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本文把子结构法、振型迭加法、模态综合法等推广应用于非线性系统,提出分析非线性系统动力响应的离散分量法。把非线性微分方程组分离为关于质量为独立的非线性微分方程,并对此方程直接求解。大大节省计算机存贮量及计算时间,使用小型计算机即可分析非线性系统的动力响应。这方法可计算各类房屋结构、有隔振设备的动力基础、有抗震支座的桥梁以及机器、车辆等的振动。
In this paper, the substructure method, vibration mode superposition method, modal synthesis method and other methods are applied to nonlinear systems, and a discrete component method is proposed to analyze the dynamic response of nonlinear systems. Divide the set of nonlinear differential equations into independent nonlinear differential equations of mass, and solve the equation directly. Great savings in computer storage and computing time, the use of small computers to analyze the dynamic response of nonlinear systems. This method can calculate the vibration of various types of housing structures, the dynamic foundations of vibration isolation equipment, bridges with seismic bearings, and machines and vehicles.