查询词典 vibration-proof

And one kind of slip-stick vibration is associated with one group of corrugation characteristics.

详细地描述了四类轮对粘滑振动的特点。

Then, considering the vibration characteristics of wheel-set and wheel-rail vertical resonance theory, a plastic flow corrugation analysis model has been build up.

根据轨道轮和轮对的振动特性，依据轮轨垂向共振理论，结合有限元模型，建立了塑流型波磨的仿真分析模型。

On the other side, such strong vibration may also become an important factor of abnormal wheel wearing, wheel spalling and rail corrugation of certain wavelengths. An approximate estimation of resonance conditions is given and the influences of ...

本文对轮对纵向共振的形成条件进行了分析，给出了近似计算判据，并对车辆主要参数对共振的影响进行了分析，最后给出了一种抑制纵向振动的建议方案。

Based on the wave equation of longitudinal vibration of variable cross-session rod, the frequency equation and parameter formula of cosine horn are educed, the cosine horn with same frequency and different area ratio is designed by using Matlab language.

根据变截面杆纵向振动的波动方程，推导了余弦形变幅杆的频率方程和重要参数的计算公式。

The theoretical solution of eigenfrequencies and vibration models of rectangular thin plate on foundation with completely free boundary was derived by the double finite cosine integral transform method. In the analytical process, the elastic foundation was regarded as Winkler foundation model.

将弹性地基以Winkler模型模拟，利用双重有限余弦积分变换的方法推导出了弹性地基上四边自由矩形薄板的固有频率和振型的解析解表达式。

If force was a sine or cosine law changes, was stable after the forced vibration also a sine or cosine law changes.

如果强迫力按正弦或余弦规律变化，则稳定后的受迫振动也按正弦或余弦规律变化。

Firstly, modal responses were estimated by the application of robust second-order blind identification technique on the measured vibration signals. And then, modal shapes were extracted from the de-mixing matrix above. Finally, frequency and damping ratios could be obtained from the modal responses using each single degree of freedom mode.

运用该法提取系统／结构模态参数的步骤为：首先利用稳健SOBI的盲源分离方法采集的信号进行分离，然后将分离矩阵作为结构／系统的模态振型矩阵，最后再对各个分离后的单自由度信号提取频率、阻尼比参数。

For analysis of traditional experimental modal, hammer and shaker are often used to force the structure as the clamped-clamped beam to raise the vibration of the structure, meanwhile accelerometer is placed on the structure as a sensor, then the modal parameter could be found.

传统实验模态分析大多使用冲击鎚或激振器施加点力於结构例如固定梁，做为驱动器激发结构的振动，利用加速度计做为感测器置於结构上，以求取结构之模态参数，但传统之模态实验设备都有实验操作不易以及价格昂贵的缺点。

I could not help feeling a born vibration...

我不禁感到出生的振动。。。

At the same time, the dependency of the vibration frequency on the Coulomb bound potential and magnetic field is discussed.

同时也讨论了振动频率与库仑束缚势、磁场之间的变化关系。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。