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
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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。
New modeling of stiffness-dashpot based Active Multiple Tuned Mass Dampers(SD-AMTMD)is proposed in the present paper.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 is 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 then 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.
New modeling of stiffness-dashpot based Active Multiple Tuned Mass Dampers(SD-AMTMD)is proposed in the present paper.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 is 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 then 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.
引文
1 LiChunxiang,LiuYanxia.Activemultipletunedmassdampersforstructuresunderthegroundacceleration.EarthquakeEng.Struct.Dyn.,2002,31(5):1041—1052
2 LiChunxiang,LiuYanxia,WangZhaomin.Activemultipletunedmassdampers:anewcontrolstrategy.J .Struct.Eng.,ASCE (Ac ceptedforpublicationin2003)
3 李春祥,杜 冬.MTMD对结构刚度和质量参数摄动的鲁棒性.振动与冲击,2004,23(1):38—40
4 李春祥,周 岱.基于位移响应控制时不同激励下MTMD性能的比较研究.振动与冲击,2004,23(2):52—54
5 李春祥.基于刚度-阻尼器ATMD模型的性能评价.振动与冲击,2004,23(3):14—16
6 李春祥,刘艳霞,王肇民.地震作用下结构的基于阻尼柔性连接MTMD控制.应用力学学报,2003
2 LiChunxiang,LiuYanxia,WangZhaomin.Activemultipletunedmassdampers:anewcontrolstrategy.J .Struct.Eng.,ASCE (Ac ceptedforpublicationin2003)
3 李春祥,杜 冬.MTMD对结构刚度和质量参数摄动的鲁棒性.振动与冲击,2004,23(1):38—40
4 李春祥,周 岱.基于位移响应控制时不同激励下MTMD性能的比较研究.振动与冲击,2004,23(2):52—54
5 李春祥.基于刚度-阻尼器ATMD模型的性能评价.振动与冲击,2004,23(3):14—16
6 李春祥,刘艳霞,王肇民.地震作用下结构的基于阻尼柔性连接MTMD控制.应用力学学报,2003
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