In the analysis of the stress and deformation under dynamic loading, the inertia force and damping moment should be considered in addition to the transverse shear effect.
在分析动载荷下的应力和变形时，除考虑横向剪切效应外，还须考虑微段的惯性力和阻尼力矩。
For fixed damping and fixed excited frequency the motion of the beam under small amplitude of force is periodic, but becomes chaotic through period doubling bifurcation with increase of the force.
对固定的参数激励频率和阻尼，当参数激励幅值较小时梁的运动是周期的，但大幅值激励会使运动通过倍周期分岔变为混沌。
The device provides damping by dissipating energy under seismic braking or other dynamic loads.
该装置通过耗散地震、制动或其它动荷载条件下的能量提供阻尼。
Under each water level, the foundation radiation damping brings overall reduction of the dam body's earthquake responses, while having no noticeable effect on the response patterns.
对所有水位，地基辐射阻尼都带来坝体地震响应的全面降低，但不影响反应的总体规律。
The work principle of the viscous fluid damper under shock load is analyzed and the damping expression is derived, the parameters of which are determined using shock tests.
分析了冲击载荷作用下粘性流体阻尼器的工作原理，推导了阻尼力公式的表达式，运用落锤冲击试验确定了其中的参数。
The dynamic properties of ER (electrorheological fluid), such as the damping force response and spectra of damping force, have been studied under the sinuous input excitation signal.
对聚苯胺体系电流变流体在正弦信号作用下的阻尼力响应及其频谱特性进行了理论和实验研究。
The correspondence between viscous damping and hysteretic damping models was explained, which lays a basis for evaluating damping ratio of structural control element under major earthquake.
简述了粘滞阻尼与滞变阻尼模型之间的联系和对应关系，作为结构振动控制元件在强震下阻尼推算的理论基础。
Under the assumption of constant torque damping coefficient, the step response of an ultrasonic motor is obtained from the moment equation of the rotor, and also the property is deduced.
从超声马达转子的运动方程入手，在假定转子受定常阻尼的条件下，求解出阶跃响应，并由此推导出超声马达的输出特性。
Damping hinge is installed on closet bowl pool. Thus, pushing the positioning switch under water tank of the closet bowl will lay down the pool insensibly.
在使用时只需按下座便器水箱下方的定位开关，安装了阻尼铰链的座便池便会在重力的作用下徐徐放 下，非常方便。
Resistance current measurement of zinc oxide surge arrestor (MOA) under operating voltage possesses important significance of reflecting the operation state of MOA and whether it incurred damping.
在运行电压下测量氧化锌避雷器的阻性电流，对于反映MOA是否受潮和其运行的状态具有重要意义。
The second problem is the objective description of a particle-wall collision under Hertzian collision force and linear damping.
第二个问题是赫兹碰撞力和非线性阻尼下壁粒子碰撞的客观描述。
Stay cables are susceptible to vibration under wind and traffic loading due to their large flexibility, relatively small mass and very low inherent damping.
由于拉索具有极大的柔性，相对较小的质量，以及非常低的阻尼，其对风荷载及交通荷载引起的振动十分敏感。
PAN L J, ZHANG B M, DAI F H. Loss factor of viscoelastic damping composite material under harmonic excitation [J]. Journal of Vibration and Shock, 2008, 27(2): 57-60.
[16]潘利剑，张博明，戴福洪。 简谐激励下共固化复合材料黏弹阻尼结构的损耗因子研究[J]。振动与冲击，2008，27（2）： 57-60。
The system's global characters are obtained under different input torque fluctuation, backlash, composite transmission error, exciting frequency and damping ratio.
得到了系统在不同的输入转矩波动、齿侧间隙、齿轮综合误差、激励频率和阻尼比参数下系统的全局特性。
The traditional passive damping has the advantage of simple structure, reliable operation and low cost. But, it cannot meet the requirements of comfort under complex conditions.
传统的定刚度被动减振具有结构简单、运行可靠、成本低廉的优点，但是不能适应复杂条件下的乘坐舒适性要求。
Impact experiment equipment was used to study the dynamic mechanical properties and characterization method of a new kind of damping aluminum alloy under impact load.
采用冲击实验装置研究了新型阻尼铝合金材料在冲击载荷作用下的动态力学性能及表征方法。
The damping mechanisms of viscoelastomeric materials under the vibration waves and the formation mechanisms of the wide range glass transition of micro phase separation IPNs systems are reviewed.
阐述了粘弹性材料在振动波作用下的阻尼机理，指出声波法和模量法的统一性。 综述了互穿聚合物网络技术要点，并解释相分离体系宽玻璃化转变区间的形成机理；
The synthesis of under-damping vibrations with the same frequency at two mutual vertical directions is studied and investigated using Model JGYW-2 double-single vibration apparatus.
利用JGYW 2型双单摆振动示波装置对两个相互垂直方向的同频率欠阻尼振动的合成进行了实验研究和理论分析，得到了欠阻尼振动合成的部分图形和表达式。
The work principle of the viscous fluid damper under shock load is analyzed and the damping expression is derived, the parameters of which are determined using shock tests.
在对配电变压器冲击试验方法的研究基础上，提出在电站现场进行试验可以用氖管指示器代替示波器，使试验方法简化，故障判断直观、可信。
The work principle of the viscous fluid damper under shock load is analyzed and the damping expression is derived, the parameters of which are determined using shock tests.
在对配电变压器冲击试验方法的研究基础上，提出在电站现场进行试验可以用氖管指示器代替示波器，使试验方法简化，故障判断直观、可信。
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