Longitudinal vibration of marine propeller-shafting system induced by inflow turbulence

Chen, Y.; Wang, L.; Hu, Hua

doi:10.1016/j.jfluidstructs.2016.11.002

Cited by 46 publications

(7 citation statements)

References 18 publications

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“…Ultimately, as stated in [5], the fluctuations of the shaft forces will cause axial vibration to occur on the coupled propeller-shaft system. Additionally, [6] reported that the vibration energy that is transmitted along the axial direction is dominant. The aim of this work is to review the working principles of several vibration suppression technologies and the dynamic responses of the propeller-shaft system with vibration isolators.…”

Section: Introductionmentioning

confidence: 99%

A Review of the Dynamic Analysis of Axial Vibrations in Marine Propulsion Shafting System Due to Propeller Excitation

Amirudin

Kamarumtham

Haripriyono

et al. 2022

AEJ

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Over the past decades, the attenuation of axial vibration due to propeller excitation has long been a complex problem due to the coupling dynamics of the propeller-shafting system. As axial vibration is often the cause of fatigue damage to the propulsion shaft components as well as the root cause to acoustical radiation along a hull of a ship, there has been continuous interest in understanding the complex dynamic characteristics of the coupled propeller-shaft system and the methods to suppress the axial vibration in the system. Therefore, several studies have been conducted to solve this vibration problem on the longitudinal axis of the marine propulsion shafting system. This paper aims to provide the theoretical foundations of this problem by reviewing the modelling techniques of this coupled dynamic problem and cover the vibration reduction strategies that are proposed by the cited studies.

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Section: Introductionmentioning

confidence: 99%

A Review of the Dynamic Analysis of Axial Vibrations in Marine Propulsion Shafting System Due to Propeller Excitation

Amirudin

Kamarumtham

Haripriyono

et al. 2022

AEJ

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“…The dynamic thrust forces of the propeller transmit to the hull structure through bearings and cause underwater sound radiation. [1][2][3][4] In order to lower sound radiation, it is necessary to reduce the hull structure vibration excited by the propeller forces. [5][6][7] Among the bearings in the propulsion shafting system, the stern bearing located close to the propeller bears the largest lateral load, which is also the dominant path for the lateral vibration of the shaft transmitting to the hull.…”

Section: Introductionmentioning

confidence: 99%

Suppression of lateral vibration in a shafting system via an auxiliary active magnetic bearing with position control

Yang

Qin

Xie

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The bearings in a shafting system are important paths for the lateral vibration of the shaft to transmit to the hull structure and induce underwater sound. An auxiliary active magnetic bearing for suppressing the lateral vibration at the stern support of a shafting system is investigated. The active magnetic bearing situated close to the stern bearing generates electromagnetic forces to support the shaft, which decreases the contact stiffness as well as the friction between the shaft and the stern bearing and accordingly reduces the stern support acceleration. A dynamic model is established using the Timoshenko beam theory and Hamilton’s principle and the performance of the active magnetic bearing in vibration suppression of the shafting system is evaluated with position control. An experimental system is also built to verify the effectiveness of the active magnetic bearing. Numerical and experimental results have shown that the active magnetic bearing is able to suppress the stern support acceleration responses after the shaft is suspended by the active magnetic bearing. Moreover, the orbit of the shaft center is controlled as well.

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“…1 An important source of underwater sound in the low frequency range is the fluctuating forces of a propeller rotating in the unsteady non-uniform wake field. 2 The unsteady forces are composed of periodic and broadband components. The narrowband periodic components usually occur at frequencies proportional to the shaft speed and the number of blades while the broadband components usually spread over hundreds of Hertz.…”

Section: Introductionmentioning

confidence: 99%

“…The narrowband periodic components usually occur at frequencies proportional to the shaft speed and the number of blades while the broadband components usually spread over hundreds of Hertz. 2 These dynamic forces acting on the propeller result in vibrations in the shafting system, which further transmit to the hull structure via the bearings. The transmission paths are usually classified into the axial and transverse ones according to the vibration transmission directions.…”

Section: Introductionmentioning

confidence: 99%

Active axial vibration control of a shaft-bearing system excited by the dynamic thrust force

Ren

Xie

Yang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part M:

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The axial vibration of a shaft-bearing system induced by the thrust excitation is usually composed of multiple tones. To suppress the axial vibration of the shaft-bearing system, two inertial electro-magnetic actuators are mounted symmetrically at the thrust bearing and work in parallel to exert control forces. The control signal is generated by an adaptive algorithm with subband filtering, which aims to attenuate over a broadband the vibration of the thrust bearing and its foundation induced by the dynamic thrust force. To reduce computational complexity, the recursive computation is partly realized with the auto-regressive moving average (ARMA) model. The proposed active control approach is evaluated numerically at first with the dynamic model of the shaft-bearing system and then verified with an experimental system. It is demonstrated by the numerical and experimental results that the active control approach is able to suppress the multi-tone vibration of the thrust bearing and the foundation. Moreover, in comparison to the single-band adaptive feedback algorithm, the adaptive algorithm with subband filtering is more effective when the disturbance contains multiple tones.

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Longitudinal vibration of marine propeller-shafting system induced by inflow turbulence

Cited by 46 publications

References 18 publications

A Review of the Dynamic Analysis of Axial Vibrations in Marine Propulsion Shafting System Due to Propeller Excitation

A Review of the Dynamic Analysis of Axial Vibrations in Marine Propulsion Shafting System Due to Propeller Excitation

Suppression of lateral vibration in a shafting system via an auxiliary active magnetic bearing with position control

Active axial vibration control of a shaft-bearing system excited by the dynamic thrust force

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