Volume 29 Issue 8
Aug.  2014
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YANG Le-chang, ZHANG Jian-guo, SUN Jing, HAN Jian-chao. Dynamics and reliability for rubbing rotor considering the characteristic of parameter’s random distribution[J]. Journal of Aerospace Power, 2014, (8): 1961-1967. doi: 10.13224/j.cnki.jasp.2014.08.025
Citation: YANG Le-chang, ZHANG Jian-guo, SUN Jing, HAN Jian-chao. Dynamics and reliability for rubbing rotor considering the characteristic of parameter’s random distribution[J]. Journal of Aerospace Power, 2014, (8): 1961-1967. doi: 10.13224/j.cnki.jasp.2014.08.025
shu

Dynamics and reliability for rubbing rotor considering the characteristic of parameter’s random distribution

doi: 10.13224/j.cnki.jasp.2014.08.025

  • 1. Science and Technology Laboratory on Reliability and Environmental Engineering, School of Reliability and Systems Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;

  • 2. Beijing Satellite Manufacturer, China Academy of Space Technology, China Aerospace Science and Technology Corporation, Beijing 100080, China

  • Received Date: 2013-05-07
  • Publish Date: 2014-08-28
    Abstract
  • A kind of modified Jeffcott rotor/stator system was studied, both stability characteristic and reliability characteristic were analyzed while considering the influence of parameter's random distribution. A reliability formula was deduced as well as the reliability index of 0.95 is calculated by using the FORM (first order reliability method) and CMC (Crude-Monte-Carlo) method respectively. In addition, the boundary of rubbing problem is determined due to the reliability requirement. Furthermore, the effects of various parameters on the rotor steady-state response and security domain were discussed as well as the sensitivity of parameters also been considered. Finally, the solution of general rotor/stator rubbing problem is derived in the space of three parameters(coefficient of friction, speed and clearance) corresponding to the specific requirement in practice.

     

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