CAJ | 학술논문

通过对巨子型结构体系（ mega－sub controlled structure system，即MSCSS）的动力学方程进行推导，利用拉氏变换得到系统的传递函数，进一步表示出该新型控制结构体系在地震作用下所特有的位移动力放大系数（ dynamic magnification factor，即DMF ）表达式，以DMF 为指标从理论层面揭示MSCSS的频域控制特性及动力响应特征。通过算例基于DMF分析主结构与子结构的参数（质量比、刚度比、附加阻尼比）设置对MSCSS调谐减震性能的影响，为建构不同层数MSCSS及合理的实体模型提供理论依据。
통과대거자형결구체계（ mega－sub controlled structure system，즉MSCSS）적동역학방정진행추도，이용랍씨변환득도계통적전체함수，진일보표시출해신형공제결구체계재지진작용하소특유적위이동력방대계수（ dynamic magnification factor，즉DMF ）표체식，이DMF 위지표종이론층면게시MSCSS적빈역공제특성급동력향응특정。통과산례기우DMF분석주결구여자결구적삼수（질량비、강도비、부가조니비）설치대MSCSS조해감진성능적영향，위건구불동층수MSCSS급합리적실체모형제공이론의거。
We deduce the dynamic equation of the mega-sub controlled structural system(MSCSS) and use the transfer function derived through the Laplace transform to obtain the expression of the dynamic magnification factor ( DMF) that represents the displacement typical of the MSCSS.Theoretically,we use the DMF as an indicator to re-veal the frequency domain control characteristics of the MSCSS and its dynamic response.The results of numerical a-nalysis based on the DMF,given in Figs.1 through 6,and their analysis show preliminarily that different settings of parameters such as the mass ratio,stiffness ratio and additional damping ratio of the MSCSS under earthquake exci-tation have different effects on its tuned vibration absorption performance.The exploration results provide theoretical bases for setting the parameters of the MSCSS with different layers and establishing its reasonable physical model.