Show simple item record

dc.contributor.authorMurphy, Jonathan Rodgersen_US
dc.date.accessioned2013-01-17T22:06:11Z
dc.date.available2013-01-17T22:06:11Z
dc.date.issued2012-11-13en_US
dc.identifier.urihttp://hdl.handle.net/1853/45946
dc.description.abstractMotivated by an electric power portfolio selection problem, a sampling method is developed for simulation-based robust design that builds on existing multi-objective statistical improvement methods. It uses a Bayesian surrogate model regressed on both design and noise variables, and makes use of methods for estimating epistemic model uncertainty in environmental uncertainty metrics. Regions of the design space are sequentially sampled in a manner that balances exploration of unknown designs and exploitation of designs thought to be Pareto optimal, while regions of the noise space are sampled to improve knowledge of the environmental uncertainty. A scalable test problem is used to compare the method with design of experiments (DoE) and crossed array methods, and the method is found to be more efficient for restrictive sample budgets. Experiments with the same test problem are used to study the sensitivity of the methods to numbers of design and noise variables. Lastly, the method is demonstrated on an electric power portfolio simulation code.en_US
dc.publisherGeorgia Institute of Technologyen_US
dc.subjectEngineering designen_US
dc.subjectRobust designen_US
dc.subjectExpected improvementen_US
dc.subjectMulti objective optimizationen_US
dc.subjectBayesian modelsen_US
dc.subjectElectric power portfoliosen_US
dc.subjectDesign of experimentsen_US
dc.subject.lcshMathematical optimization
dc.subject.lcshSimulation methods
dc.titleA robust multi-objective statistical improvement approach to electric power portfolio selectionen_US
dc.typeDissertationen_US
dc.description.degreePhDen_US
dc.contributor.departmentAerospace Engineeringen_US
dc.description.advisorCommittee Chair: Mavris, Dimitri; Committee Member: Duncan, Scott; Committee Member: Ender, Tommer; Committee Member: German, Brian; Committee Member: Paredis, Chrisen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record