Development of a vibroacoustic system for non-destructive test in aerospace structures Eco Acustica Vibrações e Acústica Ltda. ( ecoacustica@ecoacustica.com.br ).

Format:

Conference/Event

Author/Creator:

de Avelar Gomes, Márcio Henrique, author.

Conference Name:

SAE Brasil Noise and Vibration Conference (2008-03-30 : Florianopolis, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2008

Summary:

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

Notes:

Vendor supplied data

Publisher Number:

2008-36-0557

Access Restriction:

Restricted for use by site license