并用一种新方法求取了该振动系统的复合频率响应函数。
The complex frequency response function of the vibrating system is obtained by means of a new method.
介绍了一种复合频率振网筛，论述了其结构、工作原理和技术特性。
A new complex-frequency vibrating screen is introduced. Gives its constitution, working technique and technical characteristic.
元素组合的频率分布可以发现能够惟一确定数据的复合元素。
Frequency distributions of element combinations may find compound elements that do uniquely determine the data.
分析了复合材料微波检测中电磁参量、电磁波频率和介质薄片厚度的计算方法。
The computation methods of electromagnetism parameters, electromagnetic wave frequency and medium slice thickness in microwave measuring for composite material were analyzed.
最终实现频率、相位、复合波形皆可调节的直接数字合成的信号发生器。
The DDS signal generator which can adjust signal phase, signal frequency and complex wave is designed.
在低频率(或低剪切速率)下，动态剪切测量的复合粘度与稳态剪切测量的剪切粘度是相等的。
The composite viscosity at the condition of dynamic shear test is consistent with shear viscosity at steady shear test at the low shear rate or low frequency.
所以目前频率合成技术的研究主要是复合运用这三种技术来扬长避短。
So the researches on frequency synthesis at present are mainly focused on the complex of these techniques to foster strengths and circumvent weaknesses.
伪码调相-载波调频复合信号的识别特征包括伪码特征和频率调制特征。
The features of pseudo code PM-carrier FM combined signal include the pseudo code and the modulation frequency.
英语复合词在书刊特别是科技书刊中出现的频率较高。
The English compound can be often read in the scientific books and journals.
实验结果表明，改变施加在电流变体上的电压确实可以改变复合梁的整体振动特性，尤其是对第一、二阶频率影响比较明显。
The experimental results indicate that the first and second order natural frequencies increase with increasing electric field intensity, however, the third order one is changeless.
频率和损耗因子是粘弹性材料复合夹层结构的两个重要的动力特性指标。
Frequency and loss factor are two important indices of dynamic property of composite structures, in which the viscoelastic material is sandwiched between the upper layer and the lower layer.
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.
研究具有不确定复合材料参数的某型直升机尾桨的固有频率。
Natural frequency of tail rotor of some kind of helicopter with uncertain composites was studied.
推导了复合梁在温度变化情况的回复力方程和复合梁的振动频率和温度间的关系方程。
The recovery force equations and the relational equations of frequency and temperature were derived from above four constitutive models respectively.
采用高斯径向基函数和一阶剪切变形理论对普通复合材料叠合板的固有频率进行了计算。
The Gaussian radial basis functions and first-order shear deformation theory are presented to calculate the natural frequencies of generally laminated composite plates.
复合材料交流电性能参数随频率的变化规律表明活化炭黑在聚丙烯基体中已形成导电网络。
The variation of ac electrical properties as a function of frequency shows that the conduction network of carbon black has been formed in the composites.
发生渗流效应时，复合材料的介电损耗低于0.4，与频率无关。
For the percolation composite, the dielectric loss value is always less than 0.4, irrespective of the frequency.
发生渗流效应时，复合材料的介电损耗低于0.4，与频率无关。
For the percolation composite, the dielectric loss value was always less than 0. 4, irrespective of the frequency.
在高低周复合疲劳研究中采用了正交试验设计的方法，并以此为基础综合研究了低周应力、高低周应力比、高周循环次数和高周循环频率对复合疲劳寿命的影响及其机理。
Based on the orthogonal test design, this paper studied the effect of low cycle stress, high-low cycle stress ratio , high cycle number and high cycle frequency on complex fatigue life.
结果得出了纵扭复合型超声马达谐振频率与负载的变化关系。
Results The change relations between resonance frequencies and load of longitudinal-torsional ultrasonic motor were got.
研究了由随机分布的电阻薄膜构成的频率选择表面(FSS)对复合材料电磁波吸波性能的影响。
In this paper, frequency selective surfaces (FSS) with random distributed resistive film patch has been proposed, and the effects on composite absorbing material with the FSS have been studied.
用软件在计算机上生成虚拟光栅，将两种频率的光栅合成为投影复合光栅进行测量。
The virtual grating was computer generated, so the grating was very fine and the frequency was easily changed.
用密度泛函方法计算了复合物的基态结构、振动频率和电子跃迁能。
Density functional theory calculations were carried out to examine the structure and normal mode frequencies of the ground state of the complex and its electronic transition energies.
并且克服了时域法要求对QRS 复合波的起点和终点准确定位不易的缺点，以及频域分析法频率分辨率不足的缺陷。
The advantage of this method is that it doesn't require locating accurately the end point of QRS wave of HRECG and overcomes low resolution of frequency-domain analysis.
连字式复合形容词的使用频率最大，其次是连字式复合名词。
Adjective hyphenated compounds are of higher frequency than the other types of HCW.
采用Ansys软件对复合材料夹层结构翼形件进行了有限元模态分析和研究，给出了翼形件的前5阶固有频率和振型。
The finite element modal analysis and research on composite sandwich airfoil parts is performed by ANSYS software. The top 5 inherent frequencies and vibration modes have been presented.
根据复合材料超声直线电机振动体具有两个固有频率的特点，设计了一种能综合调整激励信号幅值及频率的超声直线电机驱动源。
Based on the microcosmic elastic mechanics, a PWM driver of ultrasonic linear motor is proposed in this paper, whose frequencies and amplitudes could be adjusted synthetically.
采用有限元分析软件ANSYS分析了三维机织复合材料悬臂板的动态力学性能，预测了其固有频率和振型。
Dynamic mechanical characteristics of 3d woven composite beams are studied by means of the software of ANSYS and the experimental modal analysis technique.
对夹心式纵扭复合型超声马达的共振频率进行了研究。
Resonance frequencies of the longitudinal and torsional ultrasonic motor were studied in this paper.
对夹心式纵扭复合型超声马达的共振频率进行了研究。
Resonance frequencies of the longitudinal and torsional ultrasonic motor were studied in this paper.
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