查询词典 vibration generator

Based on description method of damping motion in mechanical vibration, variables movement of generator are divided into two basic motion models: damping oscillation and critical damping motion. Detail methods of extracting damping parameters from simulation data is introduced to establish variable motion models. An approximate method is put forward to simulate low-frequency signal and generator response characteristic, from which motion models and damping parameters of main variables are obtained. The influences of oscillation amplitude, frequency and initial operating point of power system to the motion damping parameters are analyzed.

借鉴机械振动中阻尼运动的描述方法，将低频振荡下发电机主要变量的运动归纳为阻尼振荡和临界阻尼两种基本运动形态；介绍了从仿真数据提取阻尼参数建立参数运动模型的方法，实现对发电机振荡特性的量化分析；提出一种系统侧低频振荡信号的近似模拟方法，并应用于发电机响应仿真，获得了主要变量的运动模型和阻尼参数；分析了系统侧振荡幅度、频率以及初始工况对发电机功角振荡的影响。

In order to optimizing the vibration isolation of some diesel generator set ,an analysis of the vibration character and excitation forces of it is presented through theory study and vibration testing.

通过对频响函数的测试，获得了某型柴油发电机组隔振系统各阶刚体模态频率和弹性模态频率，分析了该机组振源和振动特点。

Select suitable equipment of vibration seperation and vibration reduction, which can reduce the noise made by vibration of gear box and generator efficaciously.

选择合适的隔振减振装置，有效地降低了齿轮箱和发电机由于振动而产生的噪音。

To begin with, this paper deals with the importance of hydro generator units vibration and noise measurement and analysis. The existing research status, the developing trends and the application prospects for hydro generator units of vibration monitoring are introduced in details.

首先论述了水轮发电机组振动分析的重要意义，详细分析了振动监测的研究现状及发展趋势，并对其应用前景做了进一步分析。

Accordingly, the vibration theory, vibration sources and the part vibration fault features of turbine generator units are analysed, sorted out and finalized so as to lay a solid foundation for the establishment of fault diagnosis expert knowledge bank.

本文首先论述了水轮发电机组故障诊断的重要意义，详细分析了故障诊断的研究现状及发展趋势，并对故障诊断的应用前景做了进一步分析。

The power generator is designed in the form of cantilever beam and excited at first resonance mode to generator maximum vibration amplitude.

首先利用有限元素法分析微发电机结构之第一共振模态，本论文还利用实验量测发电元件的模态并与有限元素分析结果比对。

A new type of hydraulic pulse vibration generator installed at bottom of casing strings was developed.

研制了新型水力脉冲振动注水泥装置，该装置安装在套管底部，在注水泥过程中产生水力冲击作用于套管、水泥浆和钻井液，通过消除气泡、清除泥饼、提高顶替效率和水泥石强度来提高水泥胶结质量。

In this paper, a long divinable time evaluation and a short time prediction of some vibration signals of a turbine generator set is processed by the largest Lyapunov exponent mode. And the results show that the method is certainly accurate and reliable to predict future state of a turbine generator set. As a matter of fact, the method can be used to prediction to future running state of any other complex mechanical equipment.

运用最大Lyapunov指数预测模式对发电机组振动信号进行了最长可预测时间估计和短期预测研究，结果证明基于最大Lyapunov指数的预测模式在进行发电机组时序信号预测中具有良好的预测精度和可信度。

High frequency screen is made up of vibration generator, wet pulp distributor, deck base, pendulum spring, screen cloth and other parts.

高频筛由激振器，矿浆分配器，筛框，机架，悬挂弹簧和筛网等部件组成

A hydraulic resistance instrument composed by two pressure transducers was used to measure the hydraulic resistance across the two kinds of channels. The impedance on both channels was measured by a four electrodes impedance instrument with 5kHz constant current. A vibration generator was put on one set of the channel to produce about 50Hz sound waves. The signal was detected by a crystal pickup on the other set of the channel to examine the transmission of the wave along the two kinds of channels.

使用双压力传感器流阻仪对两种通道的流阻进行测定；使用5kHz恒流四电极方法对两种通道的阻抗进行测量；使用激振器在通道的一端产生一个约50Hz的振动，在通道另一端用晶体拾音器检测振动信号，对两种通道的声音传导特性进行了测定。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了