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Proceedings Paper

Contact versus noncontact measurement of a large composite fuselage panel
Author(s): Marcin Luczak; Antonio Vecchio; Bart Peeters; Elena Pierro
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Paper Abstract

This paper presents a comprehensive study between accelerometer, laser vibrometer and microflown probe measurements aimed at comparison of modal model quality assessment. Object of an investigation was a large composite fuselage panel. An extensive test campaign was performed with application of SIMO, MIMO, random and harmonic excitation, velocity and acceleration sensors, contact and non-contact measurement techniques. Advantages and disadvantages of applied instrumentation are discussed taking into account test data variability and the trade-off between workload and test data quality. Presented are real-life measurement problems related to the specific set up conditions. Finally a statistical analysis of estimated models is evaluated to bring to light general assessment of test campaign. Such assessment has a vital importance of successful fault detection based on modal parameters observation as well as in uncertain non-deterministic numerical model updating.

Paper Details

Date Published: 17 June 2008
PDF: 12 pages
Proc. SPIE 7098, Eighth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 70980W (17 June 2008); doi: 10.1117/12.803146
Show Author Affiliations
Marcin Luczak, LMS International (Belgium)
Antonio Vecchio, LMS International (Belgium)
Bart Peeters, LMS International (Belgium)
Elena Pierro, Politecnico di Bari (Italy)

Published in SPIE Proceedings Vol. 7098:
Eighth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications

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