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High speed analysis of free flights with a parabolic thruster

Scharring, Stefan and Eckel, Hans-Albert and Röser, Hans-Peter (2009) High speed analysis of free flights with a parabolic thruster. In: AIP Conference Proceedings, 1230, pp. 77-88. American Institute of Physics, Melville, NY. 6th International Symposium on Beamed Energy Propulsion, 01.-05. Nov. 2009, Scottsdale, Arizona, USA. ISBN 978-0-7354-0774-9.

Full text not available from this repository.

Abstract

A laser-based range finder with high temporal resolution, synchronized with the laser burst, is employed for fast on-site analysis of pulsed free flights. Additional high speed recordings from two different angles of view allow for full 3D-reconstruction of the trajectory and calibration of the range finder data. This reveals the whole dynamics of the flyer including the lateral and angular impulse coupling components as well as information on the detonation process. The employment of an ignition pin enhances the reproducibility of the momentum coupling due to a more reliable plasma ignition during the flight. The impact of initial lateral offset is studied and shows beam-riding properties of the parabolic craft within a small range. Back-driving forces are derived and compared with the theoretical model. The flight stability is evaluated with respect to the minimization and compensation of the lateral and angular momentum in a hovering experiment. Stable laser acceleration ranges up to 3 m altitude. Ballistic free flights close to the laboratory ceiling at 7.8 m are reported.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:High speed analysis of free flights with a parabolic thruster
Authors:
AuthorsInstitution or Email of Authors
Scharring, Stefanstefan.scharring@dlr.de
Eckel, Hans-Alberthans-albert.eckel@dlr.de
Röser, Hans-PeterInstitut für Raumfahrtsysteme, Universität Stuttgart
Date:2009
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Volume:1230
Page Range:pp. 77-88
Editors:
EditorsEmail
Phipps, ClaudePhotonic Associates, LLC
Komurasaki, KimiyaThe University of Tokyo
Sinko, JohnOberlin
Publisher:American Institute of Physics, Melville, NY
Series Name:Beamed Energy Propulsion
ISBN:978-0-7354-0774-9
Status:Published
Keywords:Laser propulsion, Free flight experiments, Lightcraft, Repetition rate, Impulse coupling coefficient, High speed analysis.
Event Title:6th International Symposium on Beamed Energy Propulsion
Event Location:Scottsdale, Arizona, USA
Event Type:international Conference
Event Dates:01.-05. Nov. 2009
Organizer:American Institute of Beamed Energy Propulsion
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Stefan Scharring
Deposited On:13 Nov 2009 09:48
Last Modified:28 Jul 2010 10:42

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