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。
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.
为了选取大跨屋盖结构脉动风振响应的主导振型，提出了振型能量参与系数及其累积参与系数的计算方法。
The mode energy participation factor and the cumulated factor are presented in order to identify the dominant modes of fluctuating wind-induced response for a large-span roof.
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。
Proposals for formulas of mode of vibration and frequency, figures for distribution of acceleration coefficient and scope of application are rationally suggested.
在负载为纯力抗的状况下，利用纵振型变幅杆等效四端网络，对频率方程和放大系数进行了研究。
Based on equivalent four-terminal networks of the longitudinal ultrasonic transformer, the resonant frequency equation and the amplitude magnification coefficient, with reactive load, are studied.
通过结构振型参与系数量化了各个结构的高阶振型的影响。
By modal participation factors, the influence of higher modes is quantified.
通过结构振型参与系数量化了各个结构的高阶振型的影响。
By modal participation factor, the influence of higher modes is quantified.
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。
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.
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 article introduced methods of drilling shaker dynamic measurement based on IVC, taking damping coefficient, natural frequency and vibration model as examples.
介绍了斜拉索粘性剪切型阻尼减振器的减振原理，并对拉索阻尼器的最佳阻尼系数进行了分析；仿真计算表明，阻尼器具有良好的减振效果。
The vibration-absorption mechanism of viscous shearing damper of stay cables and the optimal damping constant of cable viscous damper are analyzed in the paper.
研究结果表明：高层建筑结构抗震设计中高振型的影响不容忽视，在底部剪力和顶端位移误差小于5%的情况下，累计质量参与系数应大于90%；
The decision principle of mode number is: when the error of base shear and top displacement are both below 5%, the sum of modal participating mass ratio should exceed 90%;
计算结果表明，在粘弹性阻尼作用下，衰减系数随振型阶数而增大，振动频率随之不断减小；
The results show that, due to the effect of viscoelastic damping, the attenuation coefficient increases with the increasing of modal order, while the vibrational frequencies decrease with it;
计算结果表明，在粘弹性阻尼作用下，衰减系数随振型阶数而增大，振动频率随之不断减小；
The results show that, due to the effect of viscoelastic damping, the attenuation coefficient increases with the increasing of modal order, while the vibrational frequencies decrease with it;
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