Design and simulation of macro-fiber composite based serrated microflap for wind turbine blade fatigue load reduction
Document Type
Article
Publication Date
5-18-2018
Department
Department of Civil, Environmental, and Geospatial Engineering
Abstract
A Macro-Fiber Composite (MFC) based active serrated microflap is designed in this research for wind turbine blades. Its fatigue load reduction potential is evaluated in normal operating conditions. The force and displacement output of the MFC-based actuator are simulated using a bimorph beam model. The work done by the aerodynamic, centripetal and gravitational forces acting on the microflap were calculated to determine the required capacity of the MFC-based actuator. MFC-based actuators with a lever mechanical linkage are designed to achieve the required force and displacement to activate the microflap. A feedback control scheme is designed to control the microflap during operation. Through an aerodynamic-aeroelastic time marching simulation with the designed control scheme, the time responses of the wind turbine blades are obtained. The fatigue analysis shows that the serrated microflap can reduce the standard deviation of the blade root flapwise bending moment and the fatigue damage equivalent loads.
Publication Title
Materials Research Express
Recommended Citation
Sun, X.,
Dai, Q.,
&
Bilgen, O.
(2018).
Design and simulation of macro-fiber composite based serrated microflap for wind turbine blade fatigue load reduction.
Materials Research Express,
5(5), 055505-1-055505-14.
http://doi.org/10.1088/2053-1591/aac318
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/104
Publisher's Statement
©2018 IOP Publishing Ltd. Publisher’s version of record: https://doi.org/10.1088/2053-1591/aac318