哈尔滨工程大学学报2026，Vol.47Issue(6)：1330-1339,10.DOI:10.11990/jheu.202405033
考虑轴颈倾斜的水润滑轴承混合润滑动力学特性分析
Analysis of mixed lubrication dynamic characteristics of water-lubricated bearing considering journal tilt
摘要
Abstract
Aiming at the lubrication failure and abnormal vibration of ship water-lubricated bearings under journal tilt and local heavy-load conditions,a mixed lubrication model for water-lubricated bearings with a large aspect ratio was es-tablished considering journal tilt,a method for solving the 16 dynamic characteristic coefficients was derived,and the numerical model was validated by experiments and simulations.The effects of journal tilt angle and eccentricity on the lubrication performance and dynamic characteristics of water-lubricated bearings were investigated.The results show that increasing both tilt angle and eccentricity leads to increased stiffness.When the tilt angle exceeds 0.03 mrad,the increase in radial stiffness diminishes,while bending stiffness continues to increase and damping remains almost unchanged.Under the same operating conditions,misalignment reduces the minimum water film thickness and causes excessive local water film pressure.Compared with aligned conditions,misalignment results in greater increases in stiff-ness and damping at higher eccentricities.These findings provide a reference for optimizing the lubrication performance design of water-lubricated bearings.关键词
轴颈倾斜/润滑机理/水润滑轴承/混合润滑/动特性系数/船舶推进系统/润滑性能/偏心率Key words
journal tilt/lubrication mechanism/water-lubricated bearing/mixed lubrication/dynamic characteristic coefficients/ship propulsion system/lubrication performance/eccentricity ratio分类
交通工程引用本文复制引用
李瑞卿,欧阳武,杨浩,刘祺霖,金勇,喻家鹏..考虑轴颈倾斜的水润滑轴承混合润滑动力学特性分析[J].哈尔滨工程大学学报,2026,47(6):1330-1339,10.基金项目
国家自然科学基金项目(52071244). （52071244）
