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biot peak
相关语句
  biot峰
     These two peaks change while temperature increases. The relaxation peak moves from low frequency side to high one,and Biot peak moves from high frequency side to low one.
     在频率谱上,两峰随着温度的升高,低频段弛豫峰向高频方向移动,高频段的Biot峰向低频方向移动;
短句来源
  相似匹配句对
     (DANTE'S PEAK)
     《烈焰狂峰》二区豪华特别版
短句来源
     The Peak of the World
     世界之峰
短句来源
     It is clear that thermal relaxation attenuation peak and Biot attenuation peak appear on both frequency and temperature domains.
     无论在频率谱或温度谱上都出现了热弛豫衰减峰和Biot衰减峰。
短句来源
     NUMERICAL INVESTIGATION OF BIOT THEORY
     Biot理论的数值研究
短句来源
     On the invariation of Biot-Savart law
     关于毕-萨定律形式的不变性
短句来源
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Propagation characteristics of S-wave are studied through one-dimensional S-wave equation after complex modulus is introduced into the Biot equation. Numeric analysis of S-wave shows that thermal relaxation attenuation peak and Biot attenuation peak appear in both frequency domain and temperature domain. Temperature changes cause relative shift of the two peaks in frequency domain,and frequency changes cause relative shift in temperature domain. As temperature and frequency increase...

Propagation characteristics of S-wave are studied through one-dimensional S-wave equation after complex modulus is introduced into the Biot equation. Numeric analysis of S-wave shows that thermal relaxation attenuation peak and Biot attenuation peak appear in both frequency domain and temperature domain. Temperature changes cause relative shift of the two peaks in frequency domain,and frequency changes cause relative shift in temperature domain. As temperature and frequency increase continuously, the two peaks will overlap each other, then they change their position. It means that thermal relaxation peak in low-frequency area or low-temperature area moves to the high-region, while Biot peak in high-frequency or high-temperature region moves to low-frequency or low-temperature area. Difference between attenuation mechanisms of the two peaks causes the complexity of changing pattern of S-wave velocity with increasing frequency or temperature. These rules have been partially testified by resonance tests. So it is confirmed that the theoretical model has experimental foundations.

将复模量引入Biot方程后 ,在一维条件下通过S波的波动方程研究了S波的传播特性 ,S波的数值分析显示在频率域或温度域上都能获得热弛豫衰减峰和Biot衰减峰 .在频率域上由于温度的变化引起两峰相向位移 ,在温度域上 ,因频率的变化也发生相对移动 .随着温度和频率的不断提高 ,两峰发生叠加 ,叠加后两峰互换位置 .低频或低温段的热弛豫峰移到了高频或高温段 ,高频或高温段的Biot峰移到了低频或低温段 .由于两峰的衰减机制不同 ,导致S波波速随频率或温度变化规律的复杂性 .这些规律已部分被共振实验所证实 ,证实该理论模型具有实验基础 .

In this paper 1D P-wave characteristics are discussed when complex modulus is introduced into Biot equation. It is clear that thermal relaxation attenuation peak and Biot attenuation peak appear on both frequency and temperature domains. These two peaks change while temperature increases. The relaxation peak moves from low frequency side to high one,and Biot peak moves from high frequency side to low one. Also they change when frequency increases. The relaxation peak...

In this paper 1D P-wave characteristics are discussed when complex modulus is introduced into Biot equation. It is clear that thermal relaxation attenuation peak and Biot attenuation peak appear on both frequency and temperature domains. These two peaks change while temperature increases. The relaxation peak moves from low frequency side to high one,and Biot peak moves from high frequency side to low one. Also they change when frequency increases. The relaxation peak moves to high temperature side and Biot peak moves to low side. It is found that the combination of thermal relaxation and Biot mechanism leads to increment of wave velocity with two inflection points when its frequency rises. For the same reason,wave velocity decreases and then increases as temperature rises. The results are testified by experiments which are made by the authors. Some published experimental results are also well modeled in this way.

将Debye模型的复模量引入Biot方程后,在一维条件下讨论P波的传播特性。无论在频率谱或温度谱上都出现了热弛豫衰减峰和Biot衰减峰。在频率谱上,两峰随着温度的升高,低频段弛豫峰向高频方向移动,高频段的Biot峰向低频方向移动;在温度谱上,随着频率的提高,低温段的弛豫峰向高温方向移动,高温段的Biot峰向低温方向移动。由于热驰豫和Biot两种机制的作用导致波速在频率谱上随频率增高波速增大,并在较高温度时随频率增高出现两个拐点。在温度谱上随温度升高波速下降后又上升。该结果已被部分实验证实,并较好地从理论上解释了前人的实验结果。

 
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