CREEM 2019

XXVI Congresso Nacional de Estudantes de Engenharia Mecânica

VIBRATION SUPPRESSION ON A ROTATING MACHINE BY THE USE OF ELECTROMAGNETIC ACTUATORS AND A PID CONTROLLER

Submission Author: Iago Pereira , MG
Co-Authors: Iago Pereira, Felipe Carmo Carvalho, Leandro Leão, Aldemir Ap Cavalini Jr, Valder Steffen Jr
Presenter: Iago Pereira

doi://10.26678/ABCM.CREEM2019.CRE2019-0073

 

Abstract

Vibration will always be present in rotating machines and its amplitudes are especially due to unbalance forces. However, due to safety reasons and design constraints, vibration levels should be kept as small as possible. This way, this paper presents an electromagnetic actuator (EMA) to be applied on a rotating machine on its bearing position, composing a hybrid bearing, aiming at shaft vibration suppression. A proportional-integral-derivative (PID) controller will be used for deriving the desired control laws. A rotor composed by a flexible horizontal shaft, two rigid discs, and two selfaligning ball bearings is modeled by the so-called finite elements (FE) method, considering the Timoshenko beam theory. The numerical results are encouraging, highlighting the efficiency of the PID technique to control vibrations on rotating machines.

Keywords

rotating machines, vibration supression, PID controller, finite elements method

 

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