固有频率

Through the analysis of vibration modality, the results depicts that the conveyor goes cross shake under its first natural frequency, and it also occurs a big deformation at the joint of cone and cylinder sections.

螺旋输送器的模态分析的结果表明螺旋输送器在第一阶固有频率下是发生横向振动，柱锥内筒连接处变形较大。

The formulation of design sensitivity of natural fnequencies and frequency response function is derived with respect to design parameters induding stiffness of shafts, average gear meshing stiffness, damping constant and inertia of gears etc.

推导了系统扭振固有频率及频响函数相对于设计参数的灵敏度计算公式，这些设计参数可以是轴的扭转刚度、齿轮平均啮合刚度、阻尼及齿轮转动惯量等。

The results show that the vibration intensity of the substructure has a connection with the depth of the well, the geological condition and the density of drilling fluid; the horizontal vibration of the substructure is mainly caused by bent kelly; the included angle between the axis of cardan shaft and the derrick floor is also the cause of the vibration in three directions, and the cause of t...

分析结果表明，底座的振动强度与井深、地质条件和钻井液密度有关；弯曲的方钻杆是造成底座水平方向振动的最主要原因；万向轴因与钻台面存在夹角，从而引起底座在三个方向的振动；采用四挡钻进时，万向轴的工频及其倍频接近底座垂直方向的固有频率是引起底座在该方向振动强烈的原因。

Both theoretical and experimental analyses on the natural frequencies and modes of the disk-shaped bevel gear are presented by using thick conical shell theory considering transverse shear d-eformation and rotational inertia, and using experimental modal analysis respectively.

本文介绍了用考虑横向剪切变形和转动惯性的厚锥形壳理论来分析盘形锥齿轮的振动固有频率和振型，并用试验模态分析技术进行测量。

The stiffness, natural frequency and rotor dynamic characteristic of such type of power driving shaft were investigated by finite element analysis and experiment validation.

文中采用有限元计算分析与试验验证相结合的方法，研究这种结构的动力传动轴的刚度、固有频率和转子动力特性。

Under four extreme working conditions,the dynamic response of elevator car and the natural frequencies of the instantaneous systems are calculated.

对于电梯运行的各种工况下，文章对振动的响应都作了分析与计算，并对瞬时系统固有频率也作了计算分析。

The adsorbates can change physical properties of the micro-cantilever, such as a bending of the cantilever or a resonance frequency shift.

当被测物附着在微悬臂表面的敏感层时，微悬臂质量的变化会改变其物理特性，即产生自由端的位移变形，或者引起固有频率的偏移。

According to such character of the city viaduc,This article use the large-scale analysis software ANSYS established a model which calculate and analysis,Calculate the natural f...

本文根据城市高架桥的这种特点，运用 ANSYS 大型分析软件建立了计算分析模型，计算了结构的固有频率和振型，并对其进行了振动特性的分析和研究，为城市高架桥结构的抗震设计提供参考。

The static and dynamic characteristics is better than the traditional cast- iron lathe bed. From the steel fiber polymer concrete's experiment material and the method of preparation the strengthen mechanism of steel fiber was studied with the mechanics principle in brief. This article uses the finite element method to simulate the lathe bed of machine tool, getting the natural f...

从钢纤维聚合物混凝土的实验材料和制备方法入手，利用力学原理简单研究了钢纤维的增强机理，并且利用有限元的方法，对机床的床身进行模拟，得到了不同截面尺寸的固有频率，通过同结构的钢纤维聚合物混凝土和铸铁床身进行谐响应分析，证明了钢纤维聚合物混凝土床身良好的动态性能。

Then a single blade of fan is used to analyze the effects of different length of blade and different chord length of blade on its inherent frequency for the purpose of the study in the course of design.

然后由离心风扇单个叶片入手，研究了叶片长度、叶片弦长对风扇单个叶片的固有频率的影响规律，为下一步研究离心风扇的结构参数提供了依据和思路。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。