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dynamic damping ratio
相关语句
  动阻尼比
     Experimental study on dynamic damping ratio of frozen soil under cyclic loading
     循环荷载下冻土的动阻尼比试验研究
短句来源
     In this paper, some aspects such as the behavior of pore pressure of unsaturated loess, the dynamic constitutive relationship and the characteristics of the dynamic modulus, dynamic strength and dynamic damping ratio are studied with the dynamic torsional shear test of loess.
     在以上研究的基础上,本文又通过黄土的动扭剪试验研究了非饱和黄土的孔隙压力特性、动本构关系、动剪切模量特性、动强度特性以及动阻尼比特性。
短句来源
     (4) Dynamic damping ratio of frozen soil decreases with increment of frequency or decrement of temperature.
     冻土的动阻尼比随频率的增加或温度的降低而减小。
短句来源
     Dynamic triaxial test is mainly used to determine the dynamic shear modulus & dynamic damping ratio of soil,which are the important parameters for seismic response analysis. The value of these parameters the investigation & desige of the bridge.
     动三轴试验主要确定土的动剪切模量和土的动阻尼比,而这些参数又是地震动反应分析中的重要参数,该参数的取值小直接影响了桥梁的勘察设计。
短句来源
     It is shown from the dynamic test results that the dynamic shear modulus increases with increasing ambient consolidation pressure,and the variations in dynamic damping ratio with dynamic shear strain range are slightly affected by the ambient consolidation pressure;
     动力学试验结果表明,动剪切模量随着固结围压的增大而增大,动阻尼比随动剪应变幅的变化关系受围压影响不大;
短句来源
  阻尼比
     Experimental study on dynamic damping ratio of frozen soil under cyclic loading
     循环荷载下冻土的动阻尼比试验研究
短句来源
     In this paper, some aspects such as the behavior of pore pressure of unsaturated loess, the dynamic constitutive relationship and the characteristics of the dynamic modulus, dynamic strength and dynamic damping ratio are studied with the dynamic torsional shear test of loess.
     在以上研究的基础上,本文又通过黄土的动扭剪试验研究了非饱和黄土的孔隙压力特性、动本构关系、动剪切模量特性、动强度特性以及动阻尼比特性。
短句来源
     (4) Dynamic damping ratio of frozen soil decreases with increment of frequency or decrement of temperature.
     冻土的动阻尼比随频率的增加或温度的降低而减小。
短句来源
     It is shown from the dynamic test results that the dynamic shear modulus increases with increasing ambient consolidation pressure,and the variations in dynamic damping ratio with dynamic shear strain range are slightly affected by the ambient consolidation pressure;
     动力学试验结果表明,动剪切模量随着固结围压的增大而增大,动阻尼比随动剪应变幅的变化关系受围压影响不大;
短句来源
     3. By applying the latest new technique in the process of measurement, the formula to estimate the maximum dynamic equivalent shear modulus and a reference range of modulus are proposed on the basis of the laboratory results of dynamic elastic module and the damping ratio for 13 types of rockfill. In this range, the normalized dynamic equivalent shear modulus and the dynamic damping ratio are related to the amplitude of dynamic shear strain.
     3.应用微小应变测试技术,在综合分析13种堆石料动弹性模量与阻尼比试验结果的基础上,给出了堆石料最大等效动剪切模量的估算式,并建议了一般堆石料归一化等效动剪切模量、等效阻尼比与动剪应变幅依赖关系的取值范围。
短句来源
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  “dynamic damping ratio”译为未确定词的双语例句
     The result shows that confined pressure obviously effect the dynamic strength and modulus,it is also big that the change of dynamic modulus and dynamic damping ratio under different consolidation stress ration.
     试验结果表明,围压对动强度和动模量都有明显的影响,在不同的固结应力比条件下动强度及动模量变化也较大。
短句来源
     The result shows that confined pressure obviously effect the dynamic strength and modulus,it is also big that the change of dynamic modulus and dynamic damping ratio under different consolidation stress ration.
     试验结果表明,围压对动强度和动模量都有明显的影响,不同的固结应力比条件下,动强度及动模量变化也较大。
短句来源
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The equivalent dynamic shear modulus and equivalent damping ratio of rockfill material in several hydro projects are experimentally investigated using large scale triaxial test apparatus.On the basis of experimental results and elastic waves measured from 8 dams both in China and abroad,a formula for evaluate the maximum dynamic equivalent shear modulus and a reference range of the modulus are proposed.In this range the normalized dynamic equivalent shear modulus and dynamic damping ratio are related...

The equivalent dynamic shear modulus and equivalent damping ratio of rockfill material in several hydro projects are experimentally investigated using large scale triaxial test apparatus.On the basis of experimental results and elastic waves measured from 8 dams both in China and abroad,a formula for evaluate the maximum dynamic equivalent shear modulus and a reference range of the modulus are proposed.In this range the normalized dynamic equivalent shear modulus and dynamic damping ratio are related to the amplitude of dynamic shear strain.The dynamic parameters of rockfill material can be estimated according to the proposed formula and the reference range,in case the test data is not enough.

采用新研制的高精度大型三轴仪 ,对若干堆石坝工程的十余种堆石料进行了等效动剪切模量与等效阻尼比试验 ,在对本文试验结果和国内外 8座堆石坝现场弹性波试验结果进行综合分析的基础上 ,给出了最大等效动剪切模量的估算式及归一化等效动剪模量、等效阻尼比与动剪应变幅依赖关系的范围 .对试验资料不充分的情况 ,按本文建议的公式或取值范围对堆石材料的动力参数进行估算 ,可以满足工程需要

This paper analyses test data of dynamic stress-strains relationship for frozen soil, and presents the relation between damping ratio of frozen soil and experimental temperature, confining pressure, water content, vibratory frequency and time of axial dynamic stress, which based on a vast amount of information of low temperature dynamic triaxial shear experiment. The test results indicate that main influencing factors to damping ratio are experimental temperature, confining pressure and frequency. As temperature...

This paper analyses test data of dynamic stress-strains relationship for frozen soil, and presents the relation between damping ratio of frozen soil and experimental temperature, confining pressure, water content, vibratory frequency and time of axial dynamic stress, which based on a vast amount of information of low temperature dynamic triaxial shear experiment. The test results indicate that main influencing factors to damping ratio are experimental temperature, confining pressure and frequency. As temperature and confining pressure decreases, frequency increases, while dynamic damping ratio decreases. This offers basic test materials and results for further study of dynamic properties of frozen soil layer.

在大量低温动三轴试验资料基础上,对冻土的动应力-应变关系试验成果进行了分析,给出试验温度、围压、土的含水量、轴向动荷载的振动频率和振动次数等对冻土的阻尼比的影响关系,得出了冻土温度、围压、频率是影响冻结粉质粘土动阻尼比的主要因素,即随着温度的降低、围压的减小、振动频率的增加,冻土的阻尼比减小的结论,从而为进一步深入开展冻土场地动力特性研究提供了基础的试验资料与研究结果。

Testing study is made on dynamic mechanics parameters,including dynamic elastic modulus and dynamic damping ratio,of silty-clay and fine-sand which are sampled from the Qinghai-Tibet railway. Analysis is also performed on the relations among those parameters,frequencies,temperatures and water contents. The following test results are obtained. (1) Variation laws of dynamic mechanics parameters of frozen silty-clay and fine-sand are the same. (2) Dynamic elastic modulus of frozen soil will increase...

Testing study is made on dynamic mechanics parameters,including dynamic elastic modulus and dynamic damping ratio,of silty-clay and fine-sand which are sampled from the Qinghai-Tibet railway. Analysis is also performed on the relations among those parameters,frequencies,temperatures and water contents. The following test results are obtained. (1) Variation laws of dynamic mechanics parameters of frozen silty-clay and fine-sand are the same. (2) Dynamic elastic modulus of frozen soil will increase with increment of frequency or decrement of temperature. (3) While soil water content increases,dynamic elastic modulus of frozen soil will increase at first,and reach its maximum value when the soil are water-saturated. (4) Dynamic damping ratio of frozen soil decreases with increment of frequency or decrement of temperature. (5) Dynamic damping ratio increases slightly with increment of water content.

冻土的动力学参数既是工程设计的依据之一,也是数值模拟时不可缺少的参数。本文分析了取自青藏铁路的两种路基土,即粉质粘土和细砂的动弹性模量和动阻尼比变化特征。试验发现,冻结粉质粘土和冻结细砂的动力学参数随频率、温度和含水量的变化规律相同。冻土的动弹性模量随频率的增加或温度的降低而增加。含水量增加时,冻土的动弹性模量先增加后降低,在饱和含水量附近达到最大。冻土的动阻尼比随频率的增加或温度的降低而减小。含水量增加时冻土的动阻尼比略有增加。

 
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