Loading...
Send to Friend
 Bookmark
 Review List
  1. Neural optimal control of flexible spacecraft slew maneuver
Neural optimal control of flexible spacecraft slew maneuver
736 viewed

Neural optimal control of flexible spacecraft slew maneuver

Dehghan Nayeri, M. R

Neural optimal control of flexible spacecraft slew maneuver

Dehghan Nayeri, M. R ; Sharif University of Technology | 2004

736 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.actaastro.2004.04.002
  3. Publisher: 2004
  4. Abstract:
  5. This paper deals with the problem of optimal large-angle single-axis maneuvers of a flexible spacecraft with simultaneous vibration suppression of elastic modes. A spacecraft model with a cylindrical hub and one flexible appendage and tip mass is considered. Gravity gradient torque is considered as a disturbance torque. Multilayer perceptron neural networks are used to design a Neural Optimal Controller (NOC) for this multivariable non-linear maneuver. For NOC training, an off-line training procedure based on backpropagation through time algorithm is developed to minimize the general quadratic cost function in forward and backward pass stages. The proposed controller is also applicable to simultaneous multi-axis reorientation of a flexible spacecraft. Simulation results are presented to show that very fast reference pitch angle trajectory tracking and vibration suppression are accomplished. © 2004 Elsevier Ltd. All rights reserved
  6. Keywords:
  8. Source: Acta Astronautica ; Volume 55, Issue 10 , 2004 , Pages 817-827 ; 00945765 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0094576504001304