A flexbeam unit for a multi-blade rotor of a rotary wing aircraft, said flexbeam unit defining a predetermined number of torsion elements that are connectable with associated rotor blades, at least one torsion element comprising a flexbeam element having an associated longitudinal direction and comprising inner layers of a first fiber reinforced material that are embedded between outer layers of a second fiber reinforced material, said outer layers being composed of main plies comprising unidirectional fibers and said inner layers defining a cross section profile center in said associated longitudinal direction, said cross section profile center being composed of interconnected bias plies comprising fibers that are oriented transversely relative to said unidirectional fibers.


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    Title :

    FLEXBEAM UNIT FOR A BEARINGLESS OR A HINGE- AND BEARINGLESS MULTI-BLADE ROTOR OF A ROTARY WING AIRCRAFT


    Contributors:

    Publication date :

    2015-07-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Flexbeam unit for a bearingless or a hinge- and bearingless multi-blade rotor of a rotary wing aircraft

    PFALLER RUPERT / SCHULZ MARTIN / BODEMANN TOBIAS | European Patent Office | 2018

    Free access



    Flexbeam unit for a bearingless or a hinge- and bearingless multi-blade rotor of a rotary wing aircraft

    PFALLER RUPERT / SCHULZ MARTIN / BODEMANN TOBIAS | European Patent Office | 2015

    Free access