High performance airfoils with laminar airflow exhibit minimum drag and maximum lift, but tend to sudden stall due to flow separation at low air speed. This requires an increased approach speed of the aircraft, resulting in less steep approaches and a higher noise exposure of the surroundings. New active vortex generators, deployed only on demand at low speed, energizing the boundary layer of air flow and reducing flow separation, can help to overcome this critical situation. Active hybrid composites, combining the actuation capability of shape memory alloys (SMA) with the possibility of tailoring the compliance of fiber reinforced polymers (FRP) on the materials level, provide an active aerodynamic system with high lightweight potential and small space requirements. Being one of the first applications of active hybrid structures from SMA and FRP we will demonstrate the potential of this new technology with an integrated system of active vortex generators for a glider. In this contribution we present - the design process, based on a FE-model and careful characterization of the actuating SMA and the composite material - manufacturing relevant aspects for reliable series production - the testing of single vortex generators in lab scale under aerodynamic load - and an overview of the whole system.
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ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 18–20, 2017
Snowbird, Utah, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-5825-7
PROCEEDINGS PAPER
Active Vortex Generator Deployed on Demand by Active Hybrid Composites From Shape Memory Alloys and Fiber Reinforced Polymers Available to Purchase
Martin Gurka,
Martin Gurka
Institut für Verbundwerkstoffe, Kaiserslautern, Germany
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Sebastian Nissle,
Sebastian Nissle
Institut für Verbundwerkstoffe, Kaiserslautern, Germany
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Moritz Hübler,
Moritz Hübler
Institut für Verbundwerkstoffe, Kaiserslautern, Germany
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Max Kaiser
Max Kaiser
Institut für Verbundwerkstoffe, Kaiserslautern, Germany
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Martin Gurka
Institut für Verbundwerkstoffe, Kaiserslautern, Germany
Sebastian Nissle
Institut für Verbundwerkstoffe, Kaiserslautern, Germany
Moritz Hübler
Institut für Verbundwerkstoffe, Kaiserslautern, Germany
Max Kaiser
Institut für Verbundwerkstoffe, Kaiserslautern, Germany
Paper No:
SMASIS2017-3727, V001T08A001; 5 pages
Published Online:
November 9, 2017
Citation
Gurka, M, Nissle, S, Hübler, M, & Kaiser, M. "Active Vortex Generator Deployed on Demand by Active Hybrid Composites From Shape Memory Alloys and Fiber Reinforced Polymers." Proceedings of the ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies. Snowbird, Utah, USA. September 18–20, 2017. V001T08A001. ASME. https://doi.org/10.1115/SMASIS2017-3727
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