2009 | OriginalPaper | Buchkapitel
Introduction and Survey
verfasst von : Gerhard Schweitzer
Erschienen in: Magnetic Bearings
Verlag: Springer Berlin Heidelberg
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In the first part of this introduction the basic function of the actively controlled electromagnetic bearing will be shown. It offers a novel way of solving classical problems of rotor dynamics by suspending a spinning rotor with no contact, wear and lubrication, and controlling its dynamic behavior. In a general sense such an Active Magnetic Bearing - AMB is a typical mechatronics product, and definitions of mechatronics will point to the knowledge base for successfully dealing with AMB. The history of AMB is briefly addressed: first applications of the electromagnetic suspension principle have been in experimental physics, and suggestions to use this principle for suspending transportation vehicles for high-speed trains go back to 1937. There are various ways of designing magnetic suspensions for a contact free support - the AMB is just one of them. A classification of the various methods is shown as a survey. The main characteristics of AMB, their advantages and drawbacks are listed, and finally, some examples of the application of AMB in research and industry are given.