Optimal Design of MTMD Vertical Vibration-Reduction for Horizontal Structures Based on the Combination of Optimal Parameters
The vibration-reduction effect of the MTMD system depends on the optimization of both Tuned Mass Damper(TMD)parameters and its arrangement.For the vertical vibration control of horizontal structures including large floors and aerial corridors,an optimal design method of the MTMD vibration-reduction system,which consists of the following two steps,was proposed:1)the optimal parameters of TMD were derived from the frequency domain solution for a damped single degree of freedom structure with TMD;2)each target-mode was extracted according to the dominated participated-mode-mass,and the TMDs with optimal parameters were arranged where the greatest mode-displacement appeared.The results showed that the method was simple,practical,and had high calculation efficiency.For pedestrian load excitations with different frequencies,the ideal vertical vibration-reduction effect could be achieved when the mass of MTMD was only 0.5%to that of the main structure.
NETL
NSTL
万方数据
维普
