This paper addresses the problem of simulation and stabilization of the yaw motions of a cargo container slung load. The study configuration is a UH-60 helicopter carrying a 6ft x 6 ft x 8 ft CONEX container. This load is limited to 60 KIAS in operations and flight testing indicates that it starts spinning in hover and that spin rate increases with airspeed. The simulation reproduced the load yaw motions seen in the flight data after augmenting the load model with terms representing unsteady load yaw moment effects acting to reinforce load oscillations, and augmenting the hook model to include yaw resistance at the hook. The use of a vertical fin to stabilize the load is considered. Results indicate that the CONEX airspeed can be extended to 110 kts using a 3x5 ft fin.


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    Titel :

    Modeling and Simulation of a Helicopter Slung Load Stabilization Device


    Beteiligte:

    Kongress:

    American Helicopter Society 58th Annual Forum ; 2002 ; Montreal, Canada


    Erscheinungsdatum :

    01.01.2002


    Medientyp :

    Preprint


    Format :

    Keine Angabe


    Sprache :

    Englisch




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