ACOUSTICAL HAZARDS OF ROCKET BOOSTERS. VOL. 1. PHYSICAL ACOUSTICS.
PHILCO NEWPORT BEACH CA AERONUTRONIC DIV
Pagination or Media Count:
The results are presented of a survey and analysis of the acoustical hazards at a missile launch site. Volume I deals with the physical aspects of acoustics, noise sources, means of generation, special characteristics of rocket noise, similarity concepts, and prediction techniques for near and far field sound pressure levels, directivity, and acoustical power levels of large rocket boosters. The influence of clusters and blast deflectors on the generation of rocket noise are considered. Comparisons are made of the expected differences in noise produced by liquid, solid, andor nuclear rocket engines. Measured acoustical data are presented for static test conditions and for launching missiles with high-thrust booster engines. Theoretical analysis and measurements are presented of sound attenuation along the surface of the earth and at various elevations from the ground as influenced by varying geographical and weather conditions.