An apparatus for suppressing vibration of a helicopter blade is disclosed. The apparatus for suppressing vibration of the helicopter blade according to the present invention comprises a blade fixing part for blades having different natural frequencies and coupled to a rotor system of a helicopter. According to the present invention, since only the blade fixing part is deformed to prevent vibration between blades, easy application to all helicopters is possible. In addition, since only the blade fixing part is deformed, a change in overall lift or weight balance can be almost ignored. As a result, vibration can be removed by 90% to the maximum by suppressing resonance between blade natural frequencies.

    L'invention concerne un appareil destiné à limiter les vibrations d'une pale d'hélicoptère. L'appareil de limitation des vibrations de la pale d'hélicoptère selon la présente invention comporte une partie de fixation de pale destinée à des pales présentant des fréquences naturelles différentes et couplée à un système de rotor d'un hélicoptère. Selon la présente invention, étant donné que seule la partie de fixation de pale est déformée pour empêcher une vibration entre les pales, une application aisée à tous les hélicoptères est possible. De plus, étant donné que seule la partie de fixation de pale est déformée, une variation de la portance ou du bilan de poids de l'ensemble peut quasiment être négligée. Il s'ensuit qu'un maximum de 90% des vibrations peut être éliminé en limitant la résonance entre les fréquences naturelles des pales.

    헬리콥터 블레이드의 진동 억제 장치가 개시된다. 본 발명에 의한 헬리콥터 블레이드의 진동 억제 장치는, 헬리콥터의 로터 시스템에 결합되는 각 블레이드의 고유진동수가 서로 다른 블레이드 고정부를 포함한다. 본 발명에 따르면, 블레이드 간 진동을 방지하기 위해 블레이드 고정부만을 변형시키므로 모든 헬리콥터에 용이하게 적용할 수 있다. 또한, 블레이드 고정부만을 변형시키므로 전체적인 양력이나 무게 밸런스의 변화를 거의 무시할 수 있다. 결국, 블레이드 고유진동수 간의 공진을 억제함으로써 진동을 최대 90% 까지 소멸시킬 수 있다.


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    Title :

    APPARATUS FOR SUPPRESSING VIBRATION OF HELICOPTER BLADE


    Additional title:

    APPAREIL DE LIMITATION DES VIBRATIONS D'UNE PALE D'HÉLICOPTÈRE
    헬리콥터 블레이드의 진동 억제 장치


    Contributors:

    Publication date :

    2018-08-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / F16F SPRINGS , Federn



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