Vibrations due to excitation of the natural modes of an aircraft's body are suppressed by an active multi-axis modal suppression system. Dedicated sensors are positioned in the aircraft at optimal locations for sensing modal induced vibrations. The sensor produced signals are processed through control logic which, in response thereto, and in response to aircraft inertial, velocity and altitude related signals produces output control signals. The control signals effect control surface deployment creating forces to suppress the natural mode induced vibrations on multiple geometric axis's. More particularly, symmetric and anti-symmetric control surface deployments are used on one or more geoaietric axis's to damp lateral, longitudinal, vertical and most importantly torsional vibrational modes.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Aircraft multi-axis modal suppression system for reducing torsional vibration in the aircraft structure


    Weitere Titelangaben:

    System zur Unterdrückung der Vibrationsmoden in Drehung auf mehreren Axen eines Flugzeugs
    Système de suppression des modes de vibration en torsion sur un avion


    Beteiligte:
    KIOUMARS NAJMABADI (Autor:in) / HO JOHN K (Autor:in) / TRAN CHUONG B (Autor:in)

    Erscheinungsdatum :

    08.05.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / B64C AEROPLANES , Flugzeuge



    Aircraft multi-axis modal suppression system

    KIOUMARS NAJMABADI / HO JOHN K / TRAN CHUONG B | Europäisches Patentamt | 2019

    Freier Zugriff

    AIRCRAFT MODAL SUPPRESSION SYSTEM

    STREFLING PAUL C / NAPPI JR JOHN M / WEAVER JARED D et al. | Europäisches Patentamt | 2025

    Freier Zugriff

    AIRCRAFT MODAL SUPPRESSION SYSTEM

    STREFLING PAUL C / NAPPI JOHN M JR / WEAVER JARED D et al. | Europäisches Patentamt | 2025

    Freier Zugriff

    Torsional vibration of aircraft engines

    Lurenbaum, Karl | NTRS | 1932


    Torsional Vibration of In-Line Aircraft Engines

    Montieth, O. V. / Hazen, R. M. | SAE Technical Papers | 1938