查询词典 nonlinear vibration

A clearance-typed nonlinear torsional vibration model with multiple degree of freedom of star gear transmission being excited by errors of transmission and time varying meshing stiffness was established.

建立了受传递误差和时变啮合刚度激励的星型齿轮传动的间隙型多自由度非线性扭转振动模型，并用自适应变步长Gill数值积分方法进行了求解。

The coupling between eccentric rotation and rigid-body vibration leads to many complex nonlinear terms, and the location of eccentric mass also is an important parameter.

偏心块的转动与刚体的振动相耦合将产生许多复杂的非线性项，偏心激励的位置也是一个重要的参数。

It provides not only fundamental principle and analysis of Modern Applied Mechanics and Dynamics but also applications in research areas such as stability, rigid body and rigid-body systems, movements of celestial body and spacecraft, vibration, nonlinear dynamics, et al.

它的研究一方面提供了现代应用力学以及动力学一般理论最基本的原理和方法，另一方面，它本身也给出了在稳定性、刚体与刚体系、天体与宇航器的运动、振动、非线性动力学等领域中一系列有实用价值的成果。

Analysis program of nonlinear signals is developed on the basis of this method, which it can separate the vibration signals into multiple eigenfunctions.

介绍一种非线性非平稳信号分析的新方法，此方法是基于经验模态分解技术的振动信号分析算法。

Analysis program of nonlinear signals is developed on the basis of this method, which it can separate the vibration signals into multiple eigenfunctions.

其基本核心思想是对信号利用EMD方法求解本征模态函数，并在此基础上对其做希尔伯特变换，以得到时频分析结果。

Nonlinear partial differential dynamic equations of bending vibration of a tilting stepped drive shaft with two supports were built under non-inertia movement coordinate system by theorem of the motion of mass center and Heaviside function. According to the condition of equal displacement in an adjoining plane of the shaft, an equivalent shaft and its equation were obtained. A motion equation of the equivalent shaft was obtained by method of Galerkin. An approximate steady-state solution of the main resonance was obtained by method of multiple scales. The influence factors, motion stability, amplitude jump of main resonance of a stepped drive shaft and so on were analyzed.

用质心运动定理、Heaviside函数建立了非惯性系下倾料两端支承阶梯传动轴的非线性弯曲振动偏微分动力学方程，并根据相邻轴段的衔接面处位移相等的条件，得到阶梯轴的当量轴及其动力学方程；用Galerkin法得到当量轴的弯曲运动方程，用多尺度法求得稳态下当量轴的主共振的一次近似定常解，分析了影响阶梯传动轴主共振的因素、运动稳定性、振幅突变性等。

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。