
STUART HARPER
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Several rocket tests like this one were performed to better understand the damage caused to rockets by acoustic "crackle".


This is my citation from when I presented at the ASA conference in the rocket noise session.

Several rocket tests like this one were performed to better understand the damage caused to rockets by acoustic "crackle".
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This was my physics thesis at BYU.
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It is a statistical analysis of noise data from various-sized solid propellant rocket motors.
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I personally programmed the analysis in MatLab.
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Non-Gaussian features of the data were explored by calculating probability density functions (PDF) of the data, standard deviation, skewness, and kurtosis.
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This was the first time this type of analysis was done for both the pressure waveform and its time derivative.
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Rocket nozzle exit diameters ranged from 0.13m to 1.22m.
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This revealed the formation of acoustic shocks within the noise.
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Presented these results at the Acoustical Society of America.