The ratio of vertical and horizontal predominant period is 0.7-0.9, so independent characteristic period of vertical design response spectrum should be defined.
竖向与水平向地震动分量卓越周期的比值在0.7 - 0.9之间，竖向设计反应谱的特征周期应有单独规定。
But these researches all established on the stage of elasticity analysis, the same characteristic period of response spectrum was used for the stage of elastoplastic analysis.
但这些研究多建立在弹性阶段分析的基础之上，对于弹塑性阶段的选波采用了与弹性阶段相同的特征周期。
A new method of estimating characteristic parameters for continuous spectrum of response signal of damped free vibration is presented in this paper.
针对自由衰减振动信号的连续谱，提出了一种估计特征参数的方法。
The frequency response characteristic of the tested system can be easily obtained just by giving a chaotic input and analyzing the spectrum of the output.
该方法仅需将混沌信号作为激励信号作用于被侧系统，通过计算系统偷出信号的频谱，便可获得被浏系统的颇率回应特性。
The frequency response characteristic of the tested system can be easily obtained just by giving a chaotic input and analyzing the spectrum of the output.
该方法仅需将混沌信号作为激励信号作用于被侧系统，通过计算系统偷出信号的频谱，便可获得被浏系统的颇率回应特性。
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