饱和含液穿孔板条水润滑艉轴承减振性能研究

金勇; 邝俊信; 田相玉; 劳坤胜; 欧阳武; 刘正林

doi:10.19693/j.issn.1673-3185.01402

饱和含液穿孔板条水润滑艉轴承减振性能研究

Study on vibration-reduction performance of water-lubricated stern bearing with fluid-saturated perforated slab

摘要

摘要:
目的水润滑艉轴承是轴系振动的主要传递部件，为了提高其减振降噪的动态性能，
方法设计一种饱和含液穿孔板条。基于流固耦合理论，利用有限元软件ANSYS进行常规水润滑艉轴承和阻尼增强型水润滑艉轴承的模态分析及谐响应分析，以得到穿孔板条对轴承动态特性的影响规律。
结果仿真和试验结果表明：饱和含液穿孔板条设计可以有效降低艉轴承振动的幅值传递水平。
结论研究结果对于艉轴承的减振性能提升具有一定的指导意义。

Abstract:
Objectives As the first element to support the shaft and transfer the vibration, water-lubricated stern bearing becomes an important part of ship shafting. To enhance its dynamic performance on vibration and noise reduction,
Methods a fluid-saturated perforated slab was designed. Based on the theory of fluid-structure interaction, the modal analysis and harmonic response analysis on conventional water-lubricated stern bearings and the water-lubricated stern bearings with fluid-saturated perforated slab were carried out by using the finite element analysis software ANSYS to analyze the influence of the fluid-saturated perforated slab.
Results The simulation and test results show that the design of the fluid-saturated perforated slab can effectively reduce the vibration amplitude of stern bearing.
Conclusions The research results has certain guiding significance for the improvement of the performance of stern bearing.

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