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Pelaez Alvarez
Jesus
Dynamic stability of electrodynamic tethers in inclined elliptical orbits
byncnd
pub
 astronomia
 aeronautica
restricted
For a circular orbit, the local vertical rotates uniformly about the orbit normal, and it is a stable equilibrium position for, basically, any tether. For an elliptical orbit, however, the local vertical does not rotate uniformly and it is no longer an equilibrium position for the tether: the librations dynamics become excited even if the tether is left at rest along the local vertical. Instead of stable equilibrium positions, the governing equations have periodic solutions. For an electrodynamic tether, the equilibrium positions along the local vertical do not exist even in the circular case. Using simple models to describe the Earth magnetic ?eld and the tether current, the governing equations also have periodic solutions instead of equilibrium positions. The goal of this paper is to analyze the e?ects of the combined action of these two forcing terms: the eccentricity of the orbit and the electrodynamic forces. We detect new periodic solutions and analyze their stability properties, which provide the dynamic stability of the system.
published
2003
Advances in the Astronautical Sciences
116
PartI
595614
10.2514/1.6685
Aeronauticos
Aeronaves_2014
TRUE
10816003

MINECO
BFM20013663
Estabilidad y Simulación Dinámica de Tethers