Development of a vibroacoustic system for non-destructive test in aerospace structures 2008-36-0557
The present work describes an alternative way (to ultrasound) to check the existence of superficial flaws in sandwich panels used in the aerospace industry, based in a technique inspired in the well known "tap test". In this case, however, a non-impulsive excitation is provided by a especial transducer and the acoustic response is captured with a microphone. Correlation and Deconvolution techniques are used in order to assess the system's vibroacoustic impulse response and generate a "failure" map after post-processing the results. Results and aspects in regard to its implementation and automation are described in the paper.
Citation: de Avelar Gomes, M., de Oliveira Bonifácio, P., Giuliani, C., Dias, F. et al., "Development of a vibroacoustic system for non-destructive test in aerospace structures," SAE Technical Paper 2008-36-0557, 2008, https://doi.org/10.4271/2008-36-0557. Download Citation
Márcio Henrique de Avelar Gomes, Paulo Roberto de Oliveira Bonifácio, Caio Merlini Giuliani, Franciso Manoel Correa Dias, José Ilton Gomes
Eco Acustica – Vibrações e Acústica Ltda. (
firstname.lastname@example.org ), Centra Federal de Educação Tecnológica – CEFET – Joinville, S.C, Eco Acustica - Vibrações e Acústica Ltda, CENIC Engenharia Indústria e Comércio Ltda