A fluid surface damping (FSD) technique, proposed For vibration suppression of beamlike structures, is applied to a generic simply supported aluminum beam. The steady-state frequency response of the FSD-treated beam in the vicinity of one end, due to an applied white-noise displacement excitation at the other end, is determined using the finite-element method. The response is found over a range of frequency covering the first four resonant frequencies and over a wide temperature range. Comparison of the results with the corresponding ones for a beam treated with the constrained layer damping method indicates that the FSD technique has a much greater potential for the vibration suppression of beamlike structures. Results also indicate that the FSD technique can provide a good vibration suppression over a wider temperature range.
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