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The effects of a realistic hollow cathode plasma contactor model on the simulation of bare electrodynamic tether systems

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dc.contributor.authorBlash, Derek M., author
dc.contributor.authorWilliams, John D., advisor
dc.contributor.authorBradley, Thomas H., committee member
dc.contributor.authorRobinson, Raymond S., committee member
dc.date.accessioned2007-01-03T06:10:11Z
dc.date.available2007-01-03T06:10:11Z
dc.date.issued2013
dc.description.abstractThe region known as Low-Earth Orbit (LEO) has become populated with artificial satellites and space debris since humanities initial venture into the region. This has turned LEO into a hazardous region. Since LEO is very valuable to many different countries, there has been a push to prevent further buildup and talk of even deorbiting spent satellites and debris already in LEO. One of the more attractive concepts available for deorbiting debris and spent satellites is a Bare Electrodynamic Tether (BET). A BET is a propellantless propulsion technique in which two objects are joined together by a thin conducting material. When these tethered objects are placed in LEO, the tether sweeps across the magnetic field lines of the Earth and induces an electromotive force (emf) along the tether. Current from the space plasma is collected on the bare tether under the action of the induced emf, and this current interacts with the Earth's magnetic field to create a drag force that can be used to deorbit spent satellites and space debris. A Plasma Contactor (PC) is used to close the electrical circuit between the BET and the ionospheric plasma. The PC requires a voltage and, depending on the device, a gas flow to emit electrons through a plasma bridge to the ionospheric plasma. The PC also can require a plasma discharge electrode and a heater to condition the PC for operation. These parameters as well as the PC performance are required to build an accurate simulation of a PC and, therefore, a BET deorbiting system. This thesis focuses on the development, validation, and implementation of a simulation tool to model the effects of a realistic hollow cathode PC system model on a BET deorbit system.
dc.format.mediumborn digital
dc.format.mediummasters theses
dc.identifierBlash_colostate_0053N_12093.pdf
dc.identifierETDF2013500361MCEN
dc.identifier.urihttp://hdl.handle.net/10217/81005
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectdeorbit
dc.subjectelectrodynamic tether
dc.subjecthollow cathode plasma contactor model
dc.subjectSimBETS
dc.subjectsimulation
dc.subjectsystems analysis
dc.titleThe effects of a realistic hollow cathode plasma contactor model on the simulation of bare electrodynamic tether systems
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineMechanical Engineering
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)

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