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Beam-Riding of a Parabolic Laser Lightcraft

Scharring, Stefan and Eckel, Hans-Albert and Röser, Hans-Peter (2011) Beam-Riding of a Parabolic Laser Lightcraft. International Journal of Aerospace Innovations, 3 (1), pp. 15-31. Sage Publications. ISSN 1757-2258.

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The impulse coupling characteristics of a parabolic laser-driven thruster (‘lightcraft’) are investigated in free flight experiments using a pulsed CO2 high energy laser. The analysis of 3D high speed recordings reveals lateral force components as well as angular momentum re-orientating the lightcraft towards the laser beam in the case of slight misalignment. Beam-riding properties are examined with respect to the initial lateral offset at the launch position. The results are compared with model data derived from raytracing analysis of the intensity distribution on the surface of an ignition pin which is located on the lightcraft’s symmetry axis. Based on model data, beam-riding abilities are characterized with respect to initial offset and inclination by means of Julia sets. The parameter space of tolerable misalignment is explored with respect to laser burst parameters and compared with experimental data.

Item URL in elib:https://elib.dlr.de/77389/
Document Type:Article
Title:Beam-Riding of a Parabolic Laser Lightcraft
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Scharring, Stefanstefan.scharring (at) dlr.deUNSPECIFIED
Eckel, Hans-AlbertHans-Albert.Eckel (at) dlr.deUNSPECIFIED
Röser, Hans-Peterroeser (at) irs.uni-stuttgart.deUNSPECIFIED
Date:March 2011
Journal or Publication Title:International Journal of Aerospace Innovations
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 15-31
Publisher:Sage Publications
Keywords:Laserantrieb, Stabilisierung, Hochgeschwindigkeitsanalyse, Julia-Menge
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Scharring, Stefan
Deposited On:19 Sep 2012 14:27
Last Modified:08 Mar 2018 18:37

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