Analysis of flow field characteristics of multi-degree-of-freedom motor with air-floatation

被引：2
作者：
Li, Zheng [1 ]
Xing, Xuanxuan [1 ]
Wang, Xueting [1 ]
Du, Shenhui [1 ]
Sun, Hexu [1 ]
机构：
[1] Hebei Univ Sci & Technol, Sch Elect Engn, Zhongshan West Rd 491,Bldg 79-4-401, Shijiazhuang 050018, Hebei, Peoples R China
来源：
ADVANCES IN MECHANICAL ENGINEERING | 2021年 / 13卷 / 04期
基金：
中国国家自然科学基金;
关键词：
MDOF motor; air film flow field; stability; FEA; experimental verification; BEARINGS; DESIGN;
D O I：
10.1177/16878140211010642
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In order to combine the working performance of the motor and the specific requirements for accuracy, a model combining gas bearing with multi-degree-of-freedom (MDOF) motor is invoked. The bearing structure is optimized in terms of lubrication characteristics, which makes the motor life and deflection accuracy have been significantly improved. This kind of special bearing mainly provides a certain supporting force for the motor. Its stability directly affects the output performance of the motor. It should be ensured that the bearing can be used as a stable supporting structure. This paper mainly analyzes the flow field characteristics of this kind of motor, and discusses the stability of the motor by changing the gas film thickness and the motor rotor speed. Firstly, the structure and basic parameters of the air bearing motor are introduced, and the role of the bearing in the motor is described. Then, the film flow field is analyzed theoretically and simulated by finite element software. Finally, the experimental platform of gas bearing stability is built to verify the rationality of finite element analysis. The results provide references for the application of gas bearings in MDOF motors, and provide a direction for the development of precision in MDOF motors.
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页数：12
相关论文
共 32 条
[1]   A local discontinuous Galerkin method for the compressible Reynolds lubrication equation [J].
Arregui, Inigo ;
Jesus Cendan, J. ;
Gonzalez, Maria .
APPLIED MATHEMATICS AND COMPUTATION, 2019, 349 :337-347
[2]   Frictional behavior of bearing material under gas lubricated conditions [J].
Bin Abdollah, Mohd Fadzli ;
Mazlan, Mohd Afiq Azfar ;
Amiruddin, Hilmi ;
Tamaldin, Noreffendy .
INTERNATIONAL TRIBOLOGY CONFERENCE MALAYSIA 2013, 2013, 68 :688-693
[3]   Appropriate stabilized Galerkin approaches for solving two-dimensional coupled Burgers' equations at high Reynolds numbers [J].
Chai, Yong ;
Ouyang, Jie .
COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2020, 79 (05) :1287-1301
[4]   Numerical simulation and experimental study of thrust air bearings with multiple orifices [J].
Charki, A. ;
Diop, K. ;
Champmartin, S. ;
Ambari, A. .
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2013, 72 :28-38
[5]  
Cheng XB, 2014, PROCEEDINGS OF THE ASME INTERNAL COMBUSTION ENGINE DIVISION FALL TECHNICAL CONFERENCE, 2013, VOL 2
[6]   Static characteristic analysis and experimental research of aerostatic thrust bearing with annular elastic uniform pressure plate [J].
Dong, Hao ;
Zhao, Xiao-Long ;
Zhang, Jun-an .
ADVANCES IN MECHANICAL ENGINEERING, 2015, 7 (03) :1-13
[7]   Aerostatic bearings design and analysis with the application to precision engineering: State-of-the-art and future perspectives [J].
Gao, Qiang ;
Chen, Wanqun ;
Lu, Lihua ;
Huo, Dehong ;
Cheng, Kai .
TRIBOLOGY INTERNATIONAL, 2019, 135 :1-17
[8]   CFD based investigation on influence of orifice chamber shapes for the design of aerostatic thrust bearings at ultra-high speed spindles [J].
Gao, Siyu ;
Cheng, Kai ;
Chen, Shijin ;
Ding, Hui ;
Fu, Hongya .
TRIBOLOGY INTERNATIONAL, 2015, 92 :211-221
[9]   On special solutions of the Reynolds equation from lubrication [J].
Georgescu, A ;
Nicolescu, B ;
Popa, N ;
Bolosteanu, M .
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 2001, 133 (1-2) :367-372
[10]   An adaptive finite element method for the inequality-constrained Reynolds equation [J].
Gustafsson, Tom ;
Rajagopal, Kumbakonam R. ;
Stenberg, Rolf ;
Videman, Juha .
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2018, 336 :156-170
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