Abstract：A dynamic vibration absorber with ball is presented to control the special multi-direction forced vibra-tion. Based on the theoretical analysis and numerical calculation, the mechanism and the effects of parameters of vibration control of the absorber are clarified. According to fixed-points theory, the frequency and the damping of vibration control system are optimized. The results show that the special forced vibration at resonance point of machine or structure can be reduced effectively by using this simple ball type dynamic vibration absorber
2012, Vol. 31 
