These natural frequencies are called resonant frequencies.
这些天然的频率被称为共振频率。
At the natural frequencies, there is a peak in the function.
这个函数在固有频率上有峰值。
Objective To increase the natural frequencies of hypergravitation training facility.
目的提高超重训练设备整机固有频率。
Analyses of these curves make the natural frequencies of the shaft brackets available.
分析尾轴架的动刚度曲线，可得到尾轴架结构的固有频率。
The result showed that a flexible shaft-bearing system has two order natural frequencies.
研究表明，在所研究的频率范围内，弹性轴轴承系统存在两阶自然频率。
The differential quadrature method (DQM) is extended to solve the natural frequencies of pipe.
采用微分求积法求解输流管道的固有频率。
The value of reaction spectrum of natural frequencies is calculated by standard reaction spectrum.
依据标准反应谱，得到各阶频率对应的反应谱值。
The natural frequencies of the vibration system are obtained by using the iterative perturbation method.
应用矩阵迭代摄动法，对摆动活齿传动系统的固有频率进行了求解和分析。
The results show that this method is efficient for determining the natural frequencies of the aircraft flight noise.
这种方法为确定飞行器飞行噪声固有频率提供了有效的途径。
Solar arrays are typical flexible space structure with low and closely spaced natural frequencies and light damping.
太阳能帆板是典型的柔性空间结构，其固有频率低且密集，阻尼很小。
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)。
Multiple tuned mass dampers (MTMD) consists of many tuned mass dampers with uniform distribution of natural frequencies.
多重调谐质量阻尼器(MTMD)是由许多频率成线性分布的调谐质量阻尼器组成。
The influence of coriolis force on the natural frequencies of the rotor blades is analysed by the finite element method.
本文用有限元法分析了柯氏力对桨叶旋转面固有振动频率的影响。
We calculated the natural frequencies and mode of vibration for a five stepped Si-beam of Si-piezoresistive accelerometer.
我们用该方法计算了硅压阻式加速度传感器五阶梯硅梁固频和振型。
This paper describes a computer method for determining characteristic Pair (natural frequencies and modes) with geared system.
本文叙述了确定齿轮传动系统特征对(固有频率和振型)的计算机方法。
In this paper, the natural frequencies and modes of box water body researched by using three-dimensional finite element method.
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。
The pounding force spectra after given damping ratio, interval, and time delay, were plotted according to the natural frequencies.
针对阻尼比、间隔距离、时间迟滞，计算了不同的固有频率下的碰撞力峰值，绘制出碰撞力响应谱。
By finite element analysis of circular conical shell, the natural frequencies and vibrational modes of Yongle Bell have been calculated.
本文通过旋转壳体的有限元方法，计算了永乐大钟的主要固有频率和振型。
The natural frequencies of beam are calculated with finite element method in the cases of different crack width and different crack depth.
本文利用有限元法分别计算在不同的裂纹深度、不同的裂纹开口宽度的情况下梁的固有频率。
The natural frequencies of the intelligent beam with the rotary inertia and shear deformation of the beam are lower than that without those.
考虑梁的转动惯量和剪切变形时，智能阶梯梁的频率比没有考虑时的要低。
Influences of various types of damages on natural frequencies, vibration modes, acoustic radiation power and directivity of sound are studied.
考虑到不同损伤存在形式，计算分析了损伤对振动频率、模态以及声辐射特性的影响。
The stiffening reasons of the rotating blade and the influence of the dynamic stiffening effect on the blade natural frequencies are discussed.
探讨了旋转叶片动力刚化效应产生的原因，并分析其对叶片固有频率的影响。
Calculating natural frequencies of the heat exchanger tube is an essential step in predicting its potential for flow induced vibration failure.
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。
By adding temporal periodic signal with natural frequencies to discrete spatial points, the spatiotemporal chaos can be suppressed successfully.
研究表明，通过在空间分立点加上自然频率的时间周期信号，可以控制时空混沌运动。
Using this method not only the natural frequencies, mode shapes, dynamic responses but also the whirl orbits of the rotor system can be obtained.
用本文提出的方法，不仅可以求得系统的固有频率、振型、动态响应，还可以模拟轴上各点的涡动轨迹。
Vortex induced vibration on underwater pipeline is related closely with its natural frequencies which are also related with its mass and added mass.
通过数值计算证明了物体的附加水质量不仅与物体形状有关，在一定条件下还受流体边界的影响。
A new method is advanced for comparing the natural frequencies by the author. Also, the structural dynamic modifications are carried out on the case.
为有效地改善该箱体的动态特性，进行了箱体局部振动固有振型的修改，提出了箱体结构修改的初步建议。
A method using combined parameters of natural frequencies and modal components as input vectors for support vector machine is presented in this paper.
提出一种由固有频率和模态分量构成的组合参数作为支持向量机输入向量的方法。
The dynamic transfer matrix can be used for calculation of exact natural frequencies and mode shapes for asymmetrical thin-walled beams and its assemblages.
动态传递矩阵可以用于计算非对称薄壁梁及其集合体的精确固有频率和模态形状。
The dynamic transfer matrix can be used for calculation of exact natural frequencies and mode shapes for asymmetrical thin-walled beams and its assemblages.
动态传递矩阵可以用于计算非对称薄壁梁及其集合体的精确固有频率和模态形状。
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