振动函数

Numerical results of two semi-infinite beams which are coupled at arbitrary angle are presented and discussed.

传播效率和反射效率确定为振动频率和耦合角度的函数。

Taking the problem of vertical vibration of a rod as an example,the physical meaning of the second type of orthogonality of eigenfunctions of the Sturm-Liouville...

以杆的纵振动问题为例，阐明了斯图姆—刘维尔问题特征函数第二类正交关系的物理意义。

Moreover the vibration frequencies of the plate are computed using iterative method,which begins with the in vacuo eigenfrequency and continues nutil in-water eigenfrequency converges.

至于弹性薄板在水中的振动问题，Helisse[6 ] 回顾了研究历史，他用一组特定的三角函数作为基函数采用瑞利-里兹方法求解了有、无障板条件下矩形板在水中的

Based on thefundamental equations of motion of the theory of radial nonhomogeneousspherically isotropic elasticity,and,by introducing three displacementfunctions ψ,G and w,we get a simplifted system of the problem thatincludes an independent second order partial differential equation offunction ψ and a coupled partial differential equation set of functions Gand w.

针对沿径向为非均匀的且考虑温度和体积力影响的球面各向同性弹性体的振动问题，本文从三维基本运动方程出发，引入三个位移函数ψ，G和w，将问题简化为求解一个关于ψ的独立的二阶偏微分方程和一个关于G和w耦合的偏微分方程组。

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。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。