Probabilistic Earthquake Energy Spectra Equations
Probabilistic Earthquake Energy Spectra Equations
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发表时间：
1980-02
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影响因子：
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通讯作者：
P. Spanos
中科院分区：
文献类型：
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作者：
P. Spanos
研究了轻阻尼线性结构对具有演化谱密度的宽带非平稳随机过程的响应。导出了结构能量随时间变化的一阶随机微分方程。利用这个方程，得到了一个容易适用的确定平均能量的方程。详细讨论了文献中提出的地震模拟的非平稳随机过程，并给出了概率能谱的构造方程。
The response of a lightly damped linear structure to a broad-band nonstationary random process with evolutionary spectral density is considered. A first-order stochastic differential equation governing the time evolution of the structural energy is derived. Utilizing this equation a readily applicable equation for the determination of the mean energy is obtained. Nonstationary random processes proposed in the literature for the simulation of earthquakes are examined in detail, and equations for the construction of probabilistic energy spectra are presented.