查询词典 nonlinear vibration

Because the successful application to nonlinear analysis of structure vibration and active control takes into account the time-delay,the high order single step method shows good stability, high precision and high computing speed, etc.

由于高阶单步法已成功地应用于结构非线性分析及考虑时滞的主动控制等，显示了它的稳定、精度高和计算迅速等特点。

On the assumption that the unevenness of runway profiles along the direction of taxi - ing is a stationary random function,techniques of piecewise constant-speed taxi ing runs and piecewise linear representation of dynamic properties of airplane landing gears are adopted in this paper to approximately simplify the actual nonlinear and nonstationary random vibration prob-lems to the piecewise linear and stationary ones.

在飞机滑行方向跑道路面不平度为平稳随机函数的假设下，采用滑行过程分段等速化、起落架动态特性分段线性化方法，把原非线性非平稳随机振动问题，简化为分段线性平稳随机振动问题。

The results show that electromagnetic vibration of hydropower generator rotors exhibits nonlinear characteristics, including the jumping phenomenon of amplitude-frequency curve and the obvious soft characteristics.

结果表明，动态偏心条件下水轮发电机转子的电磁振动呈现非线性特征，幅频曲线在一定条件下将出现跳跃现象，系统呈现明显的软特性。

Discussing the way to develop the nonlinear mathematic model of the governor in the hydroelectrical simulation system and improve it, the phased analyzing/fitting method is introduced in modeling process to deduce the mathematical models of governor start-up and load rejection so as to solve the problems of overspeed starting and nonconvergent vibration during load rejection.

在建模过程中采用分段解析、拟和的方法，推导出了水电仿真中水机调速器开机和甩负荷过程数学模型，解决水机调速器中开机过速和甩负荷过程中振荡不收敛问题。

The signal caused by the vibration of locomotive rolling bearing is usually a nonlinear and nonstationary time series.

机车滚动轴承引起的振动信号往往是一种非线性、非平稳的时间序列。

It is shown that because of the high nonlinear of oil film force of SFD, the nonsynchronous response and the bistable operation may occur in the rotor-SFD system, especially the latter with high vibration amplitude, which has a great effect on the reliability of the rotor system.

结果说明了由油膜力的高度非线性所引起的非协调及双稳态，特别是当转子需要频繁的通过双稳态区时，双稳态跳跃将使转子系统的振动迅速增大，在实际应用中应对其引起足够的重视。

Under this background, the main research direction of this dissertation is to study on dynamics modeling of ERF damper and vibration control of its nonlinear isolation system theoretically and experimentally.

在此基础上对ERF阻尼器所构成的非线性隔振系统进行振动控制的理论与实验研究。

The results show that nonlinear dry friction between mandril and tube conduces to the self excited vibration of tube and the drawing speed is the main factor which determines whether the mandril static balance is stable.

分析结果表明，抖纹产生的主要原因是芯棒与钢管之间的非线性干摩擦力导致芯棒产生自激振动；钢管的拉拔速度及钢管表面润滑层的好坏是决定芯棒的静平衡位置是否稳定的关键因素，提高拉拔速度可将干摩擦阻尼转化为粘性阻尼，同时也使拉拔速度远离临界速度，从根本上消除抖

Base on nonlinear electro-magneto-elastic soupled dynamic equations of the plate and the expression of electromagnetic forces, the vibration equations of the thin beam plate under uniform transverse magnetic field and mechanical loadings are obtained.

在给出薄板的非线性电磁弹性耦合运动基本方程及电磁力表达式的基础上，得到了横向稳恒磁场和机械载荷共同作用下梁式薄板的振动方程。

nonlinear elastic rectangular plate,free vibration,fixed point theory,operator,natural frequency

本文就非线性弹性矩形板的自由振动进行了研究，考虑了材料非

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。