线性纽马克法,用于对地震波进行反应谱的绘制-linear newmark method

一个单自由度结构的地震响应，文件包含EL地震波，采用三种方法计算，激励插值法，中心差分法和Newmark法。(The seismic response of a single-degree-of-freedom structure contains EL seismic waves, which are calculated by three methods: excitation interpolation method, central difference method and Newma

输入地震波，通过Newmark法计算反应的位移和速度，进而导出反应谱。(Response spectrum output)