Please wait a minute...
浙江大学学报(工学版)  2017, Vol. 51 Issue (11): 2239-2248    DOI: 10.3785/j.issn.1008-973X.2017.11.019
机械与动力工程     
不同轴瓦结构滑动轴承-转子系统的稳定性
李梦暄1, 吴价1, 郑水英2, 应光耀3, 刘淑莲4
1. 浙江大学 现代制造工程研究所, 浙江 杭州 310027;
2. 浙江大学 化工机械研究所, 浙江 杭州 310027;
3. 国网浙江省电力公司电力科学研究院, 浙江 杭州 310014;
4. 浙江科技学院 机械与汽车工程学院, 浙江 杭州 310023
Stability of bearing-rotor system with different bearing structures
LI Meng-xuan1, WU Jia1, ZHENG Shui-ying2, YING Guang-yao3, LIU Shu-lian4
1. Institute of Advanced Manufacturing Engineering, Zhejiang University, Hangzhou 310027, China;
2. Institute of Chemical Machinery, Zhejiang University, Hangzhou 310027, China;
3. State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China;
4. Department of Electro-Mechanical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
 全文: PDF(3379 KB)   HTML
摘要:

针对可倾瓦滑动轴承稳定性机理研究方法不完善的问题,提出可倾瓦滑动轴承三维润滑流场计算方法.该方法基于计算流体动力学软件FLUENT、结合自行开发的动网格算法可对可倾瓦滑动轴承三维润滑流场进行瞬态计算,与转子动力学计算耦合可以得到可倾瓦滑动轴承-多圆盘转子系统在不同转速下的轴心轨迹.对可倾瓦滑动轴承-多圆盘转子系统进行不同转速下的振动试验,测试轴颈的振幅以及涡动中心的偏移情况.结果表明,相比常规固定瓦滑动轴承(圆柱、椭圆和三油楔轴承),可倾瓦滑动轴承得到的轴心轨迹幅值更小、涡动中心沿载荷作用方向下沉更低且偏位角几乎为零,试验结果与理论计算吻合一致.

Abstract:

A three-dimensional (3D) lubrication flow field calculation method of tilting-pad journal bearings (TPJBs) was presented in order to solve the problem that the stability mechanism research method of TPJBs is not perfect at present. The calculation method was based on CFD software FLUENT and a self-developed dynamic mesh updating algorithm could be used for transient calculations of 3 D lubrication flow field of TPJBs. When coupled with rotor dynamics calculations, shaft center whirl orbits of TPJB-multi-disc rotor system under different rotational speeds could be calculated. Vibration tests of the TPJB-multi-disc rotor system under different rotational speeds were conducted on a test rig in order to obtain vibration of the shaft and drift of the shaft center. Results show that TPJBs have smaller amplitude, lower whirling center along load direction and almost negligible attitude angle compared to conventional fixed sliding surface journal bearings (cylinder, ellipse, and three oil wedge bearings). The experimental results accorded with the theoretical results.

收稿日期: 2016-09-30 出版日期: 2017-11-13
CLC:  TH113  
基金资助:

国家自然科学基金资助项目(51275452).

通讯作者: 郑水英,女,教授.ORCID:0000-0001-9661-5234.     E-mail: zhengshuiying@zju.edu.cn
作者简介: 李梦暄(1988-),男,博士生,从事可倾瓦滑动轴承CFD仿真等研究.ORCID:0000-0002-0035-9799.E-mail:dream@zju.edu.cn
服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
作者相关文章  

引用本文:

李梦暄, 吴价, 郑水英, 应光耀, 刘淑莲. 不同轴瓦结构滑动轴承-转子系统的稳定性[J]. 浙江大学学报(工学版), 2017, 51(11): 2239-2248.

LI Meng-xuan, WU Jia, ZHENG Shui-ying, YING Guang-yao, LIU Shu-lian. Stability of bearing-rotor system with different bearing structures. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(11): 2239-2248.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2017.11.019        http://www.zjujournals.com/eng/CN/Y2017/V51/I11/2239

[1] 钟一谔,何衍宗,王正,等.转子动力学[M].北京:清华大学出版社,1987:120-125.
[2] 张直明,张言羊,谢友柏.滑动轴承的流体动力润滑理论[M].北京:高等教育出版社,1986:99-100.
[3] 应光耀,童小忠,吴文健.9F燃气机组油膜涡动和油膜振荡的诊断及处理[J].浙江电力,2006,25(1):10-13. YING Guang-yao, TONG Xiao-zhong, WU Wen-jian. Diagnosis and treatment of oil whirling and oil whip on 9F combined-cycle power train[J]. Zhejiang Electric Power, 2006, 25(1):10-13.
[4] BOUARD L, FILLON M, FRENE J. Thermohydrodynamic analysis of tilting-pad journal bearings operating in turbulent flow regime[J]. Journal of Tribology, 1996, 118(1):225-231.
[5] FILLON M, DESBORDES H, FRENE J, et al. A global approach of thermal effects including pad deformations in tilting-pad journal bearings submitted to unbalance load[J]. Journal of Tribology, 1996, 118(1):169-174.
[6] MONMOUSSEAU P, FILLON M. Transient thermoelastohydrodynamic analysis for safe operating conditions of a tilting-pad journal bearing during start-up[J]. Tribology International, 2000, 33(3):225-231.
[7] EL-BUTCH A M, ASHOUR N M. Transient analysis of misaligned elastic tilting-pad journal bearing[J]. Tribology International, 2005, 38(1):41-48.
[8] GUO Yong, WANG Xiao-ning, YUAN Xiao-yang, et al. Study on the thermoelastohydrodynamic performance of tilting-pad bearings for large-scale power units[C]//4th IEEE Conference on Industrial Electronics and Applications. Xi'an, China:IEEE, 2009:2070-2075.
[9] LI Peng-ju, ZHU Yong-sheng, ZHANG You-yun, et al. The investigation of the temperature of high speed and heavy haul tilting pad journal bearing[J]. Industrial Lubrication and Tribology, 2015, 67(4):301-307.
[10] PAGANO S, ROCCA E, RUSSO M, et al. Dynamic behaviour of tilting-pad journal bearings[J]. Proceedings of the Institution of Mechanical Engineers, Part J:Journal of Engineering Tribology, 1995, 209(4):275-285.
[11] 焦映厚,陈照波,刘福利,等.Jeffcott转子-可倾瓦滑动轴承系统不平衡响应的非线性分析[J].中国电机工程学报,2004,24(12):227-232. JIAO Ying-hou, CHEN Zhao-bo, LIU Fu-li, et al. Nonlinear analysis of unbalance response for Jeffcott rotor-tilting pad bearing system[J]. Proceedings of the CSEE, 2004, 24(12):227-232.
[12] GUO Zeng-lin, HIRANO T, KIRK R G. Application of CFD analysis for rotating machinery-part I:hydrodynamic, hydrostatic bearings and squeeze film damper[J]. Journal of Engineering for Gas Turbines and Power, 2005, 127(2):445-451.
[13] ABU-MAHFOUZ I, ADAMS M L. Numerical study of some nonlinear dynamics of a rotor supported on a three-pad tilting pad journal bearing (TPJB)[J]. Journal of Vibration and Acoustics, 2005, 127(3):262-272.
[14] BAI Hui-yu, LIU Xing-xing, LI Hong-guang, et al. Nonlinear dynamic characteristics of a large-scale tilting pad journal bearing-rotor system[J]. Journal of Vibroengineering, 2014, 16(8):4045-4064.
[15] CHEN P Y P, HAHN E J. Use of computational fluid dynamics in hydrodynamic lubrication[J]. Proceedings of the Institution of Mechanical Engineers, Part J:Journal of Engineering Tribology, 1998, 212(6):427-436.
[16] CUPILLARD S, GLAVATSKIH S, CERVANTES M J. Computational fluid dynamics analysis of a journal bearing with surface texturing[J]. Proceedings of the Institution of Mechanical Engineers, Part J:Journal of Engineering Tribology, 2008, 222(2):97-107.
[17] GERTZOS K P, NIKOLAKOPOULOS P G, PAPADOPOULOS C A. CFD analysis of journal bearing hydrodynamic lubrication by Bingham lubricant[J]. Tribology International, 2008, 41(12):1190-1204.
[18] SONG Yin, GU Chun-wei. Development and validation of a three-dimensional computational fluid dynamics analysis for journal bearings considering cavitation and conjugate heat transfer[J]. Journal of Engineering for Gas Turbines and Power, 2015, 137(12):122502.
[19] MENG F M, YANG T. Preliminary study on mechanism of cavitation in lubricant of textured sliding bearing[J]. Proceedings of the Institution of Mechanical Engineers, Part J:Journal of Engineering Tribology, 2013, 227(7):695-708.
[20] PAPADOPOULOS C I, KAIKTSIS L, FILLON M. CFD thermohydrodynamic analysis of 3-D sector-pad thrust bearings with rectangular dimples[C]//ASME Turbo Expo 2013:Turbine Technical Conference and Exposition. San Antonio, Tx, United states:ASME, 2013:V07BT30A002.
[21] CUPILLARD S, CERVANTES M J, GLAVATSKIH S. Thermohydrodynamic analysis of a journal bearing with a microgroove on the shaft[J]. Computational Thermal Sciences:An International Journal, 2014, 6(1):47-57.
[22] MERUANE V, PASCUAL R. Identification of nonlinear dynamic coefficients in plain journal bearings[J]. Tribology International, 2008, 41(8):743-754.
[23] LIU Hui-ping, XU Hua, ELLISON P J, et al. Application of computational fluid dynamics and fluid-structure interaction method to the lubrication study of a rotor-bearing system[J]. Tribology Letters, 2010, 38(3):325-336.
[24] LIN Qi-yin, WEI Zheng-ying, WANG Ning, et al. Analysis on the lubrication performances of journal bearing system using computational fluid dynamics and fluid-structure interaction considering thermal influence and cavitation[J]. Tribology International, 2013, 64:8-15.
[25] LI Qiang, YU Gui-chang, LIU Shu-lian, et al. Application of computational fluid dynamics and fluid structure interaction techniques for calculating the 3D transient flow of journal bearings coupled with rotor systems[J]. Chinese Journal of Mechanical Engineering, 2012, 25(5):926-932.
[26] VARELA A C, NIELSEN B B, SANTOS I F. Steady state characteristics of a tilting pad journal bearing with controllable lubrication:Comparison between theoretical and experimental results[J]. Tribology International, 2013, 58:85-97.
[27] RINDI A, ROSSIN S, CONTI R, et al. Efficient models of three-dimensional tilting pad journal bearings for the study of the interactions between rotor and lubricant supply plant[J]. Journal of Computational and Nonlinear Dynamics, 2016, 11(1):011011.
[28] LI Meng-xuan, GU Chao-hua, PAN Xiao-hong, et al. A new dynamic mesh algorithm for studying the 3D transient flow field of tilting pad journal bearings[J]. Proceedings of the Institution of Mechanical Engineers, Part J:Journal of Engineering Tribolog, 2016, 230(12):1470-1482.
[29] 李强,刘淑莲,于桂昌,等.非线性转子-轴承耦合系统润滑及稳定性分析[J].浙江大学学报:工学版,2012,46(10):1729-1736. LI Qiang, LIU Shu-lian, YU Gui-chang, et al. Lubrication and stability analysis of nonlinear rotor-bearing system[J]. Journal of Zhejiang University (Engineering Science), 2012, 46(10):1729-1736.
[30] 李强.滑动轴承动力特性的3D瞬态流场计算和实验研究[D].杭州:浙江大学, 2012. LI Qiang. 3D transient flow calculation and experimental research on dynamic characteristics of journal bearing[D]. Hangzhou:Zhejiang University, 2012.
[31] 于桂昌,刘淑莲,郑水英.扰动情况下双油槽圆形轴瓦滑动轴承性能分析[J].振动与冲击,2012, 31(5):46-49, 54. YU Gui-chang, LIU Shu-lian, ZHENG Shui-ying. Double oil grooved round sliding bearing performance analysis with disturbance[J]. Journal of Vibration and Shock, 2012, 31(5):46-49, 54.
[32] 刘淑莲.转子-轴承系统非线性特性研究及油膜振荡的在线消除[D].杭州:浙江大学, 2004. LIU Shu-lian. Research on nonlinear dynamics of rotor-bearing system and on-line elimination of the oil film whip[D]. Hangzhou:Zhejiang University, 2004.
[33] KHONSARI M M, BOOSER E R. Applied tribology:bearing design and lubrication[M]. Hoboken, New Jersey:John Wiley & Sons, 2008.

No related articles found!