RANDOM VIBRATION RESPONSE OF A CANTILEVER BEAM TO ACOUSTIC FORCING BY SUPERSONIC ROCKET EXHAUSTS DURING A SPACE SHUTTLE LAUNCH

摘要

This paper presents a brief overview of recently completed research in the area of rocket noise and resulting dynamic behavior of launch pad structures. To gain accurate insight into the vibratory behavior of these structures, dynamic tests were integrated into the design process. Aspects of the acoustic load characterization procedure and the test-analysis correlation of random vibration structural response in the low frequency range (1 to 50 hertz) are presented.