查询词典 torsional oscillation

If the stiffening system is inadequate, torsional oscillation s due to wind might result in the collapse of the structure.

如加劲桁架力量不足，风引起的扭力振动就会使桥梁坍塌。

By taking photo of shaft by CCD camera, acquire the image signal, and then extract the torsional oscillation information from it using data processing arithmetic.

为分析方法的可行性，进行了原理实验，本文对原理实验的装置、内容及结果进行了详细的介绍。

In the paper a new method of measuring torsional oscillation of the turbine-generator shaft was proposed on the basis of high speed CCD photography.

CCD扭振测量法是一种基于图像技术的方法，利用CCD相机对轴进行拍照，得到含有扭振信息的图像信号。

The causes and essence of the torsional oscillation of large turbogenerator which consider as a kind of complex open system was investigated by using nonlinear science theory.

将大型汽轮发电机系统作为一类复杂开放系统，基于非线性科学分析了该系统的动力学特性，论述了该系统轴系扭振的原因及其本质。

Based on the torsional oscillation theory of diesel shafting,this article analyses the measured signal values of measuring power by shaft s deformation.

在柴油机轴系扭振理论的基础上对通过轴应变来测功的测量信号量进行分析，并通过实例证明了这种分析在对测量信号量进行数学处理中的重要意义。

Keywords rolling mill torsional oscillation wavelet neural network state recognition genetic algorithm

轧机；扭振；小波神经网络；状态识别；遗传算法

The modal properties including modal frequencies and mode shapes of the torsional oscillation system were calculated and analyzed with eigen analysis and impedance matching method.

用特徵分析和阻抗匹配方法对系统各个模态固有特性包括固有频率和振型进行了对比计算和结果分析。

The design of image fountain signal, imaging technique and data processing are three key technologies to carry out CCD torsional oscillation measurement method. By analyzing the design principle, the paper devised an image source signal alternated with black and white strip and it has a good effect. Meanwhile, the system demand of imaging link was analyzed, such as light source, lens and camera etc. In addition, the principles of both the correlation algorithm and generalized correlation time delay estimation based on adaptive technology were studied, and a comparison between them was made as well.

本文中分析了图像源信号的设计原则，并设计了一种黑白相间的倾斜条纹图案作为图像源信号，获得了良好的测量效果；分析了测量系统对光源、镜头、相机等成像环节的要求；研究了相关算法和基于自适应技术的广义相关时延估计法两种数据处理算法的原理，并对两种方法的性能进行了比较。

Based on the shaft partial energy function of the turbine\|generator shaft torsional oscillation.

利用表征重合闸操作影响发电机轴系扭振幅度的等值能量函数，导出了瞬时性故障与永久性故障下重合闸操作对轴系冲击最小的理想重合时刻。

This thesis entirely analysed the torsional oscillation characteristic of the engine and the power train the method both in frequency field and in time field with dynamic simulation soft of AMESim 4.2.1 from france.

摘 要：以某12缸V 型发动机为例，借用法国AMESim4.2.1动态仿真软件，采用频域和时域分析方法，分析了要发动机和传动系统扭振的特点。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐