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 Akile Nee Halilbee,Cong Zhang,Osman Azmi Ö,et al.Effect of Coupled Torsional and Transverse Vibrations of the Marine Propulsion Shaft System[J].Journal of Marine Science and Application,2021,(2):201-212.[doi:10.1007/s11804-021-00205-2]
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Effect of Coupled Torsional and Transverse Vibrations of the Marine Propulsion Shaft System


Effect of Coupled Torsional and Transverse Vibrations of the Marine Propulsion Shaft System
Akile Ne?e Halilbe?e12 Cong Zhang3 Osman Azmi Özsoysal1
Akile Ne?e Halilbe?e12 Cong Zhang3 Osman Azmi Özsoysal1
1. Faculty of Naval Architecture and Ocean Engineering, Istanbul Technical University, ?stanbul 34469, Turkey;
2. Fatsa Faculty of Marine Sciences, Ordu University, Ordu 52400, Turkey;
3. School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China
Coupled torsional-transverse vibrationsForced vibrationsMarine propulsion shaft systemCross-section eccentricityJeffcott rotorCoupled vibration in rotor system
In this study, the coupled torsional-transverse vibration of a propeller shaft system owing to the misalignment caused by the shaft rotation was investigated. The proposed numerical model is based on the modified version of the Jeffcott rotor model. The equation of motion describing the harmonic vibrations of the system was obtained using the Euler-Lagrange equations for the associated energy functional. Experiments considering different rotation speeds and axial loads acting on the propulsion shaft system were performed to verify the numerical model. The effects of system parameters such as shaft length and diameter, stiffness and damping coefficients, and cross-section eccentricity were also studied. The cross-section eccentricity increased the displacement response, yet coupled vibrations were not initially observed. With the increase in the eccentricity, the interaction between two vibration modes became apparent, and the agreement between numerical predictions and experimental measurements improved. Given the results, the modified version of the Jeffcott rotor model can represent the coupled torsional-transverse vibration of propulsion shaft systems.


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Received date:2020-09-09;Accepted date:2021-02-28。
Foundation item:This investigation was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) 2214-A International Doctoral Research Fellowship Programme, while experiments were performed at the Wuhan University of Technology.
Corresponding author:Akile Ne?e Halilbe?e, halilbese@itu.edu.tr
Last Update: 2021-09-06