The presence of vibration often leads to excessive wear of bearings, formation of cracks, loosening of fasteners,
structural and mechanical failures, frequent and costly maintenance of machines. Vibration can be used for useful purposes as
in vibration testing equipment’s, vibratory conveyors, hoppers, sieves, musical instruments, and propagation of sound. But
vibration in some cases has disadvantageous too. Self-tuning combined vibration absorbers are devices, which use energy from
the primary system to change the tuned frequency of the absorber to match the primary system’s excitation frequency. In this
paper an overview of the tuned in vibration absorber is presented.
