An advancing blade concept rotorcraft includes an airframe and a pylon assembly subject to vibration. The pylon assembly includes a dual rotor system having coaxially disposed top and bottom rotor assemblies that counter rotate relative to one another. The advancing blade concept rotorcraft includes a vibration isolation system including at least one pylon link coupled to the airframe and the pylon assembly. The pylon link includes a Liquid Inertia Vibration Eliminator unit operable to reduce transmission of the pylon assembly vibration to the airframe. The advancing blade concept rotorcraft includes active force generators adjacent to the pylon assembly. The active force generators include a first active force generator producing a force in a first direction and a second active force generator producing a force in a second direction to counteract multidirectional oscillations of the pylon assembly, thereby reducing vibration of the advancing blade concept rotorcraft.


    Access

    Download


    Export, share and cite



    Title :

    Vibration Isolation Systems for Advancing Blade Concept Rotorcraft



    Publication date :

    2020-08-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Vibration Isolation Systems for Advancing Blade Concept Rotorcraft

    FOSKEY CHRISTOPHER EDWARD / STAMPS FRANK BRADLEY / SMITH MICHAEL REAUGH | European Patent Office | 2018

    Free access

    Vibration isolation systems for advancing blade concept rotorcraft

    FOSKEY CHRISTOPHER EDWARD / STAMPS FRANK BRADLEY / SMITH MICHAEL REAUGH | European Patent Office | 2022

    Free access

    ADVANCING BLADE CONCEPT ROTORCRAFT WITH A VIBRATION ISOLATION SYSTEM

    FOSKEY CHRISTOPHER EDWARD / STAMPS FRANK BRADLEY / SMITH MICHAEL REAUGH | European Patent Office | 2019

    Free access

    Rotorcraft vibration isolation systems

    SMITH MICHAEL / STAMPS FRANK BRADLEY / LEE TAEOH et al. | European Patent Office | 2017

    Free access

    ROTORCRAFT VIBRATION ISOLATION SYSTEMS

    SMITH MICHAEL / STAMPS FRANK BRADLEY / LEE TAEOH et al. | European Patent Office | 2015

    Free access