通过利用复模态分析法定义巨子型结构体系MSCSS（Mega-sub Controlled Structure System）的动力放大系数DMF（Dynamic Magnification Factor）表达式，取激励接近结构基频频段内的动力放大系数为指标，反映了结构各部分参数设置（质量比、刚度比、附加阻尼比及附加柱刚度比）对结构调频减震机理的影响。并采用最大最小化准则选取结构的最优参数范围，该分析法适用于分析不同巨层M SCSS的参数设置。%Sections 1 and 2 of the full paper explain our application ,Their core consists of :(1) Based on the complex modal theory ,the expression of the dynamic magnification factor(DM F)about the mega-sub controlled structural system(MSCSS) was derived .We used the dynamic magnification factor(DMF)as structure dynamic response index .(2) According to the change of the DM F in the range of excitation fre-quency which was close to the structural natural frequency of vibration ,it was concluded that different parameter settings (mass ratio ,stiffness ratio ,additional damping ratio ,additional pillar stiffness ratio ) about mega structure and sub structure had different influence on the control effectiveness of the MSC-SS .T he results ,Fig .3 to Fig .11 ,and the analysis preliminarily indicate that the optimal parameter set-tings can indeed improve significantly the self-absorption of shock of MSCSS .This method is applicable to analysis parameter settings of MSCSS with different number of layers .
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