This paper studies the nonresonant periodic solution of the undamped hydropneumatic spring .

本文研究油气弹簧在 无 阻尼情况下的周期解。

This may be damped or undamped forced notion .

它可以是阻尼强迫 运动或 非 阻尼强迫 运动。

This paper investigates a tensor product method which is used to analyse the eigensolutions of undamped discrete vibratory system when its parameters are uncertain .

该文提出用矩阵张量积法来分析当 无 阻尼离散振动系统系统参数发生随机扰动时振动方程的特征解。

Undamped input filter may cause converter system unstable or oscillation .

无 阻尼输入滤波器可能使变换器系统不稳定或者振荡。

On vibrations of undamped multi-degree-of-freedom systems under harmonic excitation

关于谐激励下 无 阻尼多自由度系统的振动

Gupta . Having been used to the vibration analysis of a rectangular cantilever plate the algorithm is shown to be effective for solving free vibration problems of the undamped structure .

Gupta提出的 程序EASI，将算法用于悬臂矩形板的振动分析的结果说明它是求解结构 无 阻尼自由振动问题的有效方法。

The exact solution of linear undamped forced vibration response is developed and the damped forced vibration as well as the self-excited oscillation are obtained numerically .

推导了 弹性 轴向 行进 索 无 阻尼线性受迫振动解，用数值方法求得有阻尼 行进 索受迫振动和自激振动响应。

With the HHT - α method and the proposed model the dynamic nonlinear analysis of general structures can be transformed into the conventional quasi-static nonlinear one of undamped structures .

利用建议的本构模型，通过 HHT-α方法可以将结构的动力非线性分析转化为常规的 无 阻尼结构动力学问题来处理， 十分 方便 有限 元方法实现。

The trusses are discretized into space bar elements . In the part of dynamic analysis the undamped forced vibration of structure under seismic loading is considered .

把桁架离散为空间杆单元，在动力分析部分考虑了结构在地震力作用下的 无 阻尼强迫振动。

A model together with its computer program is proposed in this article in light of the original coordinate analysis to find the numeric solution for the transient response of an undamped multi-DOF system .

本文采用原坐标分析法建立了 求解 无 阻尼多自由度系统对任意 激 振的瞬态响应的数学模型，并编制了其相应的计算机程序。

In the case of negative-stiffness the method is convergent and unconditionally stable . It is easy to apply the method to the analysis of dynamic responses of damped and undamped system .

在负刚度条件下，该方法是收敛的和无条件稳定的，它不仅适于分析有阻尼系统的动力反应，而且还适于分析 无 阻尼系统的动力反应。

The numeric solution and its computer program for the transient response of an undamped multi-DOF system to arbitrary distrubing forces

无 阻尼多自由度系统对任意激振的瞬态响应数值解法及其程序设计

Using complex modal analysis the inconsistency of frequency for damped and undamped system was studied .

采用了复模态理论分析了 驾驶 室 悬 置系统有阻尼和模态频率与 无 阻尼模态频率不一致的现象。

When driving is strong enough the population difference exhibits undamped large-amplitude coherent oscillation .

当驱动足够强时，粒子束翻转则可以出现 无 阻尼的大幅度相干振荡。

A small-step searching method is introduced to find the best locations and structure parameters of the undamped vibration absorbers .

并利用小步长搜索法来确定 无 阻尼吸振器的最优结构参数和位置参数。

Monte-Carlo Simulation of the Undamped Brownian Particle 's Two-dimensional Motion

无 阻尼布朗粒子二维运动的Monte-Carlo模拟

The Effect on the Amplitude of Vibration Span of Resonance-Approached of Simple Harmonic Vibration of Undamped Single-Degree-of-Freedom System

振动时间对 无 阻尼单自由度简谐振动共振时振幅的影响

The use of the free undamped normal modes is seen to ensure that the linear and angular momenta of the distortional motion vanish .

看来采用自由 无 阻尼正规模态可保证变形运动的线动量和角动量为零。

The undamped exponential model and CLEAN method are used in the extraction algorithm to transform 1-D scattering center extraction into non-linear optimization problem with genetic algorithm .

它采用 非 衰减指数和模型与CLEAN方法，将每个散射中心的提取转化为一个非线性优化问题，并利用遗传算法进行优化求解。

The relationship between the damage index and damage was studied by the analysis of the modal 's undamped free vibration .

通过对模型的 无 阻尼自由振动分析研究损伤指标与损伤之间的关系；

The undamped natural frequency and damping ratio are obtained in comparison of Laplace transform with Z-transform .

然后根据Laplace变换与Z变换的关系，可以得到系统的 无 阻尼自然频率和阻尼比。

Forced Vibrations of a Undamped Dynamometer Subject to Harmonic Excitation ; The Analysis of Nonlinear Dynamics in the System of Externally Excited Pipes Conveying Fluid

简谐激励 无 阻尼测力机构的强迫振动输流管道强迫振动的非线性动力学特性分析

Finally IRBM is used to analyze the static and undamped free vibration problems in this study . 2 .

本文将求逆缩减基法用于结构静力分析和 无 阻尼自由振动分析。（2）提出了系数缩减基法。

According to the dynamic characteristic of original model a simple modification method by a set of linear equation transform of undamped structural system is presented .

通过对 无 阻尼 自由 振动 方程的讨论，应用原结构模型的 振动 测试 信息，进行一系列线性方程的变换研究，提出一种 适合建筑结构模型动态特性快速调整的简易方法。

The optimization design of location parameters and structure parameters are discussed in this paper for the undamped vibration absorbers attached to the continuous systems under the simple harmonic excitation .

本文讨论了连续系统在简谐激励下， 无 阻尼吸振器位置参数和结构参数的优化问题。

The response of two-degree-of-freedom undamped systems to harmonic excitations and to general initial conditions is presented by the undetermined coefficient method . The coordinate transformation is applied to demonstrate that dynamic vibration absorbers cannot eliminate vibration of the principal system for general initial conditions .

用待定系数法给出了一般初值条件下 无 阻尼两自由度 振系对简谐激励的响应，并用坐标变换法证明在一般初值条件下动力吸振器不能完全消除主系统的振动。

According to the theory and methods of the algebraic inverse eigenvalue problems in this dissertation we study the eigenstructure assignment problems on linear systems undamped structural systems and damped structural systems .

本文运用代数特征值反问题的理论与方法，研究了一阶线性系统、 无 阻尼结构系统与阻尼结构系统的特征结构配置问题，全文主要包括以下内容。

We also proof that in the two point boundary value problem of undamped uncertain dynamical systems .

同时，我们也证明了 无 阻尼不确定动力系统的两点边值问题在边值是 模糊 数时这两种意义的 解 是 相等的。