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Smart Trailing Edges for Wind Turbines

[+] Author Affiliations
Johannes Riemenschneider, Martin Pohl

German Aerospace Center (DLR), Braunschweig, Germany

Róbert Ungurán, Vlaho Petrović, Martin Kühn

Carl von Ossietzky University of Oldenburg, Oldenburg, Germany

Ayan Haldar, Hinesh Madhusoodanan, Eelco Jansen, Raimund Rolfes

Leibniz Universität Hannover, Hannover, Germany

Paper No. SMASIS2018-7916, pp. V001T04A001; 11 pages
doi:10.1115/SMASIS2018-7916
From:
  • ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation
  • San Antonio, Texas, USA, September 10–12, 2018
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-5194-4
  • Copyright © 2018 by ASME

abstract

In order to reduce the “cost of energy” for wind turbines it is an ongoing trend to increase the rotor diameter, which increases fatigue loads in the blade root area. Thus, a critical prerequisite for increased rotor diameter is the reduction of loads, which can be utilized by passive and active measures. This paper is giving an overview of current research work towards the use of a flexible trailing edge for load reduction as it is being pursued in the German national SmartBlades project. The active trailing edge is designed to change the lift of the outer blade in a way to counteract sudden changes caused by gusts or wind shear. Areas that are covered include the simulation towards the load reduction potential of such flexible trailing edges, the structural design of the trailing edge itself as a compliant mechanism, its experimental validation and fatigue investigation as well as multistable approaches for the design of such trailing edge flaps.

Copyright © 2018 by ASME
Topics: Wind turbines

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