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。
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。
The natural frequency of the gas column in simple pipelines was solved using the finite element analysis method. The result agreed with that derived with transportation matrix method.
采用有限元分析方法，对简单管道气柱的固有频率进行求解，其结果与用传递矩阵法求得的结果是一致的。
On the base of sensibility analysis, an optimization for tensioner is performed with the lowest sensibility of system natural frequency as the objective.
在灵敏度分析的基础上，以系统固有频率灵敏度最低为目标对张紧机构进行优化。
The result showed that the three methods could be used in the modal analysis of the above-mentioned structure, and its natural frequency could well be obtained.
结果表明，三种方法均可用于钢管混凝土框架结构模型模态分析，并能较好地得到结构固有频率。
A natural frequency software analysis system of simple operation, fast judgement, exactness and clearness is set up as to meet the needs of generator-end fixed improvement and service.
建立操作简单、判断快速、准确、清晰的固有频率软件分析系统，以适应大型发电机端部固定改造维修后的检测要求。
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。
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。
Through simulative analysis of finite element model and mechanical-electric coupled, the natural frequency of stator energy converter and stator's dimensions and their relation were discussed.
通过对有限元模型进行模态分析和机电耦合分析，探讨了定子换能器的固有频率和定子结构尺寸以及两者之间的关系。
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。
An interval analysis method was proposed for the influence analysis of the model error to the computational results of natural frequency of structures.
给出了一定误差水平下的模型误差对固有频率计算结果影响程度分析的区间方法。
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。
According to the modal analysis, the natural frequency is not coincident to working frequency, so there would be no resonance occur during work.
由模态分析看出，筛箱固有频率和工作频率不重合，因此在工作中不会产生共振。
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。
Calculation of structural natural-frequency is the important content of elastic analysis, and its value directly influences the seismic action in seismic design.
结构的自振频率计算是弹性分析的重要内容，自振频率的大小直接影响到结构在抗震设计中的地震作用。
In this paper, a natural frequency-measuring device for turbine blade is developed, and its constructing and working principles based on spectrum analysis are presented.
简要介绍了基于频谱分析的汽轮机叶片自振频率测量系统的组成和工作原理。
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。
It is found that the analysis results are coincident with theoretical expectation well, which provides references for the measurement of electro motors' natural frequency.
实验数据与理论结果较为一致，证明该实验方法是测定电动机的固有频率的有效方法。
Finite element analysis may aim at minimum weight of framework. Also it can optimize the natural frequency, damp rate, and other parameters related to dynamic characteristics.
有限元优化分析目标可以支架重量为最小的优化目标，还可以对支架固有频率、阻尼比等有关支架系统的动态特性参数进行目标有限元优化分析。
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。
Analysis based on the failure characteristics indicates that the nylon gum on bottom of dovetail and the long term operation can significantly reduce the natural frequency of blade.
故障分析表明：经长期使用的叶片在修理厂大修时，为满足叶片摆动量要求在榫头底面涂尼龙胶，会使叶片自振频率有较大幅度下降；
The mode analysis was processed with current structure analysis software ANSYS. The lower natural frequency and vibrant model were counted.
进而利用比较成熟的结构分析软件ANSYS对管系进行了模态分析，得到系统的低阶固有频率和振型。
Firstly, the modal analysis of the cabinet show that some natural frequencies are in the frequency range of loads, so the dynamic and fatigue performance of the electronic cabinet must be analyzed.
由模态分析得到新旧机柜都有一些固有频率在激励载荷的频率范围之内，故对新旧机柜开展动力学分析；
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。
For accurate natural frequency, it is necessary that the analysis technique incorporate the effect of structural parameter randomness.
为获得准确的频率响应值，有必要在今后的结构动力特性分析中考虑结构参数随机性的影响。
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。
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