Volume 23 Issue 8
Aug.  2008
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QIAN Cheng-shan, WU Qing-xian, JIANG Chang-sheng, ZHOU Li. Flight control for an aerospace vehicle's reentry attitude based on thrust of reaction jets[J]. Journal of Aerospace Power, 2008, 23(8): 1546-1552.
Citation: QIAN Cheng-shan, WU Qing-xian, JIANG Chang-sheng, ZHOU Li. Flight control for an aerospace vehicle's reentry attitude based on thrust of reaction jets[J]. Journal of Aerospace Power, 2008, 23(8): 1546-1552.

Flight control for an aerospace vehicle's reentry attitude based on thrust of reaction jets

  • Received Date: 2007-08-03
  • Rev Recd Date: 2008-04-08
  • Publish Date: 2008-08-28
  • The problems concerning an aerospace vehicle's(ASV) atmospheric reentry flight attitude control system were researched.During reentry through the atmosphere,the control moment is generated by thrusters of the reaction control system(RCS) to control attitudes of the ASV,and to compensate for the shortage of aero-surfaces that fail to offer enough moment because of the partially or completely lost efficiency.Along with the increase in air density,aero-surfaces gradually intervene the control system,and the RCSdrops out of use.Because the control torque is determined by the fast loop controller and the torque is assigned to actuators by the control allocation algorithms,a multi-model switching control method based on T-Sfuzzy control is proposed and is employed to design the controller for the fast-loop such that the required virtual control input is tracked and the actuators' chattering is reduced.Therefore,the control input is softened.The effectiveness of the proposed method is demonstrated by the simulation results.

     

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