Asteroids have the characteristics of noncooperative, irregular gravity and complex terrain on the surface, which cause difficulties in successful landing for conventional landers. The purpose of this paper is to study the trajectory tracking problem of a multi-node flexible lander with unknown flexible coefficient and space disturbance.

    Design/methodology/approach

    To facilitate the stability analysis, this paper constructs a simplified dynamic model of the multi-node flexible lander. By introducing the nonlinear transformation, a concurrent learning-based adaptive trajectory tracking guidance law is designed to ensure tracking performance, which uses both real-time information and historical data to estimate the parameters without persistent excitation (PE) conditions. A data selection algorithm is developed to enhance the richness of historical data, which can improve the convergence rate of the parameter estimation and the guidance performance.

    Findings

    Finally, Lyapunov stability theory is used to prove that the unknown parameters can converge to their actual value and, meanwhile, the closed-loop system is stable. The effectiveness of the proposed algorithm is further verified through simulations.

    Originality/value

    This paper provides a new design idea for future asteroid landers, and a trajectory tracking controller based on concurrent learning and preset performance is first proposed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Concurrent learning-based trajectory tracking control of a novel multi-node flexible lander for asteroid missions


    Contributors:
    Chai, Jingxuan (author) / Mei, Jie (author) / Gong, Youmin (author) / Wu, Weiren (author) / Ma, Guangfu (author) / Zhao, Guoming (author)

    Published in:

    Publication date :

    2024-09-30


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Flexible multi-node lander decision-making method for asteroid exploration

    MEI JIE / CHAI JINGXUAN / MA GUANGFU et al. | European Patent Office | 2023

    Free access


    Trajectory design of multiple asteroid sample return missions

    Morimoto, M. / Yamakawa, H. / Yoshikawa, M. et al. | British Library Conference Proceedings | 2004


    A 2-D Trajectory Design Algorithm for Multiple Asteroid Flyby Missions

    Cataldi, Giuseppe / Marcuccio, Salvo | Springer Verlag | 2020


    EFFECTIVE TRAJECTORY OPTIMIZATION METHOD FOR KINETIC IMPACTOR FOR ASTEROID DEFLECTION MISSIONS

    Yamaguchi, Kohei / Inamori, Takaya / Miyata, Kikuko et al. | TIBKAT | 2021