Print Email Facebook Twitter Solving the heliogyro’s inverse problem Title Solving the heliogyro’s inverse problem Author Heiligers, M.J. (TU Delft Astrodynamics & Space Missions) Guerrant, D. (Deep Space Systems Inc.) Lawrence, D (University of Colorado) Date 2016 Abstract A heliogyro is a solar sail concept that divides the solar sail membrane into a number of long, slender blades of film extended from a central hub, maintained in a flat state through spin-induced tension. The heliogyro can redirect and scale the solar radiation pressure (SRP) force and can achieve attitude control by twisting the blades, similar to a helicopter rotor. Different pitch profiles exist, including pitching the blades in a collective, cyclic or combined collective and cyclic manner. While the forward mapping, i.e., computing the SRP force and moment generated by the heliogyro for a given pitch profile, is straightforward, the inverse of the problem is much more complex. However, this inverse problem (finding the blades’ pitch that results in a desired SRP force and/or moment) is crucial for heliogyro mission design and operations. This paper therefore solves the inverse problem numerically: first, only for a desired SRP force or SRP moment and subsequently for the fully coupled inverse problem. The developed methods are subsequently applied to track a reference trajectory that corrects for injection errors into a solar sail Sun-Earth sub-L1 halo orbit.I. Introduction To reference this document use: http://resolver.tudelft.nl/uuid:a515b556-622a-4b06-8d94-8661b9167793 DOI https://doi.org/10.2514/6.2016-5334 ISBN 978-1-62410-445-9 Source AIAA/AAS Astrodynamics Specialist Conference: Long Beach, California, USA Event AIAA/AAS Astrodynamics Specialist Conference 2016, 2016-09-13 → 2016-09-16, Long Beach, United States Part of collection Institutional Repository Document type conference paper Rights © 2016 M.J. Heiligers, D. Guerrant, D Lawrence Files PDF 4_Conf_ASC2016_invProblem ... iogyro.pdf 12.45 MB Close viewer /islandora/object/uuid:a515b556-622a-4b06-8d94-8661b9167793/datastream/OBJ/view