Conductive-tether design for de-orbiting from given altitude and inclination

Sanmartín Losada, Juan Ramón and Khan, Saker B. (2014). Conductive-tether design for de-orbiting from given altitude and inclination. In: "13th Spacecraft Charging Technology Conference", 23-27 jun., Pasadena, California.

Description

Title: Conductive-tether design for de-orbiting from given altitude and inclination
Author/s:
  • Sanmartín Losada, Juan Ramón
  • Khan, Saker B.
Item Type: Presentation at Congress or Conference (Article)
Event Title: 13th Spacecraft Charging Technology Conference
Event Dates: 23-27 jun.
Event Location: Pasadena, California
Title of Book: 13th Spacecraft Charging Technology Conference
Date: 2014
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

A bare tether with thin-tape cross section is both i) the most effective electrodinamic tether for given length and mass, and ii) capable of effective design for an arbitrary mission through its three disparate dimensions. It handily beats the fully insulated tether that exchanges current at both ends, a result resting in advantages of 2D current collection as against 3D collection; it has much greater perimeter than the round bare tether and much lower fatal debris-impact rate, leading to greatly faster de-orbiting and greatly higher probability of survival; and it only allows multi-line tethers reaching a few hundred lines to stand competitive. In selecting the disparate values of length L, width w, and thickness h for a de-orbit mission, performance involves three criteria: a) tether-tospacecraft mass ratio must be small; b) probability of survival against the debris environment must be high; and c) de-orbiting must be fast to reduce manoeuvres for avoiding catastrophic collisions with big active/passive satellites around. Beyond determining tether mass through the product Lwh, main dimension parameters affecting performance are L/h2li characterizing ohmic effects, and w determining electron collection. An algorithm for optimal selection of tape dimensions is elaborated.

More information

Item ID: 30375
DC Identifier: http://oa.upm.es/30375/
OAI Identifier: oai:oa.upm.es:30375
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 08 Jul 2014 08:46
Last Modified: 30 Sep 2014 12:27
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