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.
Vibration Testing and Modal Analysis of Airplanes – Recent Advances
Sae Technical Papers
World Aviation Congress & Exposition ; 2004
02.11.2004
Aufsatz (Konferenz)
Englisch
Vibration Testing and Modal Analysis of Airplanes Recent Advances
British Library Conference Proceedings | 2004
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