可用于进行任意自由度的结构的动力时程分析，求解结构的动力响应，包含位移、速度以及加速度，然后对其进行傅里叶变换到频域，可通过滤波函数去除无关频率(The dynamic time history analysis of a structure with arbitrary degree of freedom can be used to solve the dynamic response of the structure, including the displacement, velocit