shunt damping, each piezoelectric transducer converts mechanical vibration energy into electrical energy, which is dissipated in an electrical circuit. Typically, a resonant circuit formed by a resistance and an inductance is used for that. Besides the circuit design, the geometry and location of the piezoelectric transducer is a fundamental factor of the piezoelectric absorber design. The location and shape of the piezoelectric transducers can contribute to improve or cancel the electrical charges produced during the transducer deflection. Therefore, the model of the piezoelectric absorbers is derived in this paper.
Keywords
Piezoelectric materials, Piezoelectric shunts, Vibration control, smart materials, Finite Element Method, damping
