Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
ISHM Based Approach for Fault Detection in a Rotating Machine with a Composite Shaft
Submission Author:
Marcela Andréa Teodoro Sousa , MG
Co-Authors:
Marcela Andréa Teodoro Sousa , Karina Mayumi Tsuruta, Lucas Rocha, Roberto Mendes Finzi Neto, Aldemir Ap Cavalini Jr, Valder Steffen Jr
Presenter: Marcela Andréa Teodoro Sousa
doi://10.26678/ABCM.COBEM2019.COB2019-1503
Abstract
Composite materials shafts have been showing promising results when applied to rotating machines due to its low weight/strength ratio and good fatigue resistance. Despite the advantages in comparison to more traditional materials, composites present different types of damage that are hard to detect and can lead to abrupt collapse. Therefore, it is necessary to use monitoring techniques to detect incipient faults and prevent failure. This work evaluates the application of the structural health monitoring approach based on the electromechanical impedance method (ISHM technique) on a carbon fiber reinforced polymer (CFRP) shaft of a horizontal rotor supported by ball bearings. Two sets of four PZT patches were attached to the shaft on different positions and the fault condition was simulated by the addition of a small mass to the shaft. The effects of the rotor’s rotation speed, position of the fault, and temperature variation were evaluated to increase the method robustness.
Keywords
Structural Health Monitoring, Rotating machine, Electromechanical Impedance Method, composite material
