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
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 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
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。
Based on the dynamic characteristic of an original model, the transform analysis of undamped system equation is performed with the frequency characteristic functions at designated modification freedoms, and the general expressions of local mass and stiffness parameters are derived. 该方法根据原结构模型的动态特性,利用与调整点自由度相关的频率特性函数,通过对无阻尼自由振动方程的推导,给出结构局部质量或刚度调整的通解。
The Orthogonality Relations of the Normal Modes of an Undamped System Having Both Lumped and Distributed Parameters 无阻尼混合参数系统的固有振型的正交性
On the basis of natural characteristics analysis, vibration modes of the undamped system are classified into three types, which are named rotational mode of the central members, rotational mode of the pinions and translational mode of the pinions, respectively. 无阻尼固有特性分析表明,2K-H均布行星传动中存在三种典型的振动模式,即中心构件扭转振动模式、行星轮扭转振动模式与行星轮平移振动模式。
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。
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。
A formula of undamped natural vibration for steering system has been derivated based on the mechanical model for motorcycle steering system by which the inherent characteristics for the system are gained. 从摩托车转向系统力学模型入手,推导出转向系统无阻尼自由振动方程,从而得出系统固有特性。
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。
Stabilization Via Dynamic Output Feedback fora Class of Undamped Bilinear System with Time-Lag 无阻尼时滞双线性系统动态输出反馈镇定问题
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
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。
Optimal Design of a Fixed-Fixed Undamped Mass-Spring System Under Mass Restriction 固定&固定型无阻尼弹簧质点系统的质量优化问题
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。