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Near minimum-time trajectories for solar sails

Otten, M. and McInnes, C.R. (2001) Near minimum-time trajectories for solar sails. Journal of Guidance, Control and Dynamics, 24 (5). pp. 632-634. ISSN 0731-5090

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Abstract

SOLAR sailing has long been considered for a diverse range of future mission applications. As with other forms of low-thrust propulsion, trajectory optimization has been a focus of development activities. In particular, minimum-time solar-sail trajectories have been obtained by several authors for a range of mission applications. Almost all of these studies have used the Pontryagin principle of the calculus of variations to obtain minimum-time trajectories by the classical, indirect method (see, for example, Ref. 2). The indirect approach provides a continuous time history for the required solar sail steering angles. Only a few studies have used the competing direct approach, which recasts the task as a parameter optimization problem by discretizing the control variables. These studies have used many discrete segments for the sail steering angles to ensure a close approximation to the continuous steering angles provided by the indirect approach and hence a close approximation to the true minimum-time trajectory

Item type: Article
ID code: 6224
Keywords: solar sails, control systems, guidance systems, trajectories, Mechanical engineering and machinery, Motor vehicles. Aeronautics. Astronautics, Applied Mathematics, Control and Systems Engineering, Electrical and Electronic Engineering, Space and Planetary Science, Aerospace Engineering
Subjects: Technology > Mechanical engineering and machinery
Technology > Motor vehicles. Aeronautics. Astronautics
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
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Depositing user: Strathprints Administrator
Date Deposited: 10 Jun 2008
Last modified: 04 Sep 2014 14:30
URI: http://strathprints.strath.ac.uk/id/eprint/6224

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