Active Magnetic Bearing Design and Characterization for High Temperature Applications @bullet Pamela Petrucci: for Her Love, Her Support, for What I Learned from Her about Life and for Having Two Wonderful Children; Lucas

Abstract

This thesis is motivated by one of the largest markets: aviation. This market, in which competition and investments are extraordinary, requires constant technical improvements in order to increase its competitivness. Jet engines have an important influence on fuel consumption and servicing of airplanes, thus on the transportation cost. The present work was supported by the European Community [9]. This thesis investigates the use of active magnetic bearings for jet engines. It is expected that magnetic bearings could considerably reduce losses and service intervals in jet engines. The present work concentrates on the design and characterization an active magnetic bearing for applications at high temperature. The report begins with an introduction locating the accomplished work into the current economic and technical context. The advantages of such system are given, as well as the scientific contribution of the research which has been undertaken. An introduction to magnetics bearing is given, so that the key elements of the dimensioning of such a system are comprehensible for readers of all horizons. The maximum force produced by magnetic bearings is mainly limited by the heating related to the losses in the coils. A thermal model for high temperature magnetic bearings has been implemented. An experimental part allowed the validation of this model for a wide temperature range. The construction of a magnetic bearing requires various types of materials; soft magnetic materials, electrical conductors, electrical insulators as well as several fixation materials. Tests have been carried

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Cite this paper

@inproceedings{Kohler2006ActiveMB, title={Active Magnetic Bearing Design and Characterization for High Temperature Applications @bullet Pamela Petrucci: for Her Love, Her Support, for What I Learned from Her about Life and for Having Two Wonderful Children; Lucas}, author={Matthias Kohler and Suzanne Bolli and Florian Loesch and Ofer Shomer and Arie Elka and Ricardo Skibelsky and Hadar Raz}, year={2006} }