查询词典 damping-off

Using the models, the author has also calculated the vibration response to high speed railway vehicles of three types travelling over simply-supported beam bridges with various span lengths respectively. Based on the analysis of the computation results, the concept of resonance velocity of a bridge under a high speed running vehicle is present, and it is pointed out that comparatively great vibration of bridges on high speed railways is caused by bridge resonance resulted from the static force pulsating. In a vehiclebridge coupling vibration system, the damping constant of the axle spring is the main factor affecting the response variable of bridge velocity resonance, and the influence of track irregularity on bridge vibration on high speed railways is rather smaller.

利用所建立的计算模型，计算了三种形式的高速铁路车辆通过各种跨度简支梁桥结构时的振动响应，对所得到的计算结果进行了详细的分析，提出了高速行车下桥梁共振速度的概念并指出高速铁路桥梁产生较大振动的原因是静力脉动引起桥梁共振造成的；通过研究车—桥耦合振动系统方程的参数后指出，在车—桥耦合振动系统中，车辆—系阻尼的大小是影响桥梁速度共振时响应大小的主要因素，轨道不平顺对高速铁路桥梁振动的影响较小。

Then, we design a disturbance observer and adaptive control in the acceleration feedback loop to compensate the influence of disturbance and estimate the variation of inertia and viscous damping constant respectively.

并且希望内回路干扰影响与J、B变动影响尽可能降低，故在加速度内回路设计干扰估测器与适应性控制，使得外部位置回路不受干扰与J、B变动影响，提高系统之精度。

A novel model of synchronous machine with damping winding for the transient analysis of power systems is presented.

提出了一种新的适用于电力系统机网暂态过程数值仿真的有阻尼绕组同步电机模型。

In this paper,the modeling of an Electromagnetic Damping Machine by Maxwell 2D of Ansoft corporation is introduced.

0引言电磁阻尼器是一种特殊结构的空心杯电机，其工作原理相当于1台内部短路的杯形电枢发电机。

The carrier frequency is related to the rigidity and damping of the machine.

对于&转速调制现象&，文中从数学上和机理上进一步说明了这种现象存在的必然性。

A method to identify the damping parameters of machine joint surface is proposed based on the tested frequency response functions.

提出一种基于实测传递函数矩阵来识别机械结合面阻尼参数的新方法。

A method to identify the damping parameter s of machine joint surface is proposed based on the tested frequency response functions.

提出一种基于实测传递函数矩阵来识别机械结合面阻尼参数的新方法。

After blowing, the piece may be perched before being treated on some type of damping machine.

给湿干吹之后，布匹在被机器给湿处理之前处于停放状态。

Company has hammered at research and development of damping section of papermaking machine since its establishment , after over 20 year's market exploration and continuous improvement, prominent achievements have been got in design, processing and reform of head box, screen section and pressing section ,it is through the first provincial identification and batch production dehydration equipment manufacturers,?

公司从成立伊始就致力于纸机湿部的研制与开发，经过二十多年的市场探索和不断改进，在流浆箱、网部及压榨部的设计、加工与改造等方面取得了卓越的成绩，是首家通过省级鉴定和批量生产脱水器材的厂家，产品载入科学技术文献出版社的《中国技术成果大会》（1993第15期）。

Eigenvalue analyses, time domain simulations, and analyses compared with the conventional design for fixed-gain excitation controllers are all performed in order that the excellent performances in damping synchronous machine oscillations can be demonstrated.

为验证所提方法的有效性，特徵值分析，时域模拟分析及与传统设计固定式激磁控制器方法间的比较分析均将在文中一一地被加以执行。

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。