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New European Concept of Single Staged Rocket to launch nano-satellites in Low Earth Orbit (LEO)

Bozic, O. and Longo, J.M.A. and Giese, P. (2003) New European Concept of Single Staged Rocket to launch nano-satellites in Low Earth Orbit (LEO). In: Proceedings of the International Conference on Recent Advances in Space Technologies, pp. 50-55. International Conference on Recent Advances in Space Technologies, Istanbul (tr), 20.-22.11.2003. ISBN 0-7803-8142-4.

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Abstract

The possibility to launch small payloads into LEO by means of an electromagnetic railgun is the motivation of the present study. Here it is assumed that an electromagnetic railgun with barrel length of 180m is able to launch a 120mm diameter projectile at a speed of 6 km/s. In order to the payload achieves orbital motion and to compensate the velocity losses due to gravity and aerodynamic drag, a rocket engine which supplies the required velocity difference is integrated into the projectile structure. The development of such propelled projectile requires key technologies that could also benefit other industrial sectors. The paper presents the main concept and design aspects to be considered for such propelled projectile with special emphasis on: flight mechanics, aero-/thermodynamics, materials and propulsion characteristics. The aerodynamic form of the projectile is optimized to achieve minimum drag and lower heat loads. Launch angles and trajectory optimization analysis are carried out by means of 3 degree of freedom simulations (3DOF). Furthermore, three concurrent propulsions systems are here considered for the rocket engine: solid, liquid and hybrid propellants type. The results of analysis pointed that the most promising propulsion systems are: (I) hybrid engine based on hydrogen peroxide/wax propellants and (II) liquid engine based on hydrogen peroxide/hydrocarbon propellants. The structural mass is analyzed mostly on the basis of carbon fiber reinforced materials as well as classical aerospace metallic in small amounts. Finally, the paper gives a critical mark for the technical feasibility of small rockets for such missions.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2004,
Title:New European Concept of Single Staged Rocket to launch nano-satellites in Low Earth Orbit (LEO)
Authors:
AuthorsInstitution or Email of Authors
Bozic, O.UNSPECIFIED
Longo, J.M.A.UNSPECIFIED
Giese, P.UNSPECIFIED
Date:2003
Journal or Publication Title:Proceedings of the International Conference on Recent Advances in Space Technologies
Page Range:pp. 50-55
ISBN:0-7803-8142-4
Status:Published
Keywords:nano-satellite, one-stage-rocket, rail gun, hybrid-rocket-engine, mass optimization
Event Title:International Conference on Recent Advances in Space Technologies, Istanbul (tr), 20.-22.11.2003
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - Anlagen und Messtechnik (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Claudia Grant
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:30

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