Abstract This chapter presents an overview of existing Gurney flap actuation concepts for rotorcraft applications as well as suggests a new concept applicable to airfoils with little space in the vicinity of airfoil toe. Kinematic and dynamic analysis of the mechanism is performed for the required flap motion pattern. A method of calculating maximum normal force acting on Gurney flap is proposed based on inverse dynamics approach. Piezoelectric actuator force-displacement characteristic and mass properties of mechanism parts are also accounted for in the calculations. A working mock-up of the blade section with active Gurney for wind tunnel testing is designed.


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    ACTIVE GURNEY FLAP

    European Patent Office | 2019

    Free access

    ACTIVE GURNEY FLAP

    European Patent Office | 2019

    Free access

    ACTIVE GURNEY FLAP

    BREWER PAUL R / SHORCOTT STEVEN / RAVAL REG R | European Patent Office | 2015

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    ACTIVE GURNEY FLAP

    European Patent Office | 2019

    Free access

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    BREWER PAUL R / RAVAL REG R / SHORCOTT STEVEN | European Patent Office | 2016

    Free access