By using a numerical method, the effect of changing in magnetic field upon vibration frequency and coefficient of reduction is presented.
最后给出数值结果,表明磁场的变化对振动频率及衰减系数的影响。
Therefore, the differential equations 'coefficient matrix of the free vibration of the spatial rigid body is automatically formed, and free vibration frequency and its type can also be found out.
最后自动组成空间刚体自由振动微分方程的系数阵,并计算出刚体的自振频率和振型。
A simple formula for finding basic frequency is derived by use of relation of root and coefficient, and an example is enumerated to illustrate its application.
对特征方程利用根与系数的关系,导出了一个计算基频的简便公式,并结合实例说明其有一定的实用价值。
When sound frequency increases, the sound absorbent coefficient of porous aluminum alloy increases.
当声波频率增加时,多孔铝合金的吸声系数增大。
Pressure data were analyzed by wavelet transform in wavelet domain. Frequency band energy spectrum and intensity index of ISW based on wavelet coefficient were obtained.
通过基于子波的分析方法,对压力数据进行了分析,获得了基于子波系数的频带能量谱和冲击波强度指数。
The result shows that average absorption coefficient and noise reduction coefficient separately equal to0.58and0.60 and fine property of sound absorption at middle-low frequency.
结果表明材料的平均吸声系数和降噪系数分别达0。58和0。60,且材料的中低频吸声性能优良。
In practice, choosing the static height of the bed layer and the frequency of the gas pulsation properly can increase the heat transfer coefficient.
在实际操作过程中,选择合理的床层静止高度和气流脉动频率对提高传热系数有利。
Based on mechanic equivalent circuit of the longitudinal ultrasonic horn, the resonance frequency and the amplitude magnification coefficient of three kinds of loaded horns are studied.
在纵振型变幅杆等效电路的基础上,研究了三类负载超声变幅杆的共振频率与放大系数。
A modifying coefficient of load frequency is used to describe the effect of load frequency on fatigue behavior in ultrasonic fatigue testing.
采用一个超声加载频率修正系数对超声疲劳性能试验中载荷频率对疲劳性能的影响进行修正。
Influence of factors on fundamental frequency such as tapering coefficient, counterweight on tower top and elastic support were discussed.
分析了附加质量、变截面系数和弹性约束等因素对结构基频的影响。
The article introduced methods of drilling shaker dynamic measurement based on IVC, taking damping coefficient, natural frequency and vibration model as examples.
并以振动筛阻尼系数、固有频率和振型为例,介绍了基于智能控件化虚拟仪器技术的钻井振动筛动态特性检测方法。
The attenuation coefficient decreases with increasing of frequency and the gas density.
衰减系数随频率增加而减小,并且随密度增加而减小。
Moreover, with the increase of the working frequency, the dielectric constants of the PST materials decreased, but the Curie temperature and temperature coefficient basically had no variation.
随着测试频率的增加,测得的材料介电常数略有下降,而居里温度与温度系数基本维持不变。
The variation of temperature coefficient of resonator frequency with tolerance factor was discussed.
分析了谐振频率温度系数随容忍因子的变化关系。
Proposals for formulas of mode of vibration and frequency, figures for distribution of acceleration coefficient and scope of application are rationally suggested.
根据试验结果,提出合理的振型、基频建议公式和加速度分布系数建议图形及大圆筒结构适用范围。
The effect of stiffness constant, viscosity damper coefficient and variable mass on the damped frequency and the relative damping ratio of the system were studied.
研究了系统刚度、粘性阻尼系数尤其是变质量等参数对系统固有频率和阻尼比的影响。
The influence of the water inside and outside of the pipe pile on the frequency is investigated and a coefficient is obtained from experiment.
关于管桩内外水体对频率的影响,文中给出用实验方法求得的影响系数。
To study the influence of rotary inertia on gear flowmeter natural frequency, keep damping and leakage coefficient as constant.
结果表明:与增大泄漏系数、阻尼系数相比,减小转动惯量可以明显的提高流量计的频率响应。
This shows that an earthquake may be predicted by making use of the variations of the frequency attenuation coefficient if the available data are properly processed.
这表明,经过适当处理,是可以根据频率衰减系数的变化来预报地震的。
It finds that the damping coefficient is directly proportional to not only wave frequency, but the filling fraction of bigger damping material.
讨论了不同填充比下固有频率对应的衰减系数关系曲线,得出了衰减系数随着大阻尼材料填充比的增大而增大。
Secondly, the relationship between rotary inertia coefficient, torsional stiffness, transmission gearbox and torsional vibration frequency is analyzed on the basis of the design model.
其次,在双质量飞轮设计模型的基础上,分析了双质量飞轮转动惯量系数、扭转刚度、变速器与系统扭振频率的关系。
The dynamic compliance coefficient curves and the torsional Angle amplitude of a rigid disc versus the dimensionless frequency are presented.
文末数值算例给出了动力柔度系数和扭转角幅值随无量纲频率的变化曲线,并与单相弹性介质情况进行了对比分析。
By changing the cross sectional radius decay coefficient of the exponential metal horns, the longitudinal and torsional vibrations in the transducer could resonate at the same resonance frequency.
通过改变换能器前后指数型盖板的半径减编系数,得出了换能器中纵向与扭转两种振动模式同频共振的条件。
If the inertia of particle is ignored, the electric coagulation coefficient has nothing to do with the frequency of alternating electric field.
若忽略粒子的惯性,则电凝并系数与交变电场的频率无关。
An analogue multiplier circuit has an input coefficient voltage dependent adjustment of its frequency response.
一种模拟乘法器电路,其具有基于输入系数电压的频率响应调整。
The results indicated that with the increase of the frequency, absorption coefficient did not increase.
结果表明,随着温度的升高,吸声系数不再随频率的升高而增大。
The viscosity coefficient of pore fluid in saturated sandstone has an obvious effect on the attenuation, modulus, and velocity dispersion in low frequency range.
饱和砂岩中扎隙液体的粘滞系数对饱和砂岩的衰减、模量和速度色散的影响在较低频段是明显的。
The tuning curves of FIR frequency and the curves of system gain coefficient vs. pump detuning frequencies were given.
本文给出了调谐曲线以及增益系数与泵频率失谐量之间的关系曲线。
By which linear and nonlinear frequency response function was estimated, and nonlinear stiffness coefficient and damping coefficient of the model were optimized by least square method in this paper.
利用该方法对非线性频响函数进行估计,并利用了最小二乘法对模型的非线性刚度系数和非线性阻尼系数进行了优化。
By which linear and nonlinear frequency response function was estimated, and nonlinear stiffness coefficient and damping coefficient of the model were optimized by least square method in this paper.
利用该方法对非线性频响函数进行估计,并利用了最小二乘法对模型的非线性刚度系数和非线性阻尼系数进行了优化。
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