Journal of South China University of Technology (Natural Science Edition) ›› 2015, Vol. 43 ›› Issue (3): 21-28.doi: 10.3969/j.issn.1000-565X.2015.03.004

• Mechanical Engineering • Previous Articles     Next Articles

Experimental Investigation into Dynamic Characteristics of Tilting Pad Bearing with Leading Edge Groove

Li Wei-Guang1 Yang Qi-jiang1 Meng Qi-yong2 Peng Zhe1 Luo Jian-bin1 Zhao Wei1 Luo Jie-xing1   

  1. 1． School of Mechanical and Automotive Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China;2． School of Mechanical Engineering，Guangzhou College of South China University of Technology，Guangzhou 510800，Guangdong，China
  • Online:2015-03-25 Published:2015-02-10
  • Contact: 李伟光(1958-)，男，教授，博士生导师，主要从事制造过程计算机控制、旋转机械振动与故障诊断等研究． E-mail:wguangli@scut.edu.cn
  • About author:李伟光(1958-)，男，教授，博士生导师，主要从事制造过程计算机控制、旋转机械振动与故障诊断等研究．
  • Supported by:
    Supported by the Projects of Key Areas in Guangdong and Hong Kong(2011BZ100012)

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Abstract: Firstly，according to the lubrication characteristics of tilting pad bearing，a novel three-pad tilting pad bearing with leading edge groove (LEG) was proposed． Secondly，in order to obtain the test parameters of the bearing，a dynamic performance test rig with the functions of automatic data acquisition and real-time data analysis was developed． Then，the temperature characteristics of flooded bearing and LEG bearing were analyzed in a com-parison way，and eight dynamic parameters of tilting pad bearing were obtained respectively via finite difference al-gorithm and frequency sweep excitation test． Finally，the effectiveness of the proposed test method was verified by a comparison between the theoretical results and the test ones． It is found that the developed bearing is of good tempera-ture，stiffness and damping characteristics．

Key words: leading edge groove, tilting pad bearing, pad temperature, dynamic characteristic