An aircraft rotor assembly has a central hub and a plurality of rotor blades coupled to the hub for rotation with the hub about an axis, each blade having a Lock number of approximately 5 or greater. A lead-lag pivot for each blade is formed by a flexure coupling the associated blade to the hub. Each pivot is a radial distance from the axis and allows for in-plane lead-lag motion of the associated blade relative to the hub, each pivot allowing for in-plane motion from a neutral position of at least 1 degree in each of the lead and lag directions. Elastic deformation of the flexure produces a biasing force for biasing the associated blade toward the neutral position, and the biasing force is selected to achieve a first in-plane frequency of greater than 1/rev for each blade.


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    Titel :

    Rotor Assembly with High Lock-Number Blades


    Beteiligte:
    MILLER GARY (Autor:in) / STAMPS FRANK B (Autor:in) / CHOI JOUYOUNG JASON (Autor:in) / PARHAM JR THOMAS C (Autor:in) / EWING ALAN (Autor:in) / RAUBER RICHARD E (Autor:in)

    Erscheinungsdatum :

    2017-11-09


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge



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