为探究水润滑轴承受温度变化影响而引起的自身振动特性变化的现象，对水润滑轴承借助有限差分法建立水弹流润滑模型，研究不同工况参数对水润滑轴承动刚度和动阻尼的影响规律，分析不同进水温度和载荷条件下水润滑轴承的动刚度Kyy、动阻尼Cyy、最小水膜厚度等振动特性相关参数的变化规律，并进行振动特性试验。研究表明：随着温度升高，轴承水膜压力下降，最小水膜厚度减小，表明温度升高载荷增加时动刚度Kyy和动阻尼Cyy会增大，且高温对动刚度Kyy和动阻尼Cyy影响更大；载荷和转速一致的条件下，轴承振动总振级随着温度升高而下降。
In order to explore the phenomenon of changes in its own vibration characteristics caused by the influence of temperature changes, the water stream lubrication model was established with the help of the limited difference method of water lubrication, and the dynamic stiffness and dynamic damping of the water lubrication bearing were studied at different operating parameters. The law of influence, analyze the dynamic rigidity of the water lubrication bearing under different water inlet temperature and load conditions, the dynamic rigidity Kyy of the water lubrication bearing, the dynamic damping Cyy, and the thickness of the minimum water film thickness, and the vibration characteristics test is performed. Studies have shown that as the temperature increases, the pressure of the bearing water film decreases, and the minimum water film thickness decreases, indicating that the temperature rigidity of the temperature increases the dynamic rigidity and the dynamic damping Cyy will increase, and the high temperature to the dynamic rigidity Kyy and the dynamic damping Cyy will be increased. The impact is greater; under the condition of the same load and the speed, the total vibration level of the bearing vibration decreases with the increase in temperature.
2022,44(24): 30-34 收稿日期：2022-08-27
DOI：10.3404/j.issn.1672-7649.2022.24.007
分类号：TH117.2
基金项目：国家自然科学基金资助项目(51839005)
作者简介：胡继敏(1985-),男,硕士,工程师,研究方向为舰船动力及热物理系统
参考文献：
[1] 夏瑞超. 船用磁力泵水润滑轴承振动特性研究[D]. 镇江:江苏大学, 2021.
[2] 王优强, 杨成仁. 水润滑橡胶轴承研究进展[J]. 润滑与密封, 2001(2):65-67
[3] 田宇忠. 基于有限元的水润滑橡胶尾轴承模态分析及试验研究[D]. 武汉:武汉理工大学, 2010.
[4] 王家序, 邱茜, 周广武, 等. 水润滑轴承振动噪声分析及实验研究[J]. 湖南大学学报(自然科学版), 2015, 42(8):53-58
[5] 龙慎文, 王优强, 周亚博, 等. 水润滑螺旋阶梯腔艉轴承的振特性[J]. 船舶工程, 2019, 41(3):59-63
[6] 王隽, 杨俊, 张雪冰, 等. 水润滑橡胶轴承振动噪声特性分析[J]. 节能技术, 2012, 30(5):392-396
[7] 王培培. 高线速度水润滑轴承振动研究[J]. 中国重型装备, 2021(1):37-39
[8] 黄莉. 船舶阻尼型水润滑尾轴承的振动性能研究[D]. 武汉:武汉理工大学, 2017.
[9] 劳坤胜, 金勇, 欧阳武, 等. 基于谐响应分析的水润滑尾轴承振动特性研究[J]. 声学技术, 2016, 35(5):214-217
[10] SMITH R L, PAN C T. An exploratory laboratory simulation of stick-slip induced vibration of water lubricated complianyer bearings[R]. Shaker Research Corporation Report, 1975, D-A018:998-1003.
[11] YAN Zhi-min, ZHOU Xin-cong, QIN Hong-ling, et al. Study on tribological and vibration performance of a new UHMWPE/ghite/NBR water lubricated bearing materal[J]. Wear, 2015, 332-333:872-878
[12] 程启超. 考虑轴弯曲的水润滑轴承静动特性研究[D]. 武汉:武汉理工大学, 2019.
[13] 杨沛然. 流体润滑数值分析[M]. 北京:国防工业出版社, 1998.
