The paper will introduce some recent advances in vibration testing and modal analysis of airplanes. Recently, a very promising parameter estimation method became available, that has the potential to become the new standard. The main advantage of this so-called PolyMAX method is that it yields extremely clear stabilization diagrams even for broadband and high-order analyses. The method will be applied to two aircraft cases: a Ground Vibration Test using broadband shaker excitation on a small composite aircraft and in-flight data using natural turbulences as excitation. These two data sets allow illustrating both the classical Frequency Response Function based as well as the operational output-only modal analysis process.


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    Titel :

    Vibration Testing and Modal Analysis of Airplanes – Recent Advances


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    World Aviation Congress & Exposition ; 2004



    Erscheinungsdatum :

    02.11.2004




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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