The invention provides a helicopter blade embedded type radial motion shimmy damper. The helicopter blade embedded type radial motion shimmy damper comprises an upper shell, a lower shell and a sliding bearing for connecting the bottom of the upper shell and the top part of the lower shell, wherein a viscous-elastic damper and a counter weight are sequentially arranged inside the upper shell from top to bottom, and an adjusting screw, a line spring and a disc spring assembly are arranged inside the lower shell. According to the helicopter blade embedded type radial motion shimmy damper, the non-linear spring assembly formed by the disc spring and the line spring is integrated; when a helicopter rotor works, the non-linear spring assembly is compressed into a quai-zero-stiffness interval due to the action of centrifugal force, the static stiffness of the non-linear spring assembly is high and the dynamic stiffness of the non-linear spring assembly is low, and the spring-mass block vibration absorption system formed by the spring assembly and the counter weight can provide damping for shimmy motion in a wide frequency range.


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    Title :

    Helicopter blade embedded type radial motion shimmy damper


    Contributors:
    YANG WEIDONG (author) / LI RUIRUI (author) / YU ZHIHAO (author) / YANG DALIN (author)

    Publication date :

    2015-06-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / F16F SPRINGS , Federn



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