振动器

The main causes of the vibration in pipeline system are in two respects : The first is the vibrant force of the medium acted on pipeline system,i.e.exciting signal,such as the vibrant force caused by the gas flow at the compressor ′ s inlet and outlet and at the ramified and nodel points as well as the action of pig passing through pipeline bridge,etc.;The second is the response to the exciting signal,which is relating to the characteristics of the pipeline system,i.e.the rigidity,support,quality and equipments of the system besides the waveform of the exciting signal.

管道系统振动的原因主要有两方面，一是介质对管道系统产生的振动力，即激发信号，如气流在压缩机进、出口，分支节点部位产生的振动力，清管器通过管桥时对它的作用等；另一方面是对激发信号的响应，其响应除了和激发信号的波形有关外，还和管道系统本身的特征，即系统的刚度及支撑，质量及其配置等情况有关。

And the point could be an optional place suitable for a reamer.

钻柱结构一定时，钻柱上存在稳定的纵向振动位移为零的点，可以作为扩眼器安放的参考位置。

The equivalent damping and the equivalent stiffness of damper are in near-direct proportion to the damper load. Four remodelment of the damped blade system are performed for parametric studies.

为了对干摩擦阻尼器的性能参数进行研究，本文结合工程实际将凸肩阻尼叶片的参数做了相应的调整和变形，对调整参数后的系统进行了受迫振动响应的计算和分析。

In this paper it is believed that the onset process is from the unorderly sound waves generated by heated gases, through ordering the sound waves, regenerator onset in a high natural frequency, followed by steady oscillation whose frequency is controlled by resonance tube.

本文认为热声热机的起振过程是从气体被加热产生杂乱的声波开始，经过声波的规则化先从回热器的高频率自激振荡振动，继而扩展到以谐振管内气体固有频率为主导的整个系统的稳态起振。

Numerical Simulations of Flows in the Hartmann Resonance Tube and Ultra-Sonic Gas Atomization Nozzle;2. The gas flow in the Hartmann resonance tube was numerically investigated by the finite volume method based on the Roe solver.

采用基于Roe解法的有限体积法，对Hartmann共振管中的气体流场进行了数值模拟，研究了当喷嘴轴线处存在针型激励器的情况下流场的振动情况，数值计算的结果与理论和相关的实验结果符合得较好。

In this paper the retortion piezoelectric actuators were used to control vibration with the optimal initiative and PIE control method in a single-Link FRM system.

本文提出了用扭转压电振子作为主动抑振的动力源，以代替传统的用关节电机抑振的不足，为此研制了压电式主动关节抑振器，建立了单连杆柔性机械臂实验系统，采用振动抑制最有效的主动控制技术和PID控制算法实施系统的抑振。

ANSYS software was used to analyze the two models. Results When Couette flow was loaded, the stereocilia had a larger angular displacement in non-coupled manner, Von Mises stress were higher on tip link and rootlet, and the characteristics of natural frequency were quite similar on two models.

结果 模拟Corti器振动过程，在相同剪切流的压力作用下，静纤毛在不接触盖膜时表现偏移度较大；两种模型均表现在静纤毛顶连接及小根基部应力较高、固有频率近似。

The accordance of the experimental and theoretical analysis results demonstrates that the method provided in the paper is effective for vacuum-vibration precision seeder design.

试验结果和理论分析结论相互吻合，为气吸振动式精密排种器的理论设计提出了新方法。

The effects of self-excitation of silicon microresonators are considered theoretically.

从理论上解释了微型硅谐振器的光自激励振动现象。

Electromagnetic vibrating sifter from the electromagnet, screen, frame, spring contactors etc., using a higher frequency and smaller amplitude of vibration.

电磁震动筛粉机由电磁铁、筛网、架、弹簧接触器等组成，利用较高的频率与较小的振幅产生振动。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。