Dynamic characteristics of collaborated system mainly include natural vibration frequency and principal mode, which is the base and precondition of dynamic analysis for collaborated system.
协作体系的动力特性主要包括体系的自振频率和主振型，它是协作体系结构动力分析的基础和前提。
Why is natural frequency important in vibration analysis?
在振动分析中，为什么自然（固有）频率很重要？
The paper puts forward a convenient and efficient method on the analysis of vibration natural frequency for ring ultrasonic wave motor stator.
本文提出了一种用于分析环形超声波电动机定子振动固有频率的简便、有效的方法。
In view of the locally severe vibration of a 125 motorcycle, the paper makes a structure modal analysis with ANSYS to get the natural frequency and the vibration mode of the frame.
针对某125摩托车局部振动比较严重，采用有限元分析软件ANSYS，对该款车架进行了结构模态分析，得到车架固有频率和振型。
The analysis of the (improved) structure shows that the increase of natural vibration frequency is visible, the vibration noise of the shield is suppressed distinctly.
改进后的分析结果表明排气二分管罩的自振频率明显提高，振动噪声得到有效抑制。
But in the analysis, influence of different frequency input on control effect, and relation between the control effect and natural vibration frequency of the structure can't be solved.
但不同频率地震波输入将对建筑物减振效果产生怎样的影响，减振效果和结构物本身自振频率是怎样的关系，这些是以往的时程分析所不能解决的。
The principle of stiffness offset with the positive and negative stiffness parallel were introduced and through analysis the natural frequency and the vibration transmissibility can be reduced.
介绍正负刚度并联相消原理，通过分析可知应用该原理可以有效降低系统的固有频率，减小隔振传递率。
The natural vibration frequency and type, the dynamic characteristics of damping is important, car, wind power calculation and analysis of the earthquake.
结构的固有振型、频率和阻尼是重要的动力特征，是车振、风振及地震分析等动力计算的基础。
The natural vibration frequency and type, the dynamic characteristics of damping are important, Car, wind power calculation and analysis of the earthquake are presented.
结构的固有振型、频率和阻尼是重要的动力特征，是车振、风振及地震分析等动力计算的基础。
This paper constructs several 2d and 3d finite element analysis models with ANSYS, studies the influence of the structure and parameters of BLDCM on vibration mode and natural frequency.
采用有限元分析软件ANSYS建立了BLDCM的二维和三维定子振动的有限元分析模型，研究了BLDCM定子结构和参数对其振动模态和固有频率的影响。
Considering the effect of the vehicle natural vibration frequency and velocity, the simulation and analysis are done on a, E-the two grades of road using this method.
在考虑了汽车固有振动频率及行驶速度后，利用该方法对A、E两个等级的公路路面进行数值仿真。
From these analysis result, we can make a conclusion that the factors affects system natural frequency and the vibration is not unique and linear, but multiple and co-effective.
从这些分析结果中可看出，影响系统固有频率和振动的因素不是单一的、线性的，是多种因素共同作用的结果。
Meanwhile, the modal analysis is used to test the detection arm's natural frequency and structural vibration modes, which provides a reference for the stability test of the bridge inspection vehicle.
同时对检测臂进行了模态分析，测出了其固有频率和结构振型，为检测车工作时的稳定性要求提供了参考。
The vibration modal analysis method and the influent factors of the natural frequency of the rotating rotor of horizontal axis wind turbine rotor blades were presented.
建立了大型水平轴风轮转子／塔架耦合系统的气动弹性模型，推导了转子／塔架耦合系统周期系数运动方程，给出了气动弹性稳定性分析方法。
The vibration modal analysis method and the influent factors of the natural frequency of the rotating rotor of horizontal axis wind turbine rotor blades were presented.
建立了大型水平轴风轮转子／塔架耦合系统的气动弹性模型，推导了转子／塔架耦合系统周期系数运动方程，给出了气动弹性稳定性分析方法。
应用推荐