The logarithmic decrement of the cable is then calculated from the free decay curve of the displacement data.
通过人工激振拉索后,测得拉索的振动波腹点位移衰减时程曲线,计算得拉索的对数衰减率值。
The logarithmic decrement of the first three modes of the cable-damper system was calculated from free vibration decay curve.
通过自由振动衰减曲线计算得到了拉索-油阻尼器系统前3阶模态的对数衰减率值。
At present, for nonlinear bearing rotor system, people usually use the logarithmic decrement of its linear system as the stability rule of system, this has made a great difference of theory and experiment result.
目前对于非线性轴承转子系统，仍普遍采用其线性化系统的对数衰减率作为系统的稳定性判据，这造成了理论和实验结果相差较大。
On the basis of wavelet transform and S transform,through popularizing basic wavelet, the basic wavelet containing 4 kinds of unknown parameters (amplitude, energy attenuation rate, energy-delay time and apparent frequency) was constructed, realizing generalized S transform.
在小波变换和S变换基础上,通过对基本小波的推广,构建含有四类待定参数(振幅、能量衰减率、能量延迟时间及视频率)的基本小波,实现广义S变换。
average logarithmic energy decrement
平均对数能量衰减率
The ratio of the average power loss to the power loss under peak loading.
平均能量衰减与峰值负荷时能量衰减的比值。
A Method of Calculating the Coefficient of Atmospheric Average Attenuation for Certain Spectral Waveband
一种计算某一波段大气平均衰减系数的方法
Ground roll wave has characteristics of strong energy, low frequency and slow attenuation.
面波具有能量强、频率低、吸收衰减缓慢等特点。
Energy Decay Rate of the Plate Equation with Potential and Indefinite Damping;
含位势和不定阻尼项的板方程能量的衰减速率
Hall effect on energy decay in MHD turbulence
Hall效应对MHD湍流的能量衰减的影响
dependency of attenuation on frequency
衰减对频率的从属性
The log decrement are suitable for determining interface bond damage.
对数衰减率适宜于测定界面粘结的破坏。
attenuation compensator
衰减均衡器衰减补偿器
The natural logarithm of this ratio is called the logarithmic decrement.
此比率自然对数称为对数的减量。
The Exponential Decay of Energy for Semi-linear Damping Wave Equation;
半线性阻尼波动方程的解的能量指数衰减性
Power Attenuation of Plasma Antenna Excited by Surface Wave
表面波等离子体天线的能量衰减系数研究
Catastrophes such as fire, flood, drought or epidemic may reduce population sizes to a small fraction of their average level.
大灾难例如：火灾，洪水，干旱或流行病可能减少种群数量到他们平均水平的一小部分。
weighted average of the official rate of the rouble to the US dollar
卢布对美元的官方汇率的加权平均数
Through regression, we found runoff energy cut rate present logarithm relevant to rainfall energy.
经回归分析，径流能量削减率与降雨动能的关系呈对数相关。
Influence of Bubbles Number Density on Measurement of Beam Attenuation in Ship Wakes
气泡数密度对尾流光束衰减测量的影响
pair production attenuation coefficient
电子对生成衰减系数
pair attenuation coefficient
正负电子对衰减系数