A modified passive tuned absorber for secondary systems under random excitation

Abstract

Secondary systems may have to endure severe vibration amplitudes under the influence of the primary structures on which they are mounted. A series of numerical case studies are presented in this paper to investigate the effectiveness of a tuned vibration absorber with an impact damper, to attenuate the excessive vibration amplitudes of light secondary systems. In addition, experimental measurements are reported for some selective cases and comparisons are made with numerical predictions. This suggested configuration seems suited ideally as an add-on enhancer for existing conventional absorbers. Results are presented for random white noise excitation. © 1997 Academic Press Limited.