Rotor dynamic behaviors of a novel bearing system with bi-directional tilting effects: Experiment and theory

被引:9
|
作者
Xie, Zhongliang [1 ,2 ]
Yang, Kang [3 ]
Gao, Wenjun [4 ]
Zhao, Bin [5 ]
Du, Peng [6 ]
Zhang, Meng [7 ]
机构
[1] Northwestern Polytech Univ, Dept Engn Mech, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ Shenzhen, Res & Dev Inst, Shenzhen 518063, Peoples R China
[3] 213th Res Inst China Ordnance Ind, Xian 710000, Peoples R China
[4] Northwestern Polytech Univ, Sch Power & Energy, Xian 710072, Peoples R China
[5] Harbin Engn Univ, Harbin 150001, Peoples R China
[6] Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian 710072, Peoples R China
[7] Harbin Engn Univ, Yantai Res Inst, Yantai 265502, Peoples R China
基金
中国国家自然科学基金;
关键词
Water -lubricated bearing -rotor system; Bi-misaligned effects; Supporting performance; Vibration response; JOURNAL BEARING; COUPLING MISALIGNMENT; PARALLEL MISALIGNMENT; SURFACE; LUBRICATION; PERFORMANCE; TEXTURE; SHAFT; LOAD;
D O I
10.1016/j.ymssp.2024.111675
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
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.
引用
收藏
页数:33
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