阻尼的

On the basis of the mathematical model, the dynamic derivative of the aircraft at the different angles of the tailplane was analyzed using the technique of dynamic derivative simulation.

在非定常建模的基础上，采用动导数仿真，分析了不同平尾偏角时的动导数，结果表明，水平尾翼偏角主要对零动态阻尼所对应迎角有较大影响，随着舵偏角的增大，该迎角减小。

When the speed of cam is increased,the hydraulic tappet stiffness value and damping are reduced.Then the effects of the regular patterns are analyzed.

其液压挺柱的刚度值和阻尼系数值随凸轮轴转速增加是减小的，并分析了形成这种规律的机理。

The first-order of the modal flexibility for a real symmetric undamped structure with distinct eigenvalues was derived based on an efficient algebraic method. The formulae are simple and compact, and it is easy to program. Moreover, it only requires one eigenvector to be known to calculate the sensitivity of modal flexibility.

代数方法解析推导出无阻尼线性系统模态柔度一阶灵敏度的解析表达式，该表达式简洁紧凑，便于编程，而且在计算阶模态柔度的灵敏度时，只需一阶模态信息，具有显著的优点。

The simulation illustrates that the system is stable and has the nice restraint under the condition that the stiffness and damping vary in the scope of 10 percent.

仿真结果表明系统的刚度与阻尼在10％范围内的变化时均能保证系统稳定并具有良好的振动抑制能力，提高了控制器工程实用性。

Basing on the computing model of liquid viscous resistance of the sucker rod string, damping coefficient of power law flow for sucker rod string is created, using the condition of equivalent merit. Mathematics model and emulate model of the vibration of sucker rod sting are established.

以幂律流抽油杆柱液体粘滞阻力的计算模型为基础，并应用等功条件提出了幂律流条件下抽油杆柱阻尼系数的计算方法，并依此建立了聚驱抽油杆柱轴向振动的数学模型和仿真模型。

In this paper, the initial-boundary value problem of a kind of nonlinear fourth-order wave equations with damping and source terms is studied on the base of Beam Equation.

本文在梁方程的基础上研究了一类具有非线性阻尼项和力源项的四阶波动方程的初边值问题。

Finally, the relation of the performance based aseismic design and the structural control is discussed preliminarily.

通过试验，得出了施加给压电陶瓷驱动器的电压与阻尼器摩擦接触面上产生的正压力的数学关系。

The electromagnetic damper studied in this paper belongs to a special kind of coreless generator, which has a drag cup rotor structure.

研究的电磁阻尼器相当于一台内部短路的杯形电枢发电机，具有特殊的转子空心杯结构。

This article applies the elastic-plastic finite element theory to analyze the dynamic response of the large cross-section tunnel under seismic load,and it also discusses the influence of different damping ratios,site conditions and different epicentral distances on the dynamic response.

文章运用了弹塑性有限元原理分析了大断面公路隧道在地震荷载作用下的动力响应分析，并讨论了不同的阻尼比、场地条件和震中距对振动响应的影响。

Simulations , on linear and nonlinear structures dem onstrate that RDRNN is very , effective on , predicting the response of a structure , subject to semi-active control and exter nal excitation.

应用该模型对线性结构和非线性结构在变阻尼控制和外荷载激励下结构的响应进行了数值仿真，表明所提的动态递归神经网络可以达到较高的预测精度。

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。