Vibration Testing and Modal Analysis of Airplanes – Recent Advances 2004-01-3140
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.
Citation: Peeters, B., Vecchio, A., Olbrechts, T., Van der Auweraer, H. et al., "Vibration Testing and Modal Analysis of Airplanes – Recent Advances," SAE Technical Paper 2004-01-3140, 2004, https://doi.org/10.4271/2004-01-3140. Download Citation
Author(s):
Bart Peeters, Antonio Vecchio, Thierry Olbrechts, Herman Van der Auweraer, Filip Lambert
Affiliated:
LMS International
Pages: 13
Event:
World Aviation Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 2004 Transactions Journal of Aerospace-V113-1
Related Topics:
Aircraft
Vibration
Turbulence
Composite materials
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