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http://dx.doi.org/10.7776/ASK.2020.39.4.322

Comparative analysis of noise from three Falcon 9 launches  

Mathews, Logan T. (Brigham Young University)
Gee, Kent L. (Brigham Young University)
Hart, Grant W. (Brigham Young University)
Rasband, Reese D. (Brigham Young University)
Novakovich, Daniel J. (Brigham Young University)
Irarrazabal, Francisco I. (Brigham Young University)
Vaughn, Aaron B. (Brigham Young University)
Nelson, Pauline (Brigham Young University - Idaho)
Publication Information
The Journal of the Acoustical Society of Korea / v.39, no.4, 2020 , pp. 322-330 More about this Journal
Abstract
This study investigates the far-field noise from three Falcon 9 vehicle launches from Vandenberg Air Force Base, CA, USA, as measured from the same location within the nearby community of Lompoc. The overall sound pressure levels for the three launches are shown to be similar, but some differences in the early launch period are thought to be weather-related. The peak directivity angle in overall level is approximately 65 deg, which is consistent with horizontally-fired, static rocket data. For the third launch, waveforms and spectra are analyzed for different events during the launch sequence. The measured spectral bandwidth decreases with time, but spectral levels remain above the ambient noise throughout the main-engine firing. Additionally, late-launch phenomena observed in the data appear to be correlated with main-engine cutoff and second-stage engine start.
Keywords
Rocket noise; Launch vehicle noise; Outdoor sound; Infrasound propagation;
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  • Reference
1 S. A. McInerny, "Rocket noise-A review," Proc. 13th Aeroacoustics Conf. AIAA-90-3981 (1990).
2 S. A. McInerny, "Launch vehicles acoustics. I. Overall levels and spectral characteristics," J. Aircr. 33, 518-523 (1996).   DOI
3 S. A. McInerny, "Launch vehicle acoustics. II. Statistics of the time domain data," J. Aircr. 33, 511-517 (1996).   DOI
4 S. A. McInerny and S. M. Olcmen, "High-intensity rocket noise: Nonlinear propagation, atmospheric absorption, and characterization," J. Acoust. Soc. Am. 117, 578-591 (2005).   DOI
5 W. H. Mayes, W. E. Lanford, and H. H. Hubbard, "Near-field and far-field noise surveys of solid-fuel rocket engines for a range of nozzle exit pressures," NASA Tech. Note, D-21, 1959.
6 K. M. Eldred, "Acoustic loads generated by the propulsion system," NASA SP-8072, 1971.
7 R. J. Kenny, C. Hobbs, K. Plotkin, and D. Pilkey, "Measurement and characterization of Space Shuttle solid rocket motor plume acoustics," AIAA paper, 2009-3161 (2009).
8 K. L. Gee, V. W. Sparrow, M. M. James, J. M. Downing, C. M. Hobbs, T. B. Gabrielson, and A. A. Atchley, "The role of nonlinear effects in the propagation of noise from high-power jet aircraft," J. Acoust. Soc. Am. 123, 4082 (2008).   DOI
9 M. M. James, A. R. Salton, K. L. Gee, T. B. Neilsen, and S. A. McInerny, "Full-scale rocket motor acoustic tests and comparisons with empirical source models," Proc. Mtgs. Acoust. 18, 040007 (2012).
10 M. M. James, A. R. Salton, K. L. Gee, T. B. Neilsen, S. A. McInerny, and R. J. Kenny, "Modification of directivity curves for a rocket noise model," Proc. Mtgs. Acoust. 18, 040008 (2012).
11 J. N. Cole, H. E. von Gierke, D. T. Kyrazis, K. M. Eldred, and A. J. Humphrey, "Noise radiation from fourteen types of rockets in the 1,000 to 130,000 pounds thrust range," WADC Tech. Rep., 57-354, 1957.
12 W. L. Donn, E. Posmentier, U. Fehr, and N. K. Balachandran, "Infrasound at long range from Saturn V, 1967," Science, 162 (3858), 1116-1120 (1968).   DOI
13 G. Kaschak, W. L. Donn, and U. Fehr, "Long‐range infrasound from rockets," J. Acoust. Soc. Am. 48, 12-20 (1970).   DOI
14 P. Blom, O. Marcillo, and S. Arrowsmith, "Analysis and modeling of infrasound from a four-stage rocket launch," J. Acoust. Soc. Am. 139, 3134-3138 (2016).   DOI
15 "Falcon User's Guide," Space Exploration Technologies Corp. SpaceX, 2019.
16 D. Rind and W. L. Donn, "Further use of natural infrasound as a continuous monitor of the upper atmosphere," J. Atmos. Sci. 32, 1694-1704 (1975).   DOI
17 M. Muhlestein, K. L. Gee, T. B. Neilsen, and D. C. Thomas, "Prediction of nonlinear propagation of noise from a solid rocket motor," Proc. Mtgs. Acoust. 18, 040006 (2012).