Title:
An evolving-requirements technology assessment process for advanced propulsion concepts

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dc.contributor.advisor Mavris, Dimitri N.
dc.contributor.author McClure, Erin Kathleen en_US
dc.contributor.committeeMember Porter, Alan
dc.contributor.committeeMember Schrage, Daniel P.
dc.contributor.committeeMember Soban, Danielle
dc.contributor.committeeMember Seng, Gary
dc.contributor.department Aerospace Engineering en_US
dc.date.accessioned 2006-09-01T19:32:46Z
dc.date.available 2006-09-01T19:32:46Z
dc.date.issued 2006-07-07 en_US
dc.description.abstract This dissertation investigates the development of a methodology suitable for the evaluation of advanced propulsion concepts. At early stages of development, both the future performance of these concepts and their requirements are highly uncertain, making it difficult to forecast their future value. A systematic methodology to identify potential advanced propulsion concepts and assess their robustness is necessary to reduce the risk of developing advanced propulsion concepts. Existing advanced design methodologies have evaluated the robustness of technologies or concepts to variations in requirements, but they are not suitable to evaluate a large number of dissimilar concepts. Variations in requirements have been shown to impact the development of advanced propulsion concepts, and any method designed to evaluate these concepts must incorporate the possible variations of the requirements into the assessment. In order to do so, a methodology had to do two things. First, it had to systemically identify a probabilistic distribution for the future requirements. Such a distribution would allow decision-makers to quantify the uncertainty introduced by variations in requirements. Second, the methodology must assess the robustness of the propulsion concepts as a function of that distribution. These enabling elements have been synthesized into new methodology, the Evolving Requirements Technology Assessment (ERTA) method. The ERTA method was used to evaluate and compare advanced propulsion systems as possible power systems for a hurricane tracking, High Altitude, Long Endurance (HALE) unmanned aerial vehicle (UAV). The problem served as a good demonstration of the ERTA methodology because conventional propulsion systems will not be sufficient to power the UAV, but the requirements for such a vehicle are still uncertain. en_US
dc.description.degree Ph.D. en_US
dc.format.extent 2948761 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/11555
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en_US
dc.subject Technology assessments en_US
dc.subject Simulated annealing
dc.subject Advanced propulsion concepts
dc.subject Cross impact analysis
dc.subject.lcsh Propulsion systems Design and construction en_US
dc.subject.lcsh Uncertainty (Information theory) en_US
dc.subject.lcsh Combinatorial probabilities en_US
dc.subject.lcsh Decision support systems en_US
dc.subject.lcsh Drone aircraft Design and construction en_US
dc.title An evolving-requirements technology assessment process for advanced propulsion concepts en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Mavris, Dimitri N.
local.contributor.corporatename Daniel Guggenheim School of Aerospace Engineering
local.contributor.corporatename Aerospace Systems Design Laboratory (ASDL)
local.contributor.corporatename College of Engineering
local.relation.ispartofseries Doctor of Philosophy with a Major in Aerospace Engineering
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relation.isOrgUnitOfPublication a348b767-ea7e-4789-af1f-1f1d5925fb65
relation.isOrgUnitOfPublication a8736075-ffb0-4c28-aa40-2160181ead8c
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
relation.isSeriesOfPublication f6a932db-1cde-43b5-bcab-bf573da55ed6
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