为了研究倾斜轴颈在不同轴承倾角设计下的动态润滑特性变化规律，以某16100 TEU大型集装箱船的传动轴系后艉轴承为研究对象，建立考虑轴颈和轴承双倾角的数值模型。通过数值仿真方法，研究了轴颈大角度倾斜对轴承润滑性能的影响，分析轴承不同倾角位置对油膜压力分布和轴心轨迹的改善效果。结果表明，当轴颈出现大角度倾斜时，轴承润滑状况显著恶化，最大偏心率达到0.97。相较于轴承单倾角设计，双倾角设计在降低偏心率、优化油膜压力分布和稳定轴心轨迹方面表现出明显的优势。研究可为大型船舶后艉轴承的设计提供理论参考。
To investigate the dynamic lubrication characteristics of inclined shafts under different bearing inclination designs, this study focuses on the aft stern bearing of the propulsion shaft system of a 16100TEU large container ship. A numerical model considering dual inclinations of the shaft and bearing was established. Through numerical simulations, the impact of large shaft inclinations on bearing lubrication performance was examined, and the improvements in oil film pressure distribution and shaft center trajectory due to different bearing inclination positions were analyzed. The results indicate that when the shaft has a large inclination, the bearing lubrication condition significantly deteriorates, with the maximum eccentricity reaching 0.97. Compared to single-inclination design of bearings, dual-inclination designs show marked advantages in reducing eccentricity, optimizing oil film pressure distribution, and stabilizing shaft center trajectories.This study provides theoretical reference for the design of aft stern bearings in large ships.
2025,47(12): 78-85 收稿日期：2024-8-20
DOI：10.3404/j.issn.1672-7649.2025.12.015
分类号：U664.21
基金项目：国家自然科学基金重点基金资助项目（51839005）；高技术船舶科研专项（K24532-1-2）
作者简介：钟欣荣(2000-),男,硕士研究生,研究方向为船舶动力装置系统性能优化
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