Doctoral Dissertations

Title

Reduction of model dimension in nonlinear finite element approximations of electromechanical systems

Abstract

"A method to reduce the order of finite element based models of electromechanical components is presented. The development begins by expressing Maxwell's equations in differential form to establish a wave equation for an electromechanical device. A finite-element method is used to express the solution of the wave equation in the form of an ordinary differential equation. A preliminary reduction technique that has been documented in existing literature is applied to eliminate linearly dependent states and incorporate winding flux linkage as a state variable. This preliminary reduction eliminates all nodes that are located outside of iron core regions (i.e. only regions in which eddy current exist are preserved). Finally, using the technique proposed, a full FE model (with the preliminary reduction applied) is transformed into a user specified (or error determined) reduced order system using Empirical Eigenvectors (EE)"--Abstract, leaf iii.

Department(s)

Electrical and Computer Engineering

Degree Name

Ph. D. in Electrical Engineering

Publisher

University of Missouri--Rolla

Publication Date

Summer 2004

Pagination

xiv, 164 leaves

Note about bibliography

Includes bibliographical references (leaves 161-163).

Rights

© 2004 Scott Patrick Rutenkroger, All rights reserved.

Document Type

Dissertation - Citation

File Type

text

Language

English

Library of Congress Subject Headings

Eigenvectors
Eigenvalues
Electromechanical devices
Finite element method
Mathematical models

Thesis Number

T 8550

Print OCLC #

62162460

Link to Catalog Record

Full-text not available: Request this publication directly from Missouri S&T Library or contact your local library.

http://laurel.lso.missouri.edu/record=b5380044~S5

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