Journal of South China University of Technology (Natural Science Edition) ›› 2015, Vol. 43 ›› Issue (6): 48-55.doi: 10.3969/j.issn.1000-565X.2015.06.008

• Mechanical Engineering • Previous Articles     Next Articles

Theoretical Model and Eigen Solutions of Cylindrical Magnetorheological Fluid Couplings

Wang Gong-xian Zhang Yu Hu Zhi-hui Zhou Peng-zhong   

  1. School of Logistics Engineering，Wuhan University of Technology，Wuhan 430063，Hubei，China
  • Received:2014-09-25 Revised:2015-03-27 Online:2015-06-25 Published:2015-05-04
  • Contact: 胡志辉(1980-)，男，博士，讲师，主要从事起重运输机械关键零部件高性能化研究． E-mail:huzhihui@whut.edu.cn
  • About author:王贡献(1976-)，男，博士，副教授，主要从事结构动力学和实验研究． E-mail: wgx@ whut． edu． cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(51275369)

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Abstract: A nonlinear system dynamics model of cylindrical magnetorheological fluid (MRF) couplings，which considers such properties as the maximum transmission torque，the adjustable torque multiple，the phase difference of angular velocity，the stabilization time and the designed coupling dimension，is established，and the dominant eigen solutions reflecting the property indicators of the couplings is presented． Based on the eigen solutions，the dimension and properties of a MRF-132DG coupling are designed and evaluated． The results show that the proposed theoretical model and eigen solutions possess definite physical meanings，thus avoiding complicated numerical analysis of mathematical models and complex curve fitting of experimental property parameters． This research provides direct guidance and reference for the design and property analysis of MＲF couplings with the structure similar to MRF-132DG．

Key words: magnetorheological fluid coupling, phase difference of angular velocity, transmission torque, adjust-able multiple, theoretical model, eigen solution