Share Email Print
cover

Proceedings Paper

Dynamic evaluation on friction torque of bearing for space use
Author(s): Shichao Chen; Xintao Xia; Zhongyu Wang; Changxing Wang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

As the important index of evaluating the operational sensitivity of the rolling bearings, the friction torque of bearing for space using influences the signal transferring accuracy and the system stability of the spacecraft directly. It is difficult to do the large number of tests based on the particularity of the bearing for space using. Therefore, considering the limitation of the statistical principle, a dynamic evaluation model called the grey bootstrap modeling (GBM) is proposed in the paper to dynamically evaluate the friction torque of bearing for space using. The test shows under the condition of the minimum of the mean uncertainty, choosing the suitable rolling factor, the number of resampling and the confidence level, the GBM can describe the fluctuation interval of the friction torque on-line much better, and also can separate the systematic error. So, the GBM has the better performance of dynamic forecasting and its liability is quite high.

Paper Details

Date Published: 13 October 2008
PDF: 6 pages
Proc. SPIE 7129, Seventh International Symposium on Instrumentation and Control Technology: Optoelectronic Technology and Instruments, Control Theory and Automation, and Space Exploration, 712926 (13 October 2008); doi: 10.1117/12.807453
Show Author Affiliations
Shichao Chen, Henan Univ. of Science and Technology (China)
Xintao Xia, Henan Univ. of Science and Technology (China)
Zhongyu Wang, Beijing Univ. of Aeronautics and Astronautics (China)
Changxing Wang, Henan Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7129:
Seventh International Symposium on Instrumentation and Control Technology: Optoelectronic Technology and Instruments, Control Theory and Automation, and Space Exploration

© SPIE. Terms of Use
Back to Top