Impulsive forces applied to an aircraft fuselage generate radial vibration waves in the structure analogous to those in a classical thin shell. It has been found that these waves are detected by the cockpit area microphone, and that spectrogram analysis of the microphone recording can provide information on the nature, origin and strength of the source, whether an explosion or a sudden decompression.
Spectrogram Diagnosis of Aircraft Disasters
Sae Technical Papers
International Pacific Air & Space Technolgy Conference ; 1991
1991-09-01
Conference paper
English
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