Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
VIBRATION ATTENUATION IN A FLEXIBLE ROTOR USING A SHAPE MEMORY ALLOY
Submission Author:
Bárbara Nara Teixeira Cunha , MG
Co-Authors:
Bárbara Nara Teixeira Cunha, Orlando Tomaz da Silva Neto, Aldemir Ap Cavalini Jr, Valder Steffen Jr, Marco Túlio Santana Alves
Presenter: Bárbara Nara Teixeira Cunha
doi://10.26678/ABCM.COBEM2019.COB2019-2128
Abstract
The purpose of this paper is to present the numerical modeling of a flexible rotating shaft supported by two bearings. In this case, one of the bearings is composed of shape memory alloy (SMA) for passive and semi-active vibration control purposes. The SMA wires are attached along the horizontal direction of the shaft and its super elasticity behavior is used to perform the vibration control. The considered rotating machine is modeled using the finite element method, while the SMA is mathematically represented using the Brinson constitutive model. The numerical results demonstrate the effectiveness of the considered control approach.
Keywords
Shape Memory Alloy, Finite Element Method, Vibration control, Rotordynamics
