ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2021, Vol. 42 ›› Issue (12): 324738-324738.doi: 10.7527/S1000-6893.2020.24738
• Electronics and Electrical Engineering and Control •
GUO Jia, PANG Zhaojun, YUE Shuai, DU Zhonghua
To enable better task accomplishment of space tethered-combination in space debris removal, we propose a de-orbit strategy using Bang-Bang thrust, which is closer to the engineering application. Firstly, a Bang-Bang controller with differential clearance is used to realize the Bang-Bang thrust acceleration of space tethered-combination. In the process of de-orbit using Bang-Bang thrust, the engine needs to be switched on and off repeatedly. Therefore, a new passive winch mechanism is designed to avoid the negative effects of engine switching. A sliding mode controller with input constraints is designed for radial thrust to suppress the in-plane swing of the tether-combination in the process of de-orbit, and the control is also realized by Bang-Bang thrust. The simulation results show that Bang-Bang thrust can achieve similar results with continuous thrust that suppress the in-plane swing angle in a narrow range. The de-orbit strategy can make space tethered-combination complete the mission that drag space debris to graveyard orbit on the basis of ensuring the attitude stabilization control.
space debris removal,
GUO Jia, PANG Zhaojun, YUE Shuai, DU Zhonghua. De-orbit strategy using Bang-Bang control for space tethered-combination[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(12): 324738-324738.