基于刚度-阻尼器主动多重调谐质量阻尼器模型的性能评价  

PERFORMANCE ASSESSMENT OF MODELING OF STIFFNESS-DASHPOT BASED ACTIVE MULTIPLE TUNED MASS DAMPERS

作　　者：李春祥[1] 

机构地区：[1]上海交通大学建筑工程与力学学院,上海200030

出　　处：《振动与冲击》2004年第4期103-106,共4页Journal of Vibration and Shock

摘　　要：提出了基于刚度 -阻尼器主动多重调谐质量阻尼器 (SD -AMTMD)新模型。利用导出的设置SD -AMTMD结构的传递函数 ,建立了设置SD -AMTMD结构的动力放大系数。于是SD -AMTMD最优参数和有效性的评价准则定义为 :设置SD -AMTMD结构最大动力放大系数中最小值的最小化。SD -AMTMD冲程的评价准则定义为 :SD -AMTMD的最大动力放大系数。基于定义的评价准则 ,研究了刚度比对SD -AMTMD最优参数、有效性和冲程的影响。为比较 ,同时考虑了AMTMD(即零刚度比的SD -AMTMD)的数值结果。A modeling of stiffness-dashpot based Active Multiple Tuned Mass Dampers (SD-AMTMD) is proposed. Employing the derived transfer function of the structure with SD-AMTMD, the dynamic magnification factor of the structure with SD-AMTMD is formulated. The assessment criterion of optimum parameters and effectiveness of SD-AMTMD are defined as the minimization of minimum values of maximum dynamic magnification factors of the structure with SD-AMTMD. The criterion used to evaluate the SD-AMTMD stroke is the maximum dynamic magnification factors of SD-AMTMD. Parametric studies of the effects of the stiffness ratio are carried out on the optimum parameters, effectiveness, and stroke of SD-AMTMD using the assessment criterion defined above. For the purpose of comparison, the numerical results of AMTMD, namely SD-AMTMD with the stiffness ratio equal to zero, are also taken into consideration.

关 键 词：主动多重调谐质量阻尼器 刚度比 放大系数 最优参数 设置 冲程 动力 SD 比对 影响 

分 类 号：TU311.3[建筑科学—结构工程] TU973