Formation flying reconfiguration manoeuvres via environmental forces in highly elliptical orbits |
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| Authors: | Rebecca La Norcia Dario Spiller Fabio Curti Christian Circi |
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| Institution: | 1. School of Aerospace Engineering, Sapienza University of Rome, Via Salaria 851, 00138 Rome, Italy;2. Department of Astronautical, Electrical and Energy Engineering, Sapienza University of Rome, Via Salaria 851, 00138 Rome, Italy |
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| Abstract: | A study on reconfiguration manoevres applied to a tetrahedral formation in highly elliptical orbits is proposed, by using a propellantless solution. The manoeuvring strategy consists in exploiting certain environmental forces, specifically those provided by solar radiation pressure and atmospheric drag, by actively controlling the satellites’ attitudes. Through inverse dynamics particle swarm optimization the optimal attitudes required for the manoeuvres are evaluated, whereas the configuration’s evolution is simulated by a high-fidelity orbital simulator. The goal of the reconfiguration problem is to find an optimal control in order for the four spacecraft to reach a desired configuration in a specified portion of orbit, where the desired configuration is evaluated by a shape and size geometric parameter. By increasing the manoeuvring time and the satellites’ area to mass ratio, all the case studies considered are successfully verified. |
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| Keywords: | Formation flying Highly elliptical orbits Simulation and optimization Particle swarm optimization |
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