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Parametric model and optimal control of solar sails with optical degradation

Dachwald, B. and Mengali, G. and Quarta, A.A. and Macdonald, M. (2006) Parametric model and optimal control of solar sails with optical degradation. Journal of Guidance, Control and Dynamics, 29 (5). pp. 1170-1178. ISSN 0731-5090

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Abstract

Solar-sail mission analysis and design is currently performed assuming constant optical and mechanical properties of the thin metalized polymer films that are projected for solar sails. More realistically, however, these properties are likely to be affected by the damaging effects of the space environment. The standard solar-sail force models can therefore not be used to investigate the consequences of these effects on mission performance. The aim of this paper is to propose a new parametric model for describing the sail film's optical degradation with time. In particular, the sail film's optical coefficients are assumed to depend on its environmental history, that is, the radiation dose. Using the proposed model, the optimal control laws for degrading solar sails are derived using an indirect method and the effects of different degradation behaviors are investigated for an example interplanetary mission.

Item type: Article
ID code: 7521
Keywords: space application, indirect method, modeling, medium effect, spacecraft, solar sail, optical activity, optimal control, Mechanical engineering and machinery, Motor vehicles. Aeronautics. Astronautics
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: 20 Feb 2009 12:40
Last modified: 04 Oct 2012 12:16
URI: http://strathprints.strath.ac.uk/id/eprint/7521

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