Magnetic self-field effects on bare-tether current collection

Sanmartín Losada, Juan Ramón y Estes, Robert D. (2001). Magnetic self-field effects on bare-tether current collection. En: "7th Spacecraft Charging Technology Conference", 23-27 apr, Noordwijk. ISBN 92-9092-745-3.

Descripción

Título: Magnetic self-field effects on bare-tether current collection
Autor/es:
  • Sanmartín Losada, Juan Ramón
  • Estes, Robert D.
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 7th Spacecraft Charging Technology Conference
Fechas del Evento: 23-27 apr
Lugar del Evento: Noordwijk
Título del Libro: A spacecraft charging Odyssey : proceedings of the spacecraft charging technology conference
Fecha: 2001
ISBN: 92-9092-745-3
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

It has been recently suggested that the magnetic field created by the current in a bare tether could sensibly reduce its electron collection capability in the magnetised ionosphere, a region of closed magnetic surfaces disconnecting the cylinder from infinity. In this paper, the ohmic voltage drop along the tether is taken into account in considering self-field effects. Separate analyses are carried out for the thrust and power generation and drag modes of operation, which are affected in different ways. In the power generation and drag modes, bias decreases as current increases along the tether, starting at the anodic, positively-biased end (upper end in the usual, eastward-flying spacecraft); in the thrust mode of operation, bias increases as current increases along the tether, starting at the lower end. When the ohmic voltage drop is considered, self-field effects are shown to be weak, in all cases, for tape tethers, and for circular cross-section tethers just conductive in a thin outer layer. Self-field effects might become important, in the drag case only, for tethers with fully conductive cross sections that are unrealistically heavy.

Más información

ID de Registro: 25610
Identificador DC: http://oa.upm.es/25610/
Identificador OAI: oai:oa.upm.es:25610
Depositado por: Biblioteca ETSI Aeronauticos
Depositado el: 25 Abr 2014 10:00
Ultima Modificación: 22 Sep 2014 11:37
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