阻尼器

In order to get a clear insight into the nature of this cleaning process and provide a solid basis for the industrial applications, this dissertation focuses on the fundamental investigation of the rigid ceramic candle filter, mainly including experimental study, theoretical analysis and dynamic modeling of the unsteady flowfield in the whole pulse cleaning process.

针对刚性陶瓷过滤器在其理论和工程应用中存在的问题，本论文对脉冲反吹全过程中气体引射空间和滤管内外空间的瞬态流场进行了系统的实验研究和理论分析，在此基础上进行了数值模拟并建立了脉冲反吹系统数学模型，提出了改进脉冲反吹清灰效果的阻尼式气体引射器。

Especially fine particles with small inertia is more easily re-deposited on the surface to form thin and dense layer on the filter candle and to increase gradually the residual pressure drop across the candle.

为了减少过渡过程对脉冲反吹清灰的不利影响，本论文提出了一种新型阻尼式引射器。

Keywords: matrix converter; input filter; damping factor; EMI

关键词﹕矩阵变换器；输入滤波器；阻尼系数；EMI

And the effect of the fluid mass and the nonlinear damping on the performance of the isolator is discussed.

由此建立相应的八作动器隔振平台的动力学模型，并讨论流体质量和非线性阻尼对隔振性能的影响。

In this paper, using transient energy function as the assessment of system stability and applying the derivative of TEF to determine the control strategy of Fault Current Limiter with controllable series compensation in transient stability process, the transient stability characteristics can be effectively improved and subsequent oscillation can be quickly damped.

1引言具有可控串联补偿功能的故障限流器(FCL with controlled series compensation)作为灵活交流输电的主要装置之一，装设在并行线路具有许多优点。如图1所示，正常工作时，它能连续、快速、大范围地调节线路阻抗，从而灵活调节线路电流、增强系统阻尼、改善系统动态性能、抑制次同步振荡。

Using natural frequency ratio and damping ratio as design variables, constructing an objective function with the peak values of dynamic magnification factor and the dynamic magnification area of the main system in the whole frequency band, the optimization problem is built.

建立了以固有频率比和阻尼比为设计变量，以振幅动力放大系数函数的多个峰值和整个宽频带下面积构造目标函数的优化问题。给出了两个自由度减振器参数的优化计算实例。

Firstly, PLL linear model is established in order for the comparative analysis between phase step error response and phase rectangular-pulse error response under different damping ratio. The ideal PD waveform expression is figured out.

首先通过建立锁相环的线性化模型，对比分析了不同阻尼系数的相位阶跃误差响应和矩形相位误差响应，推导了理想状态下鉴相器输出的波形表达式。

LS-type on the basis of artificial discharge centrifuge is to meet the needs of modern production in the SS-type three-foot artificial on the basis of discharge centrifuge technology has done to abolish the traditional hoisting of the support structure and replace them with professional design the shock absorber damping.

LS型无基础人工上卸料离心机是为满足现代生产的需要，在SS型三足式人工上卸料离心机的基础上做了技术改造，取消了传统悬挂支撑结构，代之以专业设计的弹性阻尼减振器。

It greatly enhanced the damping force of shock absorber and it is convenient to replacing the foam metal inside this typed shock absorber and it is possible to replacing foam metal of different structure according to different requirements of damping force.

由于该种减振器的阻尼力在一定范围内可由外部磁场快速无级调节，而且这种变化是瞬时可逆的，因此近年来对它的研究和应用开发得到了相当的重视。

The results here show that the blade lag damper can greatly reduce the instability range of a helicopter, and that the pitch angle of blades takes an important role in the stability of ground resonance, as it does in the flap-lag stability of a blade

本章结果表明桨叶的减摆器阻尼可以有效地减小不稳定运动发生的区域。并且，同桨叶的挥摆稳定性一样，桨叶变距角也是影响&地面共振&稳定性的一个重要因素。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。