Electrodynamic Tether at Jupiter I: Capture operation and constraints

Sanmartín Losada, Juan Ramón and Charro, Mario and Lorenzini, Enrico C. and Garret, Henry B. and Bombardelli, Claudio and Bramanti, Cristina (2008). Electrodynamic Tether at Jupiter I: Capture operation and constraints. "IEEE Transactions on plasma science", v. 36 (n. 5); pp. 2450-2458. ISSN 0093-3813. https://doi.org/10.1109/TPS.2008.2002580.

Description

Title: Electrodynamic Tether at Jupiter I: Capture operation and constraints
Author/s:
  • Sanmartín Losada, Juan Ramón
  • Charro, Mario
  • Lorenzini, Enrico C.
  • Garret, Henry B.
  • Bombardelli, Claudio
  • Bramanti, Cristina
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on plasma science
Date: 2008
Volume: 36
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Tethered spacecraft missions to the Jovian system suit the use of electrodynamic tethers because: 1) magnetic stresses are 100 times greater than at the Earth; 2) the stationary orbit is one-third the relative distance for Earth; and 3) moon Io is a nearby giant plasma source. The (bare) tether is a reinforced aluminum foil with tens of kilometer length L and a fraction of millimeter thickness h, which collects electrons as an efficient Langmuir probe and can tap Jupiter’s rotational energy for both propulsion and power. In this paper, the critical capture operation is explicitly formulated in terms of orbit geometry and established magnetic and thermal plasma models. The design parameters L and h and capture perijove radius rp face opposite criteria independent of tape width. Efficient capture requires a low rp and a high L 3/2/h ratio. However, combined bounds on tether bowing and tether tensile stress, arising from a spin made necessary by the low Jovian gravity gradient, require a high rp and a low L 5/2/h ratio. Bounds on tether temperature again require a high rp and a low L 3/8/(tether emissivity)1/4 ratio. Optimal design values are discussed.

More information

Item ID: 21768
DC Identifier: http://oa.upm.es/21768/
OAI Identifier: oai:oa.upm.es:21768
DOI: 10.1109/TPS.2008.2002580
Official URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=4663148
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 28 Nov 2013 11:02
Last Modified: 01 Dec 2016 13:11
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