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. Multi-Science Publishing. 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.
|Title:||Beam-Riding of a Parabolic Laser Lightcraft|
|Journal or Publication Title:||International Journal of Aerospace Innovations|
|In Open Access:||No|
|In ISI Web of Science:||No|
|Page Range:||pp. 15-31|
|Keywords:||Laserantrieb, Stabilisierung, Hochgeschwindigkeitsanalyse, Julia-Menge|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L AR - Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Laser Research and Technology|
|Institutes and Institutions:||Institute of Technical Physics|
|Deposited By:||Stefan Scharring|
|Deposited On:||19 Sep 2012 14:27|
|Last Modified:||26 Mar 2013 13:41|
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