Propellantless de orbiting of space debris by bare electrodynamic tethers

Sanmartín Losada, Juan Ramón; Kahn, Saker B.; Bombardelli, Claudio; Lorenzini, Enrico C.; Colombatti, Giacomo; Zanutto, Denis; Roussel, Jean-François; Sarrailh, Pierre; Williams, John D.; Metz, Garret E.; Thomas, James K.; Carrasco, José A.; García de Quirós, Francisco; Kroemer, Olaf; Rosta, Roland; Zoest, Tim van; Lasa, Joseba y Marcos, Jesús (2011). Propellantless de orbiting of space debris by bare electrodynamic tethers. En: "62nd International Astronautical Congress", 3-7 oct 2010, Cape Twon, Sudafrica.

Descripción

Título: Propellantless de orbiting of space debris by bare electrodynamic tethers
Autor/es:
  • Sanmartín Losada, Juan Ramón
  • Kahn, Saker B.
  • Bombardelli, Claudio
  • Lorenzini, Enrico C.
  • Colombatti, Giacomo
  • Zanutto, Denis
  • Roussel, Jean-François
  • Sarrailh, Pierre
  • Williams, John D.
  • Metz, Garret E.
  • Thomas, James K.
  • Carrasco, José A.
  • García de Quirós, Francisco
  • Kroemer, Olaf
  • Rosta, Roland
  • Zoest, Tim van
  • Lasa, Joseba
  • Marcos, Jesús
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 62nd International Astronautical Congress
Fechas del Evento: 3-7 oct 2010
Lugar del Evento: Cape Twon, Sudafrica
Título del Libro: 62nd International Astronautical Congress
Fecha: 2011
Materias:
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

A 3-year Project started on November 1 2010, financed by the European Commision within the FP-7 Space Program, and aimed at developing an efficient de-orbit system that could be carried on board by future spacecraft launched into LEO, will be presented. The operational system will deploy a thin uninsulated tape-tether to collect electrons as a giant Langmuir probe, using no propellant/no power supply, and generating power on board. This project will involve free-fall tests, and laboratory hypervelocity-impact and tether-current tests, and design/Manufacturing of subsystems: interface elements, electric control and driving module, electron-ejecting plasma contactor, tether-deployment mechanism/end-mass, and tape samples. Preliminary results to be presented involve: i) devising criteria for sizing the three disparate tape dimensions, affecting mass, resistance, current-collection, magnetic self-field, and survivability against debris itself; ii) assessing the dynamical relevance of tether parameters in implementing control laws to limit oscillations in /off the orbital plane, where passive stability may be marginal; iii) deriving a law for bare-tape current from numerical simulations and chamber tests, taking into account ambient magnetic field, ion ram motion, and adiabatic electron trapping; iv) determining requirements on a year-dormant hollow cathode under long times/broad emission-range operation, and trading-off against use of electron thermal emission; v) determining requirements on magnetic components and power semiconductors for a control module that faces high voltage/power operation under mass/volume limitations; vi) assessing strategies to passively deploy a wide conductive tape that needs no retrieval, while avoiding jamming and ending at minimum libration; vii) evaluating the tape structure as regards conductive and dielectric materials, both lengthwise and in its cross-section, in particular to prevent arcing in triple-point junctions.

Más información

ID de Registro: 26064
Identificador DC: http://oa.upm.es/26064/
Identificador OAI: oai:oa.upm.es:26064
Depositado por: Biblioteca ETSI Aeronauticos
Depositado el: 18 May 2014 08:33
Ultima Modificación: 01 Oct 2014 13:58
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