Performance of bare-tether systems under varying magnetic and plasma conditions

Estes, Robert D.; Sanmartín Losada, Juan Ramón y Martínez-Sánchez, M. (2000). Performance of bare-tether systems under varying magnetic and plasma conditions. "Journal of Spacecraft and Rockets", v. 37 (n. 2); pp. 197-204. ISSN 0022-4650. https://doi.org/10.2514/2.3566.

Descripción

Título: Performance of bare-tether systems under varying magnetic and plasma conditions
Autor/es:
  • Estes, Robert D.
  • Sanmartín Losada, Juan Ramón
  • Martínez-Sánchez, M.
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Spacecraft and Rockets
Fecha: 2000
Volumen: 37
Materias:
Escuela: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Departamento: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Electrodynamic tethered systems, in which an exposed portion of the conducting tether itself collects electrons from the ionosphere, promise to attain currents of 10 A or more in low Earth orbit. For the first time, another desirable feature of such bare-tether systems is reported and analyzed in detail: Collection by a bare tether is relatively insensitive to variations in electron density that are regularly encountered on each revolution of an orbit. This self-adjusting property of bare-tether systems occurs because the electron-collecting area on the tether is not fixed, but extends along its positively biased portion, and because the current varies as collecting length to a power greater than unity. How this adjustment to density variations follows from the basic collection law of thin cylinders is shown. The effect of variations in the motionally induced tether voltage is also analyzed. Both power and thruster modes are considered. The performance of bare-tether systems to tethered systems is compared using passive spherical collectors of fixed area, taking into consideration recent experimental results. Calculations taking into account motional voltage and plasma density around a realistic orbit for bare-tether systems suitable for space station applications are also presented.

Más información

ID de Registro: 26613
Identificador DC: http://oa.upm.es/26613/
Identificador OAI: oai:oa.upm.es:26613
Identificador DOI: 10.2514/2.3566
URL Oficial: http://arc.aiaa.org/doi/abs/10.2514/2.3566?journalCode=jsr
Depositado por: Biblioteca ETSI Aeronauticos
Depositado el: 26 May 2014 08:33
Ultima Modificación: 22 Sep 2014 11:42
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