Five studies were performed under contract for concept definition of the Integrated Technology Rotor/Flight Research Rotor (ITR/FRR) Project. The purpose of these studies was to examine numerous hub design concepts with the potential of meeting the technical goals and specifications set for the ITR/FRR. Thirty-three concepts were proposed, including 21 bearingless designs. Although the level of effort in these studies was not equivalent to a preliminary design, many important design issues for advanced rotor nubs were examined, particularly with respect to bearingless-rotor designs. This papersummarizes the critical aspects of bearing less-hub design; they include the design of the flexbeam, the design of a torque structure for pitch control, and the means of augmenting rotor lead-lag damping. Representative designs from the concept definition studies are used to illuminate these design aspects. The capability of the designs to meet the ITR/FRR technical goals is also discussed.


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    Title :

    Design considerations for bearingless rotor hubs


    Additional title:

    Entwurfsbetrachtungen fuer lagerlose Rotornaben


    Contributors:

    Published in:

    Publication date :

    1983


    Size :

    28 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English




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