5-DOF Dynamic Modeling of Rolling Bearing with Local Defect considering Comprehensive Stiffness under Isothermal Elastohydrodynamic Lubrication | |
Yan, Pengfei1; Yan, Changfeng1; Wang, Kai3; Wang, Fengtao2; Wu, Lixiao1 | |
刊名 | Shock and Vibration |
2020 | |
卷号 | 2020 |
关键词 | Defects Degrees of freedom (mechanics) Film thickness Isotherms Lubricating oils Roller bearings Stiffness Degree of freedom (dof) Elastohydrodynamic lubrications (EHL) Isothermal elastohydrodynamic lubrication Life predictions Lubrication oil film Oil film thickness Vibration amplitude Vibration characteristics |
ISSN号 | 10709622 |
DOI | 10.1155/2020/9310278 |
英文摘要 | The sliding of the rolling element in the load zone would cause the bearing's wear and failure at high speed under elastohydrodynamic lubrication (EHL) condition. Aiming at this phenomenon, considering lubrication oil film, time-varying displacement, radial clearance, and comprehensive stiffness, a five degree-of-freedom (DOF) dynamic model of rolling bearing with local defect is proposed based on isothermal EHL and which is validated by experimental data. The variation of oil film stiffness, comprehensive stiffness, and vibration characteristics of rolling bearing is studied under different speeds and loads. The results show that the lubricating oils with different viscosities have a certain influence on the bearing oil film thickness and comprehensive stiffness. As the load increases, the oil film stiffness and comprehensive stiffness would increase, and the oil film thickness would decrease. And as the tangential speed increases, the oil film stiffness would increase, and the oil film thickness and comprehensive stiffness would decrease. The vibration amplitude of the rolling bearing is enhanced with the increase of the rotation speed and the radial load. This model is helpful for the optimization, the correct use of lubricants, and life prediction of rolling bearing. © 2020 Pengfei Yan et al. |
WOS研究方向 | Acoustics ; Engineering ; Mechanics |
语种 | 英语 |
出版者 | Hindawi Limited, 410 Park Avenue, 15th Floor, 287 pmb, New York, NY 10022, United States |
WOS记录号 | WOS:000549978200003 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/115689] |
专题 | 机电工程学院 |
作者单位 | 1.School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou, Gansu; 730050, China; 2.School of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu, Anhui; 241000, China 3.State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an, Shaanxi; 710049, China; |
推荐引用方式 GB/T 7714 | Yan, Pengfei,Yan, Changfeng,Wang, Kai,et al. 5-DOF Dynamic Modeling of Rolling Bearing with Local Defect considering Comprehensive Stiffness under Isothermal Elastohydrodynamic Lubrication[J]. Shock and Vibration,2020,2020. |
APA | Yan, Pengfei,Yan, Changfeng,Wang, Kai,Wang, Fengtao,&Wu, Lixiao.(2020).5-DOF Dynamic Modeling of Rolling Bearing with Local Defect considering Comprehensive Stiffness under Isothermal Elastohydrodynamic Lubrication.Shock and Vibration,2020. |
MLA | Yan, Pengfei,et al."5-DOF Dynamic Modeling of Rolling Bearing with Local Defect considering Comprehensive Stiffness under Isothermal Elastohydrodynamic Lubrication".Shock and Vibration 2020(2020). |
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