基于刚度-阻尼器ATMD模型的性能评价

提出了基于刚度-阻尼器主动调谐质量阻尼器(SD-ATMD)新模型。利用导出的SD-ATMD-结构系统的传递函数，建立了SD-ATMD-结构系统的动力放大系数。于是SD-ATMD的最优参数与有效性的评价准则可定义为设置SD-ATMD结构最大动力放大系数中最小值的最小化。而SD-ATMD冲程的评价准则定义为SD-ATMD动力放大系数的最大值。基于上述两个评价准则，研究了刚度比(R)对SD-ATMD性能(最优参数、有效性和冲程)的影响。为比较，同时考虑了传统的ATMD(即R=0．0的SD-ATMD)的数值结果。。

Performance Assessment of Stiffness-Dashpot-Based ATMD Model

New modeling of stiffness_dashpot_based active tuned mass damper(SD_ATMD)is proposed.Employing the derived transfer functions of the SD_ATMD structure system,the dynamic magnification factors of the SD_ATMD structure system are formulated.The assessment criterion of the optimum parameters and effectiveness of the SD_ATMD may then be defined to be the minimization of the minimum values of the maximum dynamic magnification factors of the structure with SD_ATMD.The evaluation criterion of the SD_ATMD stroke is selected as the maximum dynamic magnification factor of the SD_ATMD.Parametric studies for the influences of the stiffness ratio(R) on the performance(involving the optimum parameters,effectiveness,and stroke) of the SD_ATMD are then carried out using the two assessment criteria defined above.For the purpose of making a comparison,the results of the traditional ATMD,namely the SD_ATMD with the stiffness ratio (R) being equal to 0.0,are also taken into account in the paper.