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A Piezo-Actuated Slot Lip for active High Lift

Zander, Martin and Behr, Christian and Sinapius, Michael and Wierach, Peter (2013) A Piezo-Actuated Slot Lip for active High Lift. In: SFB 880 - Fundamentals of high-lift for future commercial aircraft Niedersächsiches Forschungszentrum für Luftfahrt - Forschungsbericht 2013-03. Technische Universität Braunschweig. ISBN 978-3-928628-63-1.

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A concept of a piezo-actuated slot lip, applicable to airfoils with active high lift and flow control, is presented in this article. In this manner the mass flow of blown out compressed air in a high lift configuration has to be controlled. The actuation device itself opens, closes and oscillates (pulses) the blow out slot while demanding requirements, concerning size, airfoil, loads and voltage, have to be met. A piezo ceramic d33-stack actuator, operating at low voltage levels is being elaborated as an adequate actuation system. The actuator is embedded in a metal substrate as a bending actuator for basic experiments in a water tunnel. Thereby the compact architecture, its robustness, the feasible high strain rates at low voltages and the good controllability play key roles for success. Further development steps are the qualification for water environment and the integration in a larger laminate structure, as a combined sensor-actuator system. The article reports the development process from design to prototype fabrication and the experiments of the first mechanical functional demonstrator. A detailed description of the overall design concept for the aspired piezo-actuated slot lip is elucidated. Moreover, current experimental results which have been obtained in a test stand characterizing the actuation capabilities are presented and discussed. Conclusions with an outlook complete the overview.

Item URL in elib:https://elib.dlr.de/102115/
Document Type:Contribution to a Collection
Title:A Piezo-Actuated Slot Lip for active High Lift
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Zander, MartinMartin.Zander (at) dlr.dehttps://orcid.org/0000-0001-5972-2938
Behr, Christianc.behr (at) dlr.deUNSPECIFIED
Sinapius, Michaelm.sinapius (at) tu-braunschweig.deUNSPECIFIED
Wierach, PeterPeter.Wierach (at) dlr.deUNSPECIFIED
Date:March 2013
Journal or Publication Title:SFB 880 - Fundamentals of high-lift for future commercial aircraft
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
EditorsEmailEditor's ORCID iD
Radespiel, Rolfr.radespiel@tu-braunschweig.deUNSPECIFIED
Semaan, Richardr.semaan@tu-braunschweig.deUNSPECIFIED
Publisher:Technische Universität Braunschweig
Series Name:Niedersächsiches Forschungszentrum für Luftfahrt - Forschungsbericht 2013-03
Keywords:adaptive structures, smart materials, piezoelectric actuators
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Multifunctional Materials
Deposited By: Behr, Christian
Deposited On:14 Jan 2016 12:42
Last Modified:01 Dec 2018 19:52

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