Acoustic Noise and Vibration Studies at Cape Canaveral Missile Test Annex. Volume 2, Vibration.

摘要

Acoustic-noise-induced vibrational effects upon seven antenna structures were recorded during fourteen missile launches at Cape Canaveral Missile Test Annex (CCMTA). Vibrational effects were recorded within the frequency range between 3 and 2000 cycles per second. Maximum vibrations encountered per one-third octave frequency band are presented in this report along with findings on the relationship of vibration levels to acoustic noise. All vibration levels measured in this test series were relatively low, chanqed in direct proportion to sound-pressure levels, and provided experii-ental substantiation for predicting increases in structural acceleration levels based on predicted increases in acoustic levels resulting from more powerful rocket engines.