The effectiveness of the series tuned mass dampers (STMDs) in reducing the dynamic vibrations of the structures under the ground motion is investigated, and their optimum parameters are obtained based on the simulated annealing (SA) optimization. The STMD is one of the most well-known passive control devices which consists of two TMD units arranged in series. However, only a few studies are available on the control performance and optimum parameters of the STMDs for structural systems subjected to ground motion. Thus, the goal of this study is to carry out a thorough optimization analysis based on the SA algorithm for the structures equipped with an STMD under the effect of ground motion. The objective function is selected as the reduction of the displacement response of the structure. It is proved that the optimum STMD has better effectiveness than the optimum TMD in suppressing the maximum story displacement of the structure. Further, the effect of the frequency shift on the effectiveness of the optimally designed STMD is investigated.

研究了串联调谐质量阻尼器（STMD）在地震动作用下降低结构动态振动的有效性，并基于模拟退火（SA）优化获得了它们的最佳参数。STMD 是最著名的无源控制设备之一，它由两个串联的 TMD 单元组成。然而，只有少数关于受地震动影响的结构系统的 STMD 的控制性能和最佳参数的研究。因此，本研究的目标是基于 SA 算法对配备 STMD 的结构在地震动作用下进行彻底的优化分析。目标函数选择为结构位移响应的减少。证明最优STMD在抑制结构最大楼层位移方面比最优TMD具有更好的效果。此外，还研究了频移对优化设计的 STMD 有效性的影响。