Dissertation/Thesis Abstract

Use of Low-Cost Microphones for Acoustic Measurement of High-Powered Amateur Rockets
by Briggs, Nicholas Jacob, M.S., Mississippi State University, 2019, 86; 13805778
Abstract (Summary)

The payload environment of a rocket is random and dynamic during liftoff and flight, with acoustic noise, vibration, and acceleration falling under its definition. Characterization of this environment is important to finalize payload design requirements and insure mission completion. This report will focus on the study and measurement of acoustic noise using a low-cost microphone. Various spectral analysis techniques were utilized to characterize acoustic intensities and frequency content. Effects of vibration and acceleration, ground reflection, atmospheric absorption, and nonlinear propagation were investigated. Noise data were obtained from a rocket launch and several vertical, static-fired hybrid motors. The propulsion system acoustic loads were compared to prediction methods from NASA SP-8072.

Indexing (document details)
Advisor: Koenig, Keith
Commitee: Olsen, Gregory, Sescu, Adrian
School: Mississippi State University
Department: Aerospace Engineering
School Location: United States -- Mississippi
Source: MAI 58/05M(E), Masters Abstracts International
Subjects: Aerospace engineering, Acoustics
Keywords: Acoustic analysis, Rocket noise
Publication Number: 13805778
ISBN: 978-1-392-17211-7
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