Response of structures to random acoustic excitation-An experimental study

EXPERIMENTAL investigation of the response of structures to a peaked type of power spectral density of loading, which represents the actual random excitations realistically, is discussed. Response accelerations have been measured for structures like flat and stiffened plates and have been analyzed for their power spectral density and autocorrelation functions. The random loading is uniform over the plate area so that the space correlation may be assumed unity. Experimental findings in this paper are compared with theoretical results and the agreement between the two is found to be quite good. © American Institute of Aeronautics and Astronautics, Inc., 1974, All rights reserved.