查询词典 forced oscillation

The fundamental theory of forced power oscillation in power system is explained by a single-machine infinite-bus power system model.

以单机无穷大系统模型为基础，阐述了电力系统强迫功率振荡的基础理论，分析了影响电力系统强迫功率振荡的主要因素，并对单机无穷大系统的强迫功率振荡进行了仿真验证。

In this paper, the oscillation of forced neutral difference equations with positive and negative coefficients is studied and two sufficient conditions of this equation to be oscillatory are obtained.

研究了一类具有强迫项正负系数中立型差分方程的振动性，获得了方程振动的两个充分条件。

It was found that the forced thermo-acoustic oscillation had much lower critical temperature for initiation and the minimal temperature was only 60℃.

系统的最低起振动温度约为60 ℃。

A forced vibration is the oscillation of a body under the action of an external disturbing force.

强迫振动：在外加激振力作用下的振动。H—力幅；—激振力的圆频率；—激振力的初相位。

The measurements were performed simultaneously by using a vibrating-wire instrument operating in the forced mode of oscillation.

采用振动弦黏度/密度计对碳酸二乙酯的黏度与密度进行了实验研究，测量的温度范围为263～363 K，压力范围为0.1～20 MPa。

Numerical investigations were carried out for the sloshing problems with various depth, roll amplitude of hold in forced or free oscillation.

通过对不同舱内水深、不同摇幅的水舱强迫和自由晃荡问题的数值计算，发现舱内水深时晃荡力矩有重要影响，在给定的计算频率下，浅水的影响比深水更大。

The effects of forced periodic oscillation of oxygen concentration on the propylene ammoxidation reaction over a Mo-Bi catalyst were investigated in a continuous flow micro-fixed bed reactor at 440℃.

研究表明 9 ：在Mo-Bi系催化剂的作用下，丙烯氨氧化制丙烯是通过氧化还原反应机理来实现的。

The results show that the periodic average yield of acrylonitrile under any forced periodic oscillation of oxygen concentration among this experimental conditions,thus obtained could higher than that under the steady-state condition.

而为完成整个氧化还原循环过程，气相氧分子就必须在不同丙烯吸附中心的再氧化中心上吸附，获得电子，解离后扩散进入催化剂中的阴离子孔穴，如图1所示。从该机理可知，反应气氛中的氧烯比大小对催化剂表面的氧化还原反应过程的循环有重大影响。

Numerical investiga tions were carried out for the sloshing problems with various dept h,roll amplitude of hold in forced or free oscillation.

通过 对不同舱内水深、不同摇幅的水舱强迫和自由晃荡问题的数值计算，发现舱内水深对晃荡力矩有重要影响，在给定的计算频率下，浅水的影响比深水更大。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。