Their vibration frequencies have been predicted.
预测了它们的振动频率。
The fundamental vibration frequencies are also theoretically computed by the finite-element-method.
此外用有限元法对裂纹板作了理论计算。
The in-plane free vibration frequencies and nonlinear internal resonance of circular arches were studied.
对圆弧拱面内自由振动的频率和非线性内共振现象进行了研究。
The vibration frequencies given by the solutions are in good agreement with the results of three dimensional analysis.
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 red shift of C-O-C stretching vibration frequencies of IR reveals that the coordination interaction may take place.
配位体的C - O - C红外伸缩振动频率向红移，提供了两者发生配位的迹象。
Through free vibration frequencies analysis of 44 PSGs, the general rule of PSGs is achieved and influence factors for PSGs are determined.
通过对44种网架自由振动频率的分析，得出了网架自由振动的一般规律，确定了网架自由振动频率的影响因素。
The influence of an exponential volume fraction law on the vibration frequencies of thin functionally graded cylindrical shells was studied.
研究了指数型体积分数对功能梯度薄圆柱壳振动频率的影响。
A simple method for computing the modal vibration frequencies and sound radiation efficiencies of a thin cracked baffled plate in water is described.
本文提出了一种简便计算置于无限大障板上裂纹薄板水中振动频率和模态辐射效率的计算方法。
In this paper, the vibration problem of a chimney is studied from the aspects of chimney frequencies, wind vibration frequencies and Reynolds number.
本文从烟囱频率、风振频率和雷诺数三方面研究了该烟囱的振动问题。
Simultaneously, the sine sweep vibration tests are carried out to measure the vibration frequencies and amplitude which lead to operation failure of HDD.
同时进行了裸盘正弦扫频振动失效试验，准确测量了硬盘的振动失效频率点和振动幅值。
The effects of temperature on the curve of dimensionless nonlinear vibration frequencies vs dimensionless amplitudes are especially investigated by numerical results.
文中还以大量数值算例研究了温度效应对幅频曲线的影响。
This paper describes the basic characteristics of the various exciting sources of the pumping set, and analyses and calculates the vibration frequencies of the sources.
对五柱塞泵机组的振动激励源进行了分析研究，并对主要激励源振动频率进行了分析、计算；
The conclusion shows that the calculated results of blade intrinsic vibration frequencies bear no relation to the common fix states for the first seven-order blade vibration.
得到的结论是：对于叶片的前七阶振动，通常的叶片固支状态对叶片自振频率计算值几乎没有影响。
The experiments include modal tests, vibration tests by knocking, shaking table tests by inputting white-noises and seismic waves, and tests of cable forces and vibration frequencies.
进行了模态实验、敲击激振实验、白噪声和地震波输入的振动台实验，以及缆索拉力和振动频率的测试。
The effect of the length, the shape, and the location of a crack on the vibration frequencies and the directivity patterns of the sound field radiated from the plate are investigated.
探究了裂纹长度、形状、位置对薄板振动频率和辐射声场指向性特征的影响规律。
Through the modal analysis, it is found that main vibration modes of floating crane structure are swing of rope-load system and vibration of boom, and the vibration frequencies are low;
通过模态分析发现，浮吊结构的振型主要表现为主钩钢丝绳-吊重系统摆动和臂架振动，振动频率都很低；
Moreover the vibration frequencies of the plate are computed using iterative method, which begins with the in vacuo eigenfrequency and continues until in-water eigenfrequency con-verges.
从真空中模态特征频率出发用迭代法直到水中频率收敛为止而得到水中方板的特征频率，进而计算了方板的棤态辐射效率。
Modal analysis not only offers a good ways which can calculate natural vibration frequencies, but also brings forward wholesome advices for researching vibration of high speed cutting system.
模态分析不仅提供了一种计算固有频率的方法，也可为研究高速加工系统的振动提供参考。
He is also reported to have experimented with the relationship between consonance and the natural frequencies of vibration of stretched strings, pipes, shells, and filled vessels.
据说他还对紧绷的弦，管子，贝壳和满载的船的固有振动频率进行了测试。
Although the reason for this result is unascertained, the interaction between the auditory sensation and the vibration sensation at the same frequencies is suggested.
尽管此中的原因尚不明晰，但文中对同一频率下听觉与振动感觉之间的相互影响提出了建议。
To separate these frequencies, we make a local modification to mass and stiffness of the handle and results in the vibration on the handle of walking tractor to reduce considerably.
为使第二阶模态频率避开发动机一阶惯性力频率，文中对扶手架的质量、刚度进行局部修改，结果使手把振动有较大幅度的下降。
Due to vibration at low frequencies and high power, felt was inserted between the brass bands and the sides of the cores.
由于输出牛在低频率和高功率情况下会产生震动，在铁芯边缘和铜带之间塞入毛毡。
Therefore, MTMD is suitable for controlling structural vibration with variable frequencies.
因此，MTMD适用于控制频率变化的结构振动。
An impact vibration test method (IVTM) for measuring natural frequencies of existing piers is proposed in this paper.
提出了一种测量既有桥墩自振频率的新方法，即冲击振动试验法(IVTM)。
Modal analysis is used to determine the vibration characteristic of a structure and its components, including the natural frequencies and vibration modes of the structure.
模态分析用于确定设计中的结构及其部件的振动特性，包括结构的固有频率和振型。
The vibration instances at some special frequencies are analyzed and the sound radiation characteristics at far sound field are calculated by ANSYS.
并且用ANSYS分析了某些特定频率的振动情况以及在远声场的声辐射特性。
By means of the finite element theory, the inherent frequencies and vibration characteristics for existing rail line under different supporting conditions are analyzed.
运用有限元理论，分析了既有线路在不同支承条件下的固有频率和固有振动特性。
By means of the finite element theory, the inherent frequencies and vibration characteristics for existing rail line under different supporting conditions are analyzed.
运用有限元理论，分析了既有线路在不同支承条件下的固有频率和固有振动特性。
应用推荐