The strong time-varying dynamic load, irregular and unpredictable impact of the propeller lead to the shaft inclination and uncertain contact, which worsen the stability of propulsion system. The paper studies the rotor dynamics of the system with bi-misaligned effect on the novel bearing lubricated by water. Researches indicate that misalignment has the stiffness-hardening effect on the main stiffness coefficient. It has stiffness-weakening effect on the cross-stiffness coefficient. Horizontal inclination has significant impact on the vibration phase of the shaft while vertical inclination influences the amplitude remarkably. The impact of bi-directional bias on vibration is combination of horizontal and vertical influences. The bi-direction inclination balances the effect of unidirectional vibrations. Results provide solid foundation for cutting-edge exploration and optimum design for such bearing systems.

中文翻译：

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具有双向倾斜效应的新型轴承系统的转子动态行为：实验与理论


螺旋桨强烈的时变动载荷、不规则且不可预测的冲击导致轴的倾斜和不确定的接触，从而恶化了推进系统的稳定性。本文研究了新型水润滑轴承双偏心效应系统的转子动力学。研究表明，不对中对主刚度系数具有刚度硬化效应。它对交叉刚度系数有减弱刚度的作用。水平倾角对轴的振动相位影响显着，垂直倾角对振幅影响显着。双向偏差对振动的影响是水平和垂直影响的综合。双向倾斜平衡了单向振动的影响。结果为此类轴承系统的前沿探索和优化设计提供了坚实的基础。