Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

Explore

Stabilisation of the hyperbolic equilibrium of high area-to-mass spacecraft

Colombo, Camilla and Xu, Ming and McInnes, Colin (2012) Stabilisation of the hyperbolic equilibrium of high area-to-mass spacecraft. In: 63rd International Astronautical Congress, 2012-10-01 - 2012-10-05.

[img] PDF
Colombo_C_et_al_Pure_Stabilisation_of_the_hyperbolic_equilibrium_of_high_area_to_mass_spacecraft_Oct_2012.pdf - Preprint

Download (986kB)

Abstract

In this paper we propose the exploitation of anti-heliotropic orbits, corresponding to the hyperbolic solution of the J2 and solar radiation pressure dynamical system, as gateway orbits between the low-eccentricity orbits where atmospheric drag does not affect the motion and the high eccentricity orbits which enter in drag regime. The eccentricity can be maintained in the neighborhood of the unstable point by means of a controller preserving the Hamiltonian structure of the system. In this way, any initial eccentricity close to the equilibrium conditions will lead to a bound trajectory around the controlled elliptic equilibrium. By selecting the time the controller is turned off, one of the two unstable manifolds leaving the equilibrium point can be followed, leading the orbit to become circular of to increase its eccentricity until natural decay occurs.