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Analysis on Acoustic Noise around Launch Pad Induced by the Launch of a Space Launch Vehicle  

Sim, Hyung-Seok (한국항공우주연구원 체계설계팀)
Choi, Kyu-Sung (한국항공우주연구원 체계설계팀)
Ko, Jeong-Hwan (한국항공우주연구원 나로호체계종합팀)
Roh, Woong-Rae (한국항공우주연구원 체계설계팀)
Publication Information
Aerospace Engineering and Technology / v.11, no.2, 2012 , pp. 208-215 More about this Journal
Abstract
The acoustic noise around a launch pad by launches of space launch vehicles was analyzed. The magnitudes of sound noise at some points near launch pad were predicted by locating the sound source at the exhaust jet plume of the rocket engine and considering several factors such as the directivity of the sound propagation and atmospheric attenuation. Specifically, the launch noise of Korea Space Launch Vehicle-I (KSLV-I) was estimated, and was compared to the actual measurement results. The analysis results proved to be heavily affected by the characteristics of directivity of sound propagation and the analysis showed good agreements with the measurements when the directivity of the sound was appropriately adjusted.
Keywords
Launch vehicle; Acoustic noise; Directivity of sound propagation; KSLV-I;
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