Libration control of bare electrodynamic tether for three-dimensional deployment
- 30 Downloads
Various promising applications of electrodynamic tether have been proposed for space missions over the past decades. A crucial issue of these missions is to deploy an electrodynamic tether under a rapid and stable state. This paper aims to stabilize the libration motions of a bare electrodynamic tether during its three-dimensional deployment. The tethered system under consideration consists of a main-satellite and a sub-satellite connected to each other through a bare electrodynamic tether. A widely used dumbbell assumption considering the tether as rigid and inflexible is adopted to facilitate the dynamic modeling and analysis of the tethered system. A pair of active control laws is synthesized by simultaneously regulating the electric current and tether tension to achieve an efficient stabilization of the three-dimensional libration of the bare electrodynamic tether in the deployment process. Moreover, comparisons of three groups of numerical simulations are performed to evaluate the in uences of orbital inclinations and geomagnetic field models and the performance of the active control laws.
Keywordsbare electrodynamic tether deployment three-dimensional libration control
This work was supported by the National Natural Science Foundation of China (Grant No. 11772150), by the Civil Aerospace Pre-research Project of China, and by the Natural Science Foundation of Hunan Province (Grant No. 2016JJ3141).
- Colombo, G. Orbital transfer and release of tethered payloads. NASA Report, NASA–CR–170779, 1983.Google Scholar
- Cartmell, M., Ziegler, S. Experimental scale model testing of a motorised momentum exchange propulsion tether. In: Proceedings of the 37th Joint Propulsion Conference and Exhibit, 2001, AIAA: 3914.Google Scholar
- Mantri P. Deployment dynamics of space tether systems. Ph.D. Dissertation. North Carolina State University, 2007.Google Scholar
- Hoyt, R., Slostad, J., Barnes, I., Voronka, N., Lewis, M. Cost-effective end-of-mission disposal of LEO microsatellites: The Terminator Tape. In: Proceedings of the 24th Annual AIAA/USU Conference on Small Satellites, Technical Session X: Mission Enabling Technologies 1, 2010.Google Scholar
- Anguero V.M, Adamo R.C. Space applications of spindt cathode field emission arrays. In: Proceedings of the 6th Spacecraft Charging Conference, 1998: 347–352.Google Scholar
- Williams, P., Blanksby, C., Trivailo, P. The use of electromagnetic Lorentz forces as a tether control actuator. In: Proceedings of the 34th COSPAR Scientific Assembly, 2002.Google Scholar
- Pelaez, J., Lorenzini, E.C., Lopez-Rebollal, O., Ruiz, M. A new kind of dynamic instability in electrodynamic tethers. Advances in the Astronautical Sciences, 2000, 105: 1367–1386.Google Scholar
- Li, G.Q., Zhu, Z. Dynamic modeling of space electrodynamic tether system using the nodal position finite element and symplectic integration. In: Proceedings of the ASME 2014 International Mechanical Engineering Congress and Exposition, 2014.Google Scholar
- Davis, J. Mathematical modeling of Earth’s magnetic field. Technical Note, 2004: 1157–1163.Google Scholar