Jankoski, Radoslav (2019)
Stochastic Modeling of Magnetic Properties by Using Random Fields.
Technische Universität Darmstadt
Dissertation, Erstveröffentlichung
Kurzbeschreibung (Abstract)
This thesis is related to modeling uncertainties in magnetic properties of ferromagnetic materials which occur due to, e.g., manufacturing imperfections. The modeling procedure is based on the random field approach. The Karhunen-Loève expansion is used to approximate random fields with a minimal number of random variables in mean square sense. Two main cases are covered. First, magnetic hysteresis is taken into account and uncertainties are modeled by introducing the concept of multivariate random field. Second, spatial uncertainties of the magnetic behavior law are also treated. Benchmark examples such as a single phase transformer and a combined function magnet are used to illustrate how to propagate uncertainties from the input material data to the relevant output data.
Typ des Eintrags: | Dissertation | ||||
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Erschienen: | 2019 | ||||
Autor(en): | Jankoski, Radoslav | ||||
Art des Eintrags: | Erstveröffentlichung | ||||
Titel: | Stochastic Modeling of Magnetic Properties by Using Random Fields | ||||
Sprache: | Englisch | ||||
Referenten: | Schöps, Prof. Dr. Sebastian ; Römer, Prof. Dr. Ulrich | ||||
Publikationsjahr: | 27 Januar 2019 | ||||
Ort: | Darmstadt | ||||
Datum der mündlichen Prüfung: | 28 November 2018 | ||||
URL / URN: | https://tuprints.ulb.tu-darmstadt.de/8413 | ||||
Kurzbeschreibung (Abstract): | This thesis is related to modeling uncertainties in magnetic properties of ferromagnetic materials which occur due to, e.g., manufacturing imperfections. The modeling procedure is based on the random field approach. The Karhunen-Loève expansion is used to approximate random fields with a minimal number of random variables in mean square sense. Two main cases are covered. First, magnetic hysteresis is taken into account and uncertainties are modeled by introducing the concept of multivariate random field. Second, spatial uncertainties of the magnetic behavior law are also treated. Benchmark examples such as a single phase transformer and a combined function magnet are used to illustrate how to propagate uncertainties from the input material data to the relevant output data. |
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Alternatives oder übersetztes Abstract: |
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URN: | urn:nbn:de:tuda-tuprints-84137 | ||||
Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau | ||||
Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Teilchenbeschleunigung und Theorie Elektromagnetische Felder |
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Hinterlegungsdatum: | 10 Feb 2019 20:55 | ||||
Letzte Änderung: | 08 Mär 2019 09:39 | ||||
PPN: | |||||
Referenten: | Schöps, Prof. Dr. Sebastian ; Römer, Prof. Dr. Ulrich | ||||
Datum der mündlichen Prüfung / Verteidigung / mdl. Prüfung: | 28 November 2018 | ||||
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