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author:

Zhu, An (Zhu, An.) [1] | Chen, Li (Chen, Li.) [2] (Scholars:陈力)

Indexed by:

EI PKU CSCD

Abstract:

The smoke generated by satellite during the process of position and attitude adjustment is easily attached to the solar panel. If the smoke is not cleaned regularly, it will lead to a decrease in the power supply capacity. Therefore, using the space manipulator to implement the task of cleaning the solar panels was studied. Firstly, the dynamic mode of the space manipulator system is established by Lagrange. Then, to control the position and attitude of the cleaning device at the end of the manipulator, the dynamic model is converted to the inertial space form based on the kinematics relationship. After, the impedance model is established according to the dynamic relationship between the position and output force of the cleaning device based on the impedance control principle to ensure stable and accurate control of the output force. In order to prevent the sudden change of the output force from damaging the solar panel due to the sudden change of the system state during the switching of each control phase of the cleaning operation, a full state constraint control strategy that the uncertain system is fitted by RBF neural network is proposed based on the barrier Lyapunov function. And on this basis, to achieve high-precision position and attitude control of the satellite and the cleaning device, the virtual control force principle is used to modify the expected trajectory of the design, so that the flexible vibration of the solar panel can be suppressed. Finally, the stability of the system is proved by the Lyapunov theorem, and the effectiveness of the proposed control strategy is verified by simulation analysis. The results show that the output force control accuracy of the cleaning device is better than 0.5 N, the position and attitude control accuracy of the satellite and the cleaning device are better than 0.1o and 10-3 m. © 2023 Chinese Journal of Theoretical and Applied Mechanics Press. All rights reserved.

Keyword:

Attitude control Cleaning Manipulators Orbits Radial basis function networks Satellites Smoke Solar concentrators Solar radiation Solar sails Spacecraft equipment System stability Tracking (position)

Community:

  • [ 1 ] [Zhu, An]School of Energy and Mechanical Engineering, Jiangxi University of Science and Technology, Nanchang; 330013, China
  • [ 2 ] [Chen, Li]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350108, China

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Source :

Chinese Journal of Theoretical and Applied Mechanics

ISSN: 0459-1879

CN: 11-2062/O3

Year: 2023

Issue: 11

Volume: 55

Page: 2624-2635

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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