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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2016, Vol. 37 ›› Issue (9): 2809-2819.doi: 10.7527/S1000-6893.2016.0021

• Electronics and Control • Previous Articles     Next Articles

Dynamics and control during spinning deployment for hub-and-spoke configured multi-tethered satellite formation

SU Fei, ZHAI Guang, ZHANG Jingrui, ZHANG Yao   

  1. School of Astronautics, Beijing Institute of Technology, Beijing 100081, China
  • Received:2015-09-15 Revised:2015-11-04 Online:2016-09-15 Published:2016-02-01
  • Supported by:

    National Natural Science Foundation of China (11102018); National High-tech Research and Development Program of China (2013AA7042018)

Abstract:

The deployment strategies for "hub-and-spoke" configured tethered satellite formation are investigated in circular orbit. Firstly, the deployment dynamics model is established based on Lagrangian method under some reasonable assumptions. The dynamical coupling between the attitude of central body and the tether length is analyzed, and then the deployment strategies for the cases with and without gravity gradient compensation are developed. By planning the deployment rate and angular velocity of central body, the successful deployments are achieved. Finally, some mathematical simulations for the proposed strategies are implemented. The simulation results indicate that using the proposed deployment strategies, the configuration can be maintained effectively and steadily.

Key words: tethered satellite formation, attitude of central body, gravity gradient force, spinning deployment, configuration stability

CLC Number: