其共振风速和杆件自身的自振频率有很大关系。
The wind speed which can cause the bar resonant vibration has a strong relation with the self-vibration frequency of the bar.
大型雷达的自振频率是一个关系跟踪性能的重要指标。
The natural frequency of large radar is a very important index which effects the ability of catching targets.
作用于结构上的质量大小对结构的自振频率影响明显。
It is clear that the magnitude of the masses exerted on CSRS influences its natural frequencies greatly.
作为算例计算了四边简支菱形板的自振频率和临界载荷。
The critical load and natural frequency of rhombus plates with simply supported at all edges are calculated.
在预测管壳式换热器的振动时，准确地计算换热管的自振频率是非常重要的。
Calculating natural frequencies of the heat exchanger tube is an essential step in predicting its potential for flow induced vibration failure.
本文运用三维有限元方法离散水体，研究了箱形术体的自振频率及动水压力振型。
In this paper, the natural frequencies and modes of box water body researched by using three-dimensional finite element method.
水下结构的自振频率不仅受流体动水压力和水深的影响，还受其运行速度的影响。
The self-vibration frequency of submarine structures are influenced not only by fluid dynamic pressure and water depth, but also by its moving speed.
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。
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.
最后自动组成空间刚体自由振动微分方程的系数阵，并计算出刚体的自振频率和振型。
Therefore, the differential equations 'coefficient matrix of the free vibration of the spatial rigid body is automatically formed, and free vibration frequency and its type can also be found out.
分析了发动机振源对车架振动的影响，使车架主要模态的自振频率避开了发动机转速范围；
Then the author analyses the effect of the frame vibration and tries to make the natural frequency of vibration beyond the range of engine revolution rate.
结果表明梁的自振频率，荷载的行驶频率和荷载与梁质量比对梁的振动都起着重要的作用。
All results show that the beam dynamic behavior is tied up with these factors: frequency of beam, moving frequency of the load and the ratio of vehicle unit mass to beam unit mass.
根据动力学计算理论，提出一种新的方法来修正跳车法实测频率，以获取较准确的自振频率。
According to dynamics computation theory, this article proposed one new method revises jumps off the law actual frequency, gains the accurate base frequency.
当曲轴配置平衡重后，可以通过调整飞轮惯量，使系统的自振频率不但不下降，还能略有提高。
In a certain inertia of the system, the natural frequency can be increased a little by adjusting the inertia of the flywheel when the crankshaft is fitted with a balancer.
而结构动力特性中的自振频率是反映结构自身特点的重要参数，是研究组合梁动力学问题的基础。
The natural frequency is a critical parameter of structure vibration; it is the foundation to investigate the dynamic response of composite beam.
通过实测复合墙板试点工程结构的动力反应，获得了结构的自振频率、振型和阻尼比等模态参数。
The natural frequency, modal shape and modal damping ratio of the typical structural of composite wallboard (rapid wall) system are got by dynamic behavior measurement.
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。
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.
对于给定算例，计算出的自振频率与三维分析的结果吻合良好，说明所推导的二维解具有足够精度。
The vibration frequencies given by the solutions are in good agreement with the results of three dimensional analysis.
如主频率低到接近或等于多层建筑的自振频率，则有可能发生共振现象，致使多层建筑遭受严重破坏。
If the main frequency is near or equal to self vibration of multiplayer construction, the resonate may be occurred, then multiplayer construction will be severity destroyed.
结合工程实例，采用该模型计算了桩基的自振频率，分析了弹簧等效刚度的变化对模型自振频率的影响。
Meanwhile, the natural frequency was calculated using this method in an example, and the natural frequency affected by the change of equivalent spring stiffness was also analyzed.
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。
Calculation of structural natural-frequency is the important content of elastic analysis, and its value directly influences the seismic action in seismic design.
利用大型有限单元程序ANSYS对框架塔的自振频率进行了模拟计算，并将计算值与试验值进行了对比。
A simulative calculation was conducted of the natural frequencies of the frame towers using large-scale finite element program ANSYS, and the calculated value was compared with the test value.
介绍了动土压力的计算方法及圆柱形人工岛动土压力计算观点，并用能量法计算出人工岛模型的自振频率。
The calculation methods of dynamic pressure of soil and the authors view of calculating dynamic pressure of soil for a circular artificial Island are presented and th.
介绍了动土压力的计算方法及圆柱形人工岛动土压力计算观点，并用能量法计算出人工岛模型的自振频率。
The rule of acceleration response of modelled soil and structure, the dynamic strain of structure and the dynamic soil pressure between soil and structure were obtained.
由于曲轴系统装有转动惯量很大的部件，所以曲轴扭转振动的自振频率比较低，往往会在工作转速范围内产生共振。
The crankshaft system installed with component which has enormous moment of inertia that leads to lower frequence of forced torsional vibration for crankshaft.
文章按七种不同的车辆模型计算了列车分别以五种不同的速度过桥时桥梁的空间动力响应以及列车在桥上不同位置时车-桥系统的自振频率和振型。
Seven kinds of different vehicle models are used to calculate the space dynamic responses of the bridge on which a train moves at five different speeds.
本文通过实际房屋结构中钢筋混凝土楼板的动力测试，表明在实际工程中通过对比动静载测试结果，可以用实测的自振频率对钢筋混凝土板的完好程度做出评估。
In the paper, by contrasting the measured static and dynamic results, it is shown that the RC floors 'damage extent could be evaluated by use of measured natural frequencies in practical engineering.
本文第四章首先对张弦桁架结构的自振特性进行了分析，对其自振频率和振型的特点进行了总结。
In this paper, the natural characteristics of TSS will be analyzed firstly, and then the peculiarity of its frequency and vibration will be summarized.
本文第四章首先对张弦桁架结构的自振特性进行了分析，对其自振频率和振型的特点进行了总结。
In this paper, the natural characteristics of TSS will be analyzed firstly, and then the peculiarity of its frequency and vibration will be summarized.
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