Volume 29 Issue 9
Sep.  2014
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Article Navigation >  Journal of Aerospace Power  > 2014  >  29(9): 2129-2135
XU Yong-zhi, XIA Xin-tao. Analysis of parameter-nonparametric fusion on space bearing friction moment[J]. Journal of Aerospace Power, 2014, 29(9): 2129-2135. doi: 10.13224/j.cnki.jasp.2014.09.016
Citation: XU Yong-zhi, XIA Xin-tao. Analysis of parameter-nonparametric fusion on space bearing friction moment[J]. Journal of Aerospace Power, 2014, 29(9): 2129-2135. doi: 10.13224/j.cnki.jasp.2014.09.016
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Analysis of parameter-nonparametric fusion on space bearing friction moment

doi: 10.13224/j.cnki.jasp.2014.09.016

  • 1. School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China;

  • 2. School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang Henan 471003, China

  • Received Date: 2013-09-26
  • Publish Date: 2014-09-28
    Abstract
  • Parameter-nonparametric fusion method was put forward to analyze the characteristic of space bearing friction moment, by using statistical method to judge the basic characteristic of space bearing friction moment; symbol judgment method was used to determine the time sequence characteristic of space bearing friction moment; while rank sum judgment method was used to determine the state characteristic of space bearing friction moment; these three methods were fused to analyze the overall characteristic of space bearing friction moment, in order to evaluate the friction characteristic of space bearing. The method can avoid the effect of the plus or minus and some mini-max values and time sequence on overall characteristic of space bearing. The basic characteristic, the time sequence characteristic and the state characteristic of space bearing were discovered to reflect the overall characteristic on space bearing; the results show that the better space bearing are determined according to working performance and stabilization of the space bearing, at the same time, on the basis of the time sequence and state characteristic of the space bearing, the optimal overall space bearing was chosen, with the credibility up to 99%, in line with the current selection of space bearings; there were more information of the space bearing with use of the fusion method, showing that the fusion method could choose the space bearing of the optimal overall characteristic from a handful of space bearings.

     

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