振动

Based on the wheel-rail dynamic coupling analysis, the dynamic force loaded on the track bed by different subway tracks is gained which is used in the finite element model.

将轮轨动力耦合分析获得的不同地铁轨道作用在道床上的动荷载作为有限元分析模型中的作用力，计算分析了不同轨道结构地段的地表振动传播特性，结果表明：在50 m范围内浮置板减振效果明显，在50 m以上轨道减振形式对地面振动影响不明显。

Research experiments indicate that the main factors affecting cutting force are feed and vibrating amplitude. The cutting speed and frequency in vibrating drilling are ...

研究结果表明，进给量和振动振幅是影响切削力的主要因素，切削速度和振动频率对切削力的影响较小，而频转比对切削力的影响很大。

The panel assembly further includes a plurality of stud pins embedded into the side-wall of the panel, a spring positioned between the shadow mask frame and the stud pins to interconnect them, and a vibration damping member for damping vibration of the shadow mask by converting mechanical stress applied to the shadow mask into electrical energy.

屏板组件还包括嵌在屏板侧壁内的多个销钉，置于荫罩框架和销钉之间以连接它们的多个弹簧，和通过把施加于荫罩上的机械应力转变为电能以阻止荫罩振动的振动阻尼元件。

The impact proof mass on the gyros performance is discussed on the basis of microgyro dynamic equation and several important parameters in the design of micromechanical vibrating gyros, including equivalent moment of inertia constraint conditions in the inner and outer gimbals, sensitivity, etc .

根据陀螺的动力学方程，从陀螺设计中的重要参数——内、外框架组件的等惯量约束条件和振动灵敏度等角度，探讨了检测质量对陀螺性能的影响，为微机械框架振动陀螺的设计提供了理论依据。

The paper gives stiffness matrix and mass matrix in finite element analysis of the ground vibration problem caused by track traffic by using three-dimension finite element method. Because three-dimension finite element analysis is very difficult, it is transmitted into a quadratic programming, which can be calculated by neural network.

本文融合神经网络技术和遗传算法，对轨道交通引起的地面振动进行了正分析和反演，并利用计算机技术实现了地面振动的三维动画模拟，这主要包括：(1)研究了压缩映射遗传算法，利用Banach空间的不动点定理证明了压缩映射遗传算法可以收敛到全局最优值，弥补了标准遗传算法不能收敛至全局最优值的不足。

First it is studied that the relationship between wire-electrode and guide pulley and the difference of the wire-electrode vibration at different travelling speed.

首先，研究导轮跳动与电极丝振动之间的协同关系以及不同丝速条件下对电极丝振动的影响。

Mechanical vibration is one of the crucial environment factors in the application of the fiber optical gyroscopes. How to improve the precision in the condition of mechanical vibration must be considered in the process of FOG design and application.

机械振动是光纤陀螺应用过程中无法回避的环境因素之一，如何提高机械振动条件下的精度是光纤陀螺设计和工程应用中必须考虑的内容。

One DZJ series of adjustable eccentric torque vibration pile hammers, GPE series of cooling water cycle vibration hammer and MD series hydraulic drill holes in the main exported to Japan.

其中DZJ系列可调偏心力矩振动桩锤、GPE系列水循环冷却振动锤及MD系列中孔液压式钻机主要出口日本。

The normal direction motion of the head block tips is excited by the anti-symmetrical mode.

利用定子的对称和反对称振动模态，在驱动足上形成椭圆振动轨迹。

The Fermi resonance and anharmonicity of the high-lying vibrational levels have also been analyzed.

此外，还进一步分析了振动高激发态的Fermi共振与非谐性振动。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷