The transfer of shearing and moment must be considered in dynamic analysis because the model of dowel bar affects the modal frequency and modal shape directly.
指出传力杆模型对模态频率和主振型有直接影响，动力分析中应当考虑接缝的剪力传递和弯矩传递。
We can get frequency response, power spectrum density (PSD), modal coordinates, etc. by modal analysis module of ADAMS.
利用ADAMS做模态分析，可以求得频率响应、功率谱密度(PSD)、模态坐标等信息。
The finite element model of body-in-white of a SRV is established. The implicit frequency and vibration types are obtained by modal analysis.
建立了某运动休闲车(SRV)白车身的有限元模型并进行了模态分析，得到了SRV白车身的固有频率和振型。
Structural FE analysis on an integral bus is performed, in which optimal design of multiple performance objectives of structural strength, vibration modal frequency and mass is researched.
对某全承载式大客车进行了结构有限元分析，研究了该客车结构强度、振动模态频率、质量等多个性能目标的优化设计问题。
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。
First, using second constrain, the static state and dynamic analysis applied to the frame of a few thickness plates with FEM modal analysis, distortion, stress, vibration and frequency were gained.
首先在第二种约束方式下，利用有限元模态分析方法对几种不同板厚的机架进行了动、静态分析，得到了机架变形、应力及各阶振型与频率。
In the analysis resonant frequency, modal loss factor and harmonic response of structures are studied.
在分析中分别针对结构的固有频率、模态损耗因子以及简谐响应进行了研究。
Finally, the modal analysis is obtained and the resonance frequency is determined by using finite element software ANSYS.
再用有限元软件ANSYS进行模态分析，确定了共振频率。
With Dynamical modal analysis of electron gun by use of ANSYS software, we can get the inherent frequency and vibration model, which can avoid sympathetic vibration.
利用ANSYS软件对电子枪进行动力学模态分析可以得到电子枪的固有频率和振型。从而在结构设计上避免共振。
The former 20-order intrinsic frequency was extracted, and the transient analysis and stochastic vibration analysis basis on the modal were taken.
提取车身骨架前20阶固有频率，并在模态分析的基础上进行瞬态响应和随机响应分析。
Static and dynamic frequency and dynamic stress are analyzed by using the modal analysis method and the transient dynamics method.
通过模态分析、瞬态动力学的方法，分析了叶片的动频、动应力。
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 nature frequency, normal mode and dynamic response of gear system are studied by theoretical modal analysis method combined with experimental modal analysis method.
采用试验模态分析和理论模态分析相结合的方法，研究了齿轮系统的固有特性和动力响应。
Operational modal analysis method of bridge was built based on frequency domain and spatial domain decomposition.
利用频域-空间域分解法，建立桥梁运行模态识别方法。
A rigid body parameters identification method based on muhi-reference least-squares frequency domain scheme (one of the operational modal analysis techniques) is presented.
介绍一种基于多参考点最小二乘频域法(一种工作模态法)的刚体参数识别方法。
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；
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。
In this paper, the FEM and the experimental modal analysis techniques are employed to analyze the frequency response of the Fuel Rail Assembly. A simplification method is introduced.
采用有限元方法与模态试验技术，分析了燃油分配管总成的频率特性。
The modal frequency response and its sensitivity analysis for the coupled system using the direct method and the eigenmodes.
分别采用直接法和模态叠加法，计算声场-结构耦合系统的声压响应水平及其敏度。
Then the new structure is simulated with modal analysis by finite element analysis software ANSYS, and the resonant frequency and the first vibration map are presented.
利用有限元分析软件ANSYS对这种结构进行模态分析，得到其共振频率和一阶振动图；
Compared the modal analysis result, we can get the resonating frequency under the outside excitation.
结合模态分析结果，得到落砂机框体在外界激振下引起共振的频率。
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 calculated lower-frequency bending vibration modes of the powerplant are consistent with experimental modal analysis results.
对该动力总成的主要低频弯曲振动模态的计算结果得到实验模态分析结果的验证。
Based on the analysis results, I got the switch inductance from the CLR modal, designed low resonant frequency MEMS capacitive switches and wideband MEMS capacitive switches.
在此基础上，分析了开关的结构参数改变对散射参量的影响。并且提出了等效电感的计算方法，低谐振频率电容式MEMS开关和宽频段电容式MEMS开关的设计方法。
Then modal analysis is performed by using finite element method. In this way, the relations between parameters and structural vibration frequency are figured out by parameter analysis.
利用有限元计算软件进行了结构模态分析，通过参数分析找到了各参数与结构振动频率之间的关系。
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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