振动的

Through the Analysis and diagnosis and the dynamic balance handling on vibration of No.2 generator in Guangzhou Power Plant, a good result was oblained. It can be used as reference to the same type of unit.

通过对广州电厂2号机组振动的原因进行分析和诊断，并进行现场动平衡处理，收到了较好的效果，对类似机组的振动诊断有一定的参考作用。

A multiminate layer vapor screen technique and force measurement technique for an unsteady flow in the intermitted wind tunnel is presented in this paper.

本文介绍在暂冲式三声速风洞中实现了非定常流动的多片光蒸汽屏显示技术和测力技术，并用这两项技术研究了亚声速时70°后掠三角翼模型俯仰振动的非定常流动现象，探讨了由于三角翼模型俯仰振动产生的涡结构与纵向气动力特性之间的相关关

Mathematical model of nonlinear vortex-induced vibration was presented for predicting the nonlinear dynamic responses of submerged floating tunnel tethers which were subjected to wave, current and oscillatory displacements at their upper end in horizontal and vertical directions.

建立了水中悬浮隧道锚索在波流场中涡激振动的非线性数学模型，考虑了锚索的几何非线性对其涡激振动的影响，并应用有限差分法求解了锚索的运动控制方程。

Effect of tool rake angle on cutting vibration by experiments are done at different cutting speed in machining operation, and corresponding theoretical analysis is conducted.

对机械加工中刀具前角对切削加工振动的影响进行了系统的实验研究和相应的理论分析，结果表明：随着刀具前角增加切削加工振动的振幅逐渐减小。

The dynamics model of missile sealifts system for navy ships connected parallely is established. The dynamics simulation analysis of system is studied. The dynamics characteristic of missile box on the condition of different sea states and place parameters of crane are analyzed. The theory and technology bases for the design of system of missile sealifts or navy ships connected parallely are presented. The controlled multibody system dynamics of the system of missile sealifts with wave compensation for navy ships connected parallely is presented. On the condition of stochastic momevement of depot ship and incept ship and under the action of sealifts and wave compensation, the dynamics of sealifts system is studied by using discrete time transfer matrix method of multibody system. The calculate method of electric machine impule is developed in the process of supplying missile and action of wave compensate. Based on the PLC control system, the control method, which control supply process by testing torque of guide strings is presented.

本文建立了舰艇并靠导弹补给动力学模，进行了舰艇并靠导弹补给及波浪补偿系统动力学仿真分析，获得了导弹箱在不同海况下和舰用起重机不同位置参数的运动规律，为舰艇并靠导弹补给系统设计提供了理论依据和技术基础；建立了舰艇并靠导弹补给及波浪补偿受控系统多体动力学，在补给舰和被补给舰随机运动下，在补给和波浪补偿系统作用下，应用多体系统离散时间传递矩阵法进行了补给系统动力学分析，得到了导弹补给过程中，波浪补偿时，导引电机和卷扬电机输入电机脉冲计算方法；建立了以PLC 控制系统为核心，用扭矩传感器测量导引带产生的扭矩来控制补给过程的控制方法；对系统振动问题进行了研究，提出了通过调整伺服电机参数减少系统振动的方法。

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 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。

A crankshaft of four in-line cylinder engine was applied as an example, and the vibration response of crankshafts with different depth crack was simulated.

以一四缸发动机的曲轴为例，对含不同深度裂纹曲轴的振动响应进行了仿真计算，对其扭振、纵振及弯曲振动的频谱特性进行分析，提取并总结了裂纹曲轴动力学的一些特征。

In this paper,the dynamic stiffness matrix method is used to predict the vibration of the crankshaft system and to calculate the input exciting force from the crankshaft to the slide rod.

在曲轴系统的振动预测中应用动刚度矩阵法，计算从曲轴向滑块的激振力输入，建立了动力传动装置全系统的有限元模型，并采用该模型进行了振动的预测计算。

The sound of the universe is the vibration thought by some to be like the music of the spheres that the Greek Pythagoras described in the 6th century B.C.

宇宙振动的声音被有些人认为是像公元前6世纪希腊毕达哥拉斯人所描述的'音乐之球'；另一种声音Ahata Nad或已破坏声音，是接近地球的下层空气振动的声音。

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