Resonant actuation concept for the manipulation of upper turbulent boundary layer
Conference: MikroSystemTechnik 2015 - MikroSystemTechnik Kongress 2015
10/26/2015 - 10/28/2015 at Karlsruhe, Deutschland
Proceedings: MikroSystemTechnik 2015
Pages: 4Language: englishTyp: PDF
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Authors:
Mansoor, M.; Köble, S.; Goldschmidtböing, F.; Woias, P. (Universität Freiburg, IMTEK, Lehrstuhl für Konstruktion von Mikrosystemen, Georges-Köhler-Allee 102, 79110 Freiburg, Deutschland)
Abstract:
This paper presents the design, fabrication and applications of a smart resonant actuator developed for the manipulation of large scale coherent structures in the upper turbulent boundary layer of airfoils. The actuated membrane operates in resonance to achieve high stroke at high frequencies. The constructed design has shown to experimentally achieve a stroke of 700 mm at frequencies in the range of 1:6 kHz. Furthermore, a theoretical model is introduced to describe the non-linear resonant oscillations of the airfoil surface.