中文摘要：

在随机的压力 waveswere 下面的岩石的反应和精力驱散基于与 Fouriertransform 方法集成的易碎的材料的动态破裂标准分析了光谱分析。当随机的压力波浪通过岩石播送时， thefrequency 和泛音部件的精力比率被计算由分析并且 discreteanalysis 方法。在页岩， malmstone 和 liparite 的压力波浪作为例子 toillustrate 被花建议分析方法。结果显示出越难岩石，越不 absorptionof 精力，无用的橡皮飘动越多通过岩石播送，并且更狭窄折断岩石的 cutofffrequency。当整个压力精力由加倍 durationtime 或由增加压力波浪的振幅加倍时，通过到整个压力精力的岩石的有弹性的 wavestransmitting 的精力的比率(即精力驱散比率) 被减少 to10%-15% 。当加倍持续时间时间时，折断岩石的截止频率仍然是 constant.However，随压力波浪的振幅的增加，截止频率 increasesaccordingly。

英文摘要：

The response and energy dissipation of rock under stochastic stress waves were analyzed based on dynamic fracture criterion of brittle materials integrating with Fourier transform methods of spectral analysis. When the stochastic stress waves transmit through rocks, the frequency and energy ratio of harmonic components were calculated by analytical and discrete analysis methods. The stress waves in shale, malmstone and liparite were taken as examples to illustrate the proposed analysis methods. The results show the harder the rock, the less absorption of energy, the more the useless elastic waves transmitting through rock, and the narrower the cutoff frequency to fracture rock. When the whole stress energy doubles either by doubling the duration time or by increasing the amplitude of stress wave, ratio of the energy of elastic waves transmitting through rock to the whole stress energy （i.e. energy dissipation ratio） is decreased to 10%-15%. When doubling the duration time, the cutoff frequency to fracture rock remains constant. However, with the increase of the amplitude of stress wave, the cutoff frequency increases accordingly.