【摘要】 对非比例阻尼体系动力响应的时域一般解答做了简介,分析了非比例阻尼隔震体系在阻尼耦联及频域响应方面的特点,提出了任意多自由度体系时域动力响应的一种工程实用算法.并通过实际隔震工程算例的结果对比,表明本文算法与复振型分解法、双精度Fortran下的Wilson θ法及Matlab下的Simulink这3种方法几种算法的时程曲线完全重合.更多还原

【Abstract】 A brief introduction is made to the general solution of dynamic time domain response of nonproportionally damped seismic isolation system. The characteristics of damping coupling and frequency response of such system is analysed, and a practical engineering method is suggested for calculating dynamic time domain response of nonproportionally damped MDOF isolated structure. Taking a real seismic isolation building as engineering illustration, the seismic response is calculated using the method suggested in this paper, and the results are compared with those from complex mode super position method, Wilsonθ method, and Simulink method in Matlab. The displacement, velocity and acceleration time history response curves obtained from the four different methods agree very well with each other.更多还原