The invention discloses an upper beam, a helicopter airframe adopting the upper beam and a helicopter. The upper beam is a U-shaped component formed by two straight rod parts which are parallel to each other and a bridge joint part for connecting one ends of the two straight rod parts. The airframe is of a damping structure formed by mutual connection of an upper frame and a tripod through an engine assembly and a damper, the upper frame is of a rigid structure formed by the upper beam, a front beam, an upper bearing beam, supporting rods and a tail pipe through two pairs of middle beams with five connecting supporting arms, and three of the supporting rods are connected with three of the middle beams. A gearbox is positioned on the upper bearing beam. The airframe has the beneficial effects of being simple in structure, easy to manufacture, cost-saving, light in weight, good in rigidity, excellent in damping performance, easy for disassembling, assembling and maintenance, and the like.


    Access

    Download


    Export, share and cite



    Title :

    Upper beam, helicopter airframe adopting same and helicopter


    Contributors:
    ZHANG WEI (author)

    Publication date :

    2015-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Helicopter airframe

    FINK AXEL / STEINDL CHRISTOPH | European Patent Office | 2018

    Free access

    Helicopter Airframe Fatigue Spectra Generation

    Krake, Luther | Trans Tech Publications | 2014


    Helicopter Airframe Fatigue Spectra Generation

    Krake, Luther | Tema Archive | 2014



    Crash Testing of Helicopter Airframe Fittings

    C. W. Clarke / W. Townsend / R. Boitnott | NTIS | 2004