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Gottfried Wilhelm Leibniz Universität Hannover Welfengarten 1 30167 Hannover, Germany http://www.uni-hannover.de
Contact Ms Dr. Stefanie Beier +49 511 7625342
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Gottfried Wilhelm Leibniz Universität Hannover

Neue Technik zur Schwingungsdämpfung einer Flugzeugturbine

Piezokeramiken machen Turbinenschaufeln sicherer und unempfindlicher

(PresseBox) (Hannover, )
Am Institut für Dynamik und Schwingungen der Leibniz Universität Hannover forschen Wissenschaftlerinnen, Wissenschaftler und Studierende seit Jahren erfolgreich auf dem Gebiet der Schwingungsdämpfung. Nun zeigt die Wirtschaft Interesse an einer neuen Methode zur Tilgung von unerwünschten Schwingungen in Flugzeugturbinen. Dabei kommen sogenannte Piezokeramiken zum Einsatz - Materialien, die sich ausdehnen, wenn ein elektrisches Feld angelegt wird. "Flugzeugturbinen stehen unter einer enormen Belastung", erklärt der Leiter des Instituts für Dynamik und Schwingungen, Prof. Jörg Wallaschek. "Die Turbinenschaufeln geraten in Schwingung, wodurch das Material geschwächt wird und die Turbine schließlich kaputt gehen kann."

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