Lateral-torsional coupled vibration of a propulsion shaft with a diesel engine supported by a resilient mount

Han, Hyung-Suk; Lee, Kyoung-Hyun; Jeon, Soo Hong; Park, Sungho

doi:10.1007/s12206-017-0715-y

Cited by 12 publications

(8 citation statements)

References 3 publications

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“…Eq. (14) shows that the critical excitation amplitude is related to both the damping and stiffness of system.…”

Section: Nature Of Solutionmentioning

confidence: 99%

“…Eq. (14) determines the critical excitation with respect to the stability of raft frame vibration, i.e., _ = 21 m/s 2 . When the excitation exceeds this value, the raft frame vibration is unstable.…”

Section: Frequency Response Curvementioning

confidence: 99%

“…Both longitudinal and lateral vibrations are present in the propulsion shaft system [12,13]. In particular, lateral vibrations can significantly degrade the stability of system [14]. Notably, Zhang Qinglei et al [15] reported that in scenarios where the lateral vibration is coupled with longitudinal vibration, large errors occur if the system is only treated as linear.…”

Section: Introductionmentioning

confidence: 99%

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Stability analysis of floating raft system under multiexcitation condition

Li¹,

Zhang²

2020

J. vibroeng.

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A floating raft system is subjected to multiple excitation sources with multiple frequencies for each excitation source. Considering the two characteristics of excitation source, the stability of floating raft system was analyzed. A vibration equation for the floating raft system under multiexcitation condition was established. A multiscale method was then used to solve the equation. The amplitude-frequency response equation and unstable region of solution are discussed. The results show that the vibration of raft frame fits the pattern of soft-spring vibration. This indicates that the excitation of main raft unit with a rigid connection compromises the stability of the system, whereas the excitation of unit with elastic connection increases stability.

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“…Eq. (14) shows that the critical excitation amplitude is related to both the damping and stiffness of system.…”

Section: Nature Of Solutionmentioning

confidence: 99%

Section: Frequency Response Curvementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Stability analysis of floating raft system under multiexcitation condition

Li¹,

Zhang²

2020

J. vibroeng.

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“…He et al (2020) derived the governing equations and the boundary conditions of wings through Hamilton's principle to achieve a rigid-flexible wing under bending and twisting deflection. In addition, Han et al (2017) and Hong et al (2020) studied a rotor system with a dynamic model in which the rotor disk is placed in the middle of a massless elastic shaft. The equation of motion was obtained through Lagrangian dynamics for lateral-torsional vibrations.…”

Section: Introductionmentioning

confidence: 99%

“…The equation of motion was obtained through Lagrangian dynamics for lateral-torsional vibrations. Han et al (2017) derived the equation of motion by assuming that the diesel engine drive system could be approached as a simple rotor model such as a Jeffcott rotor. Hashemi and Richard (2000) used the finite element method to model a bending-twisting beam.…”

Section: Introductionmentioning

confidence: 99%

Effect of Coupled Torsional and Transverse Vibrations of the Marine Propulsion Shaft System

Halilbeşe

Zhang

Özsoysal

2021

J. Marine. Sci. Appl.

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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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A Review of Fault Diagnosis Methods for Marine Electric Propulsion System

Deng

Zou

et al. 2022

Proceedings of IncoME-VI and TEPEN 2021

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show abstract

Lateral-torsional coupled vibration of a propulsion shaft with a diesel engine supported by a resilient mount

Cited by 12 publications

References 3 publications

Stability analysis of floating raft system under multiexcitation condition

Stability analysis of floating raft system under multiexcitation condition

Effect of Coupled Torsional and Transverse Vibrations of the Marine Propulsion Shaft System

A Review of Fault Diagnosis Methods for Marine Electric Propulsion System

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