During the course of this contract the following research tasks were undertaken: A. Aerodynamics tasks which included Experimental Studies for Tip Vortex Core Modeling, Modification of Blade Tip Loading to Improve Hovering Figure of Merit, Prediction of Flow Around Blade Tips, Studies of Unsteady Rotor Aerodynamics and Studies of the Airframe Flowfield in Forward Flight. B. Structure tasks which included Structural Dynamic System Identification, Crashworthy Characteristics of Composite Rotorcraft Structures and Concepts for Stability Critical Airframe Structures. C. Aeroelasticity tasks which included Helicopter Vibration Suppression Techniques and Rotorcraft Aeroelastic Active Control Investigations.


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    Center of Excellence in Rotary Wing Technology

    O. Bauchau / M. Crespo Da Silva / M. Darlow et al. | NTIS | 1993




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    HALLADAY JAMES R / SHERIDAN PATRICK M / DOWNING MARSHALL W et al. | European Patent Office | 2020

    Free access