振动的

It explains the reason of gentle breeze syntony about sustained tubate generatrix in hydromechanical viewpoint,and puts forworld several methods for avoid ing gentle syntony.

用流体力学的观点解释了管母线发生微风振动的原因，并提出了防止和消除微风振动的几种方法。

During recent years, the relative departments have paid attention to the problem that is the coupling flexural-torsional vibration of turbogenerator units.

近年来，机组轴系弯曲振动和扭转振动的相互耦合对机组安全运行影响的问题，引起了有关方面的重视。

In this vibrational world, which is everything, you are far more vibrational beings than you are verbal beings.

在这个振动的世界，这一切，你是振动的存在远远超过言语的存在。

The oscillation frequencies of the model driven by Casimir and electrostatic forces are evaluated, respectively, by continuum mechanics.

提出了一种双层同轴圆柱管振动的力学模型，并用连续介质力学的方法分析了该模型分别在Casimir力和静电力驱动下的振动特性。

A fault diagnosis mothed for hydro-generator units has been put forward according to their vibration frequency spectrum characteristics.

摘要针对水轮发电机组振动的频谱特点，提出了基于小波包分析的水轮发电机组振动的故障诊断方法。

The dynamic capability of the milling process is influenced by a lot of nonlinear factors. Considering the machine tools rigidity, time delay and uncontinuous cutting, etc, a nonlinear model to prodict the vibration is proposed in this paper.

因此，为了预报切削系统中振动的发生，本文考虑了机床刚度的非线性和铣削过程时延、断续切削等非线性因素，建立了一个预报铣削振动产生的非线性模型。

In this thesis the development of Noncontact Monitoring Technologies on steam turbine blade are compared and analyzed by the numbers, the theoretical measuring formula of bending vibrant blade is ratiocinated, and the Principle of Modal Analyzing on steam turbine blades are also summarized.

中文摘要：本文系统地比较分析了汽轮机叶片故障监测技术的发展与现状，并对汽轮机叶片弯曲振动的理论测量公式做了简要推导，就模态综合法在叶片振动分析中的应用进行了阐述。

On the basic of the machine s structure,the mechanical model of damp dynamic multi-degrees freedom is built,the system parameters are analysized and determined. Theory of that the continuous conveyer of disc-tube assembly is a type of nonlinearity multi-degrees freedom vibration is proposed and prove...

根据输送机的结构建立起输送机有阻尼多自由度振动的力学模型，分析确定了系统参数，提出并论证了串联盘输送机是一种非线形多自由振动系统的理论基础。

Those vortices happen to match the natural vibratingfrequencies of the motor's combustion chamber, and that combination causes theshaking.

这些涡流发生在为了与马达燃烧室的振动频率一致时，然后这样的组合就导致了振动的发生。

Results show that the small vibration of this ideal model is non-simple harmonic,and the period of vibration in x direction and y direction are inverse ratio to the amplitude inverse ratio to the amplitude respectively,but influenced a little by them,and the waveform that coul.

本文应用拉格朗日方程方法研究了理想对称四弹性振子做二维运动的变化规律，得到其微小振动的控制方程，用数值解法求解出了振动方程，得到了振子运动的时程响应和轨迹图样。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。