The present invention refers to a multi-spar torsion box structure 1 comprising a plurality of spars of composite material arranged to form a multi-cell structure with two or more cells extending span-wise at the torsion box, and upper and lower skin covers of composite material respectively joined to upper and lower surfaces of the multi-cell structure. The structure further comprises at least one belt-like reinforcing element 20 extending on the outer perimeter of the torsion box, and fixed to the upper and lower surfaces of the multi-cell structure, and transversely arranged with respect to the span-wise direction of the torsion box. The belt-like reinforcing element is made of a metallic or a composite material. The invention can advantageously be used in the manufacture of aircrafts lifting surfaces, such as horizontal tail planes (HTP) or wings.


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    Title :

    MULTI-SPAR TORSION BOX STRUCTURE


    Additional title:

    MEHRHOLMTORSIONSKASTENSTRUKTUR
    STRUCTURE DE CAISSON DE TORSION MULTI-POTEAU



    Publication date :

    2016-11-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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