阻尼的

In this paper, we discuss the numerical solutions of the Helmholtz equation with damping boundary conditions:Where G ?

本文主要讨论由时间调和声波产生的具有阻尼边界条件的Helmholtz方程的数值解：其中？

The characteristics of power oscillation of UPFC installed line are analyzed from the point of view of oscillation energy function,and a damping control strategy aiming at oscillation energy descending is developed.

文献[3]基于系统的某一运行工况设计出统一潮流控制器UPFC线性附加阻尼控制器，其缺点是不能很好地适应电力系统的强非线性及运行方式复杂多变的特点。

The NEF method is potential in developing new efficient tools for on-line security analysis and control. In study of the method of damping system low-frequency oscillations, this project has proposed the control strategy of oscillation energy function descent.

项目研究中还应用归一化暂态能量函数对电力系统振荡机理进行分析，设计了增加阻尼平抑电力系统振荡的方法，提出了振荡能量函数的概念，得出"振荡能量函数下降法"的控制策略。

It will be seen that short engagements inadequate damping and high values of "a" result in oscillatory responses.

可以看出，"短"拦截，不适当的阻尼系数和高的"a"值都会发生振荡的响应曲线。

The model of launch vehicle is rigidˉbody motion equati on. The model of stabilizing parachute is mass point motion equation.

其中运载火箭的数学模型是刚体运动模型，稳定伞的模型是质点模型，而伞绳的模型是弹簧阻尼系统模型。

They can also be used in fields range from both high and low temperature to both high and low velocity, sometime even to environment full of radioelement.

多孔质气体静压轴承能明显提高轴承的承载能力，具有更优越的阻尼特性和稳定性，故得到广泛的关注。

By the use of the obtained relationship between reflectively and frequency, the effects of thickness, material coefficients and viscoelastic damping of outer shell on the scattering characteristics of the structure were calculated and analyzed.

利用已得到的散射率函数，计算并分析了外层壳的厚度、材料常数、粘性阻尼等对双层球壳散射特徵的影响。

The controller is composed of a linear PD feedback plus a nonlinear damping term plus a compensator for scalar uncertainty. It doesn't need to compute the traditional regressor.

控制器由一个简单的线性PD反馈+非线性阻尼+标量不确定性补偿控制器构成，不需传统的回归矩阵计算，能够有效地克服通常难于建模的摩擦力和外部扰动影响。

The results of these tests show that the two kinds of dampers can meet the requirement for little displacement,great restoring force and stable energy dissipation.

根据这种思想，为使装置具有耗能能力，装置的一个主要部分为耗能器，它要求在小的位移下能产生较大的阻尼力。

These earthquakes also arouse engineers to resurvey the behavior of end-plate connections. It is well known that end-plate connections have definite flexibility, which can increase damp, prolong period, and decease swing of structure.

端板连接是一种具有一定柔性的连接形式，当框架结构采用这种节点时，可以增加结构的阻尼，延长结构自振周期，减小震幅，从而降低震害，是抗震的理想选择之一。

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。