A system for changing a shape a structural spar (44) includes, in an exemplary embodiment, a plurality of adjoining structural strips (52, 54) axially aligned to form the structural spar (44). At least one of the structural strips (52, 54) is formed from a shape memory alloy. The system also includes a temperature control system (56) to control a temperature of the at least one shape memory alloy strip (54). Heat applied to the at least one shape memory alloy strip (54) causes the structural spar (44) to twist or bend.


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    Title :

    Shape memory alloy active spars for blade twist


    Additional title:

    Aktivholme mit Formspeicherlegierung für Schaufelverdrehung
    Longerons actifs en alliage à mémoire de forme pour torsion de pale


    Contributors:

    Publication date :

    2020-07-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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