基于可控冲程主被动调谐质量阻尼器的性能

Performances of active-passive tuned mass dampers based on controlled stroke

提出了基于可控冲程的主被动调谐质量阻尼器(简称为CS-APTMD)。CS-APTMD是在主被动调谐质量阻尼器(APTMD)的基础上,在主体结构与小质量块之间设置一个附加粘滞阻尼装置而构成;经定义CS-APTMD的最优参数评价准则,在频域内,数值研究了在控制结构位移响应时质量比对CS-APTMD最优参数和有效性以及冲程的影响;并与APTMD的结果进行了比较。数值分析表明,CS-APTMD的控制性能显著地优于APTMD。

The controlled stroke-based active-passive tuned mass dampers （CS-APTMD）were proposed here.More specifically,an added viscous damping device was placed between the main structure and the smaller mass block of a APTMD to form a CS-APTMD.In order to study the optimal performance of a CS-APTMD,an optimization criterion was defined.Employing this defined criterion,the influences of mass ratio on optimal parameters and effectiveness,and stroke of a CS-APTMD were numerically studied in frequency domain when the displacement responses of the structure with the CS-APTMD were controlled.Furthermore,for the purpose of comparison,the optimal performances of the corresponding APTMD was also investigated.The numerical results showed that the controlling performances of a CS-APTMD are superior to those of the corresponding APTMD.