Analytic solutions for Tethered Satellite System (TSS) subject to internal and external torques undergoing a spin-up and spin-down maneuvers

Purpose – The purpose of this paper is to develop analytic solutions for a tethered satellite system (TSS) subjected to internal tether tension moment and external aerodynamic torque for spin-up and spin-down manoeuvres. Design/methodology/approach – Analytic solutions for TSS based on the approxima...

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Bibliographic Details
Published in:Aircraft Engineering and Aerospace Technology 2015-10, Vol.87 (6), p.514-520
Main Authors: Hong, Aaron Aw Teik, Varatharajoo, Renuganth, Romli, Fairuz
Format: Article
Language:English
Subjects:
Accuracy
Aerodynamic drag
Aerospace engineering
Angular velocity
Circular orbits
Dimensional analysis
Engineering
Equations of motion
Euler equations of motion
Exact solutions
Fresnel integrals
Inertia
Integrals
Maneuvers
Momentum transfer
Motion stability
Nonlinear equations
Orbits
Spacecraft
Studies
Systems analysis
Tethered satellites
Tethers
Torque
Trigonometric functions
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Summary:Purpose – The purpose of this paper is to develop analytic solutions for a tethered satellite system (TSS) subjected to internal tether tension moment and external aerodynamic torque for spin-up and spin-down manoeuvres. Design/methodology/approach – Analytic solutions for TSS based on the approximation of Euler’s equations of motion via Fresnel integrals and sine and cosine integrals. Test simulation was performed for two cases (spin-up and spin-down manoeuvres). The conclusion is based on graphical interpretation. Findings – The effects of angular velocities on X, Y and Z axes of the TSS under the influence of combined torques from internal tether tension and external aerodynamic drag influenced during spinning manoeuvres are shown graphically. Research limitations/implications – This research focuses only on a circular orbit, which is one of the simplest orbits without many variables taken into account such as flight path angle and true anomaly. It could get quite complex for other orbit types like elliptic and parabolic orbits. Practical implications – Practical implications include observing the stability rotational motion of TSS so as to perform a two-way payload exchange via momentum transfer. Originality/value – In this paper, analytic solutions for a torque motion of a TSS comprising non-linear Euler’s equations of motion are established for spin-up and spin-down manoeuvres.
ISSN:1748-8842
0002-2667
1758-4213
DOI:10.1108/AEAT-10-2014-0178