Details
| Original language | English |
|---|---|
| Title of host publication | Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation |
| Publisher | American Society of Mechanical Engineers(ASME) |
| ISBN (electronic) | 9780791851944 |
| Publication status | Published - 2018 |
| Event | ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2018 - San Antonio, United States Duration: 10 Sept 2018 → 12 Sept 2018 |
Publication series
| Name | ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2018 |
|---|---|
| Volume | 1 |
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.
Keywords
- Flexible trailing edge, Load reduction, Morphing, Trailing edge flap, Wind turbine
ASJC Scopus subject areas
- Materials Science(all)
- Biomaterials
- Engineering(all)
- Civil and Structural Engineering
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Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation. American Society of Mechanical Engineers(ASME), 2018. (ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2018; Vol. 1).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Smart trailing edges for wind turbines
AU - Riemenschneider, Johannes
AU - Pohl, Martin
AU - Ungurán, Róbert
AU - Petrović, Vlaho
AU - Kühn, Martin
AU - Haldar, Ayan
AU - Madhusoodanan, Hinesh
AU - Jansen, Eelco
AU - Rolfes, Raimund
N1 - Funding information: At the same time increasing rotor blade lengths will increase the weight of the blade by r3, considering equal design. Soon this leads to increasingly critical loads at the blade root. Smart structures offer great opportunities for the reduction of such fatigue loads. This paper is presenting an approach for active flow manipulation which is investigated within the German national research project SmartBlades by DLR and its partners from Fraun-hofer IWES, as well as ForWind Oldenburg and Hannover as well as several industry partners like Enercon, GE Suzlon and Nordex and funded by the German Federal Ministry for Economic Affairs and Energy. The approach is the integration of a flexible trailing edge. A structural design is presented: 2 m span and 1 m chord . This research was carried out in the frame of the Smart-Blades and SmartBlades2 projects, funded by the German Federal Ministry for Economic Affairs and Energy (BMWi) based on a decision of the Parliament of the Federal Republic of Germany (grant numbers 0325601 A, C, D as well as 0324032 A, C, D).
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
KW - Flexible trailing edge
KW - Load reduction
KW - Morphing
KW - Trailing edge flap
KW - Wind turbine
UR - http://www.scopus.com/inward/record.url?scp=85057374469&partnerID=8YFLogxK
U2 - 10.1115/smasis2018-7916
DO - 10.1115/smasis2018-7916
M3 - Conference contribution
AN - SCOPUS:85057374469
T3 - ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2018
BT - Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation
PB - American Society of Mechanical Engineers(ASME)
T2 - ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2018
Y2 - 10 September 2018 through 12 September 2018
ER -