摄动法

The difference of Runge-Kutta method, the method of multiple scales, the first method of interpolate perturbation, the.

分析了龙格库塔法、多尺度法、插值摄动第一法、插值摄动第二法等4种方法在计算一类非线性振动问题时的差异，给出了每一种方法对应的时程图和相位图，编写了每种方法的Matlab程序。

The matrix perturbation method is effective to solve this kind of problem.

矩阵摄动法是解决这种问题的有力工具。

This effect on the dynamic characters of slider was investigated numerically with perturbation method.

利用摄动法分析了纳米间隙下范德华力对磁头动态飞行特性的影响规律。

First, the modal perturbation method based on Ritz vectors is applied to solve the dynamic characteristics of Timoshenko deep beam including the effects of shear deformation and rotational inertia.

首先建立了钢筋混凝土深梁的求解方程，然后提出了求解Timoshenko梁特征值问题的模态摄动法，最后通过算例，说明不同含钢率下钢筋混凝土深梁的自振特性的变化情况。

The approximate stationary probability density function for the response of multi-degree-of-freedom dissipated Hamiltonian systems to Poisson white noises are obtained by solving the four-order generalized Fokker-Planck-Kolmogorov equation using perturbation approach.

通过用摄动法求解四阶广义福克－普朗克方程，得到泊松白噪声激励的多自由度耗散的哈密顿系统的近似平稳响应概率密度函数。

The real navigation condition for primary parametric rolling and capsizing is found.

采用摄动法和Floquet理论，求出了不同参数激励幅值和强迫激励幅值下的分岔曲面，确定了发生参数激励大幅横摇和船舶倾覆的航行参数。

Based on mass-spring model, a method of automatic mode-selecting method is presented to solve the difficulties of selecting corresponding modes close to the excitation frequency, in adaptive perturbation for mistuned bladed disks.

摘要针对自适应摄动法在失谐叶盘受迫振动分析中，选择接近激振力频率的相应模态数目难于控制的问题，基于质量－弹簧模型，提出一种自动选择模态的方法。

The heat transfer problem in a belieal tube wall is solved using the pertubationmethod. The zeroth-,the first-and the second-order analytic solutions are obtained of temperaturedistribution inside the wall and the heat resistance is calculated.

采用正则摄动法求解了螺旋管壁热传导问题，获得了管壁温度分布的零阶、一阶和二阶的分析解表达式，计算了热阻。

Employing the inverse perturbation method , we have tackled the problem of optimum design of the machine tool spindle.

用逆摄动法进行机床主轴的动力优化设计。

With reductive perturbation technique, we derived a Korteweg de Vries equation (ut - 6uux + uxxx = 0) of the nonlinear vibrating string equation, which is easier to solve than the original form.

本论文运用约化摄动法分别研究了非线性弦振动、等离子体物理、血液流动和非线性电路传输线等领域中的孤波现象。

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。