查询词典 nonlinear vibration

Based on this theory, a new fluid excitation nonlinear vibration model of rotor seal system was set up.

传统密封动态特性八参数模型是以线性系统稳定性为基础的，Muszynska模型在一定程度上发展了八参数模型，反映了流体激振力的某些非线性特性，但在描述转子密封系统大涡动状态下的非线性特点时，就有很大的局限性。

In chapter six, complicated phenomenon of nonlinear vibration of cracked rotor are investigated by numerical analysis.

由于多尺度分析法只适用于弱非线性系统，因此第四、五章的研究结果仅适用于浅裂纹情况。

Using the generalized degree of A-proper mappings, the existence of periodic solutions for nonlinear vibration is established.

应用A-proper映象的广义拓扑度理论，对多自由度非线性振动系统周期解的存在性给出了严密的数学基础。

Through the Lagrange's equation,the nonlinear vibration equation of a particle non-harmonic oscillator is established;the curves of the restoring force and potential energy varying with coordinates and phase plot are drawn.

利用拉格朗日方程建立了单质点弹簧振子非线性振动方程，作出了回复力、势能随坐标的变化曲线以及相图。应用第一类完全椭圆积分求出了非线性振动周期的精确解。

Probability perturbation finite element method for response analysis of multi-degree-of-freedom nonlinear vibration systems with random parameters

非线性因素会对系统解耦产生影响，因此工程实际中的非线性隔振系统一般为多自由度系统，同时，船舶机械隔振系统的基座应视为具有一定机械阻抗的弹性体。

In the analysis, a nonlinear wave vibration equation of the thin cylindrical shell including damping and items due to geometric nonlinearities was established and then transformed by Galerkin's method. With different combinations of modes different nonlinear differential equations in modal coordinates were obtained. The Runge Kutta method was used to solve the equations numerically and some features of nonlinear wave vibration were discussed.

在研究过程中，首先，考虑阻尼并引入几何非线性项，建立薄壁圆柱壳的非线性波动方程，然后，采用Galerkin方法对波动方程进行转换，选取不同的模态组合，得到相应模态坐标下的非线性微分方程，最后用Runge-Kutta法进行数值计算并对圆柱壳的非线性波动振动特性进行了分析。

The influence of different locations and depths of crack on nonlinear vibration behaviors for the cracked main beam of bridge was analyzed by the numerical calculation.

通过数值计算，分析了裂纹的位置和深度的变化对车桥耦合系统中含裂纹主桥的非线形动力特性的影响。

Parametric identification of nonlinear vibration isolators with memory.

具有记忆特性的非线性减振器参数识别

Power and mechanical engineering ; steam turbine ; rotor-bearing ; nonlinear vibration ; oil whip ; Newmark method

动力机械工程；汽轮机；转子-轴承；非线性振动；油膜振动； Newmark法

Nonlinear vibration phenomena including superharmonics, subharmonics, quasi-subharmonics and chaos in metal plates excited by intensive ultrasonic pulses are studied experimentally and theoretically.

对高功率超声脉冲作用下金属板中的超谐波、次谐波、准次谐波以及混沌等非线性振动现象进行了实验和理论研究。

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。