AbstractThis 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.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Neural optimal control of flexible spacecraft slew maneuver


    Contributors:

    Published in:

    Acta Astronautica ; 55 , 10 ; 817-827


    Publication date :

    2004-04-08


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Neural optimal control of flexible spacecraft slew maneuver

    Nayeri, M.Reza Dehghan | Online Contents | 2004


    Slew Maneuver Constraints for Agile Flexible Spacecraft

    Marshall, Michael A. / Pellegrino, Sergio | AIAA | 2023


    Slew Maneuver Constraints for Agile Flexible Spacecraft

    Marshall, Michael / Pellegrino, Sergio | AIAA | 2023