Abstract
This paper deals with the problem of control performance and optimization of the Parallel hybrid dynamic vibration absorber (PHADVA), which is a parallel combination of an active dynamic vibration absorber (ADVA) and a passive dynamic vibration absorber (PDVA). It is shown that the control force of an ordinary PHADVA with optimally tuned parameters for PDVA exceeds that of an ADVA over a certain control level. This result indicates the importance of the optimization of the spring constant and the damping coefficient of the hybrid passive elements. Their optimization is carried out, and the numerical calculation indicates that the control performance is sensitive to the variation of the spring constant, and that the optimal values become smaller as the control level rises. The effect of optimization is also investigated by numerical analysis and verified.
