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Examination of the Dynamic Behaviour of the Composite Hollow Shafts Subject to Unbalance

Ala’a M. Al-Falahat
Department of Mechanical Engineering, Faculty of Engineering, Mutah University, Al-Karak, Jordan

Abstract—The unbalance in rotating machines is one of the major sources of rotor damage. Therefore, providing information on the behaviours of the unbalance rotor shaft is necessary to avoid the early damage of the rotor shafts and improve the efficiency of the rotating machines. For this purpose, the dynamic behaviour of a rotating composite hollow shaft is investigated by analyzing the vibration of a homogenized finite element beam model contain a flexible composite hollow shaft and a solid disc through identifying the relationship between the rotor unbalance response with both magnitudes of the imbalance and the rotating speed of the rotor as a function of frequency response. The Campbell diagram and stability analysis of the composite shaft is investigated.

Index Terms—rotating machine, unbalance rotor, composite hollow shaft, finite element

Cite: Ala’a M. Al-Falahat, "Examination of the Dynamic Behaviour of the Composite Hollow Shafts Subject to Unbalance," International Journal of Mechanical Engineering and Robotics Research, Vol. 10, No.10, pp. 572-576, October 2021. DOI: 10.18178/ijmerr.10.10.572-576

Copyright © 2021 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.