It is found that the system is subjected to the low-frequency excitation and occurs random vibration in the non-linear complex-mode form.
揭示了系统所受的是低频激励，以非线性复模态的形式作随机振动。
A mixing frequency excitation current source is designed according to the analysis of requirements of the bioelectric impedance measuring system.
通过分析生物阻抗测量系统的需求，设计了一种应用于生物阻抗测量的混频激励电流源。
This paper investigates bifurcation and combination re sonance of the hysteretic nonlinear system with three-frequency excitation by Multi-scale Method.
利用多尺度法研究了三个频率激励下滞后非线性系统的组合共振，得到了该系统产生的组合共振解的振幅和频率。
Design, construction and verification test is made to complete a multi-frequency excitation source based on FPGA and to complete a digital quadrature demodulator.
完成了基于FPGA平台的多频恒流激励源和数字化正交序列解调模块的设计、构建与实验验证。
The nonlinear vibration characteristics of resonant silicon microstructure pressure sensor are investigated under single and two frequency excitation signal conditions.
本文研究了谐振式硅微结构压力传感器在单频激励和双频激励情况下的非线性振动特性。
The problems about the selection of excitation signal, limits of measurement frequency and noise influence have been discussed.
最后还讨论了时域法测量电极阻抗的激励信号的选择、测量频率上、下极限和噪声影响等问题。
This is a typical effect seen in frequency response functions measured using random excitation.
这是利用随机激励进行测量的频响函数中可以看到的典型影响。
The effectiveness of the control depends upon the strength and frequency of the acoustic excitation but is insensitive to the emitting position.
声控分离的效果依赖于激励强度和频率，而对激励位置并不敏感。
We design a suit of aviation AC excitation generator system, it insures the output voltage is constant frequency and constant voltage.
我们设计了一套航空用交流励磁发电机系统，以保证输出电压恒频恒压。
We obtain the relation between the frequency of the oscillation and the instric excitation of the system.
我们得到了系统振荡的频率与内禀元激发的关系。
The influences of frequency and voltage of electric excitation signal on electric property of fruits with non-destructive and orthogonal experiment method were studied.
采用无损接触检测及交叉试验法研究了电激励信号的频率和电压对果品电特性的影响。
Descriptions are made of a new instrument based on the lowest order asymmetric plate wave excitation and swept frequency amplitude phase display.
介绍基于最低阶反对称板波激励、扫频幅度相位显示的复合材料粘结质量评价的新方法。
And the method of getting the frequency components of stationary random excitation is realized.
得到了一种寻求平稳随机激励频率成分信息的方法。
The results show that the voltage standing wave effects become the important factor affecting non-uniform voltage distribution when the electrode dimensions and excitation frequency are increased.
计算结果表明：随平行板电极尺寸增加和激发频率提高，电势驻波效应成为影响电极间电势差非均匀分布的重要因素。
A nonlinear parametric excitation equation is obtained for ships in longitudinal waves, and the dynamic stability is analyzed when the natural frequency of heave and roll are approximately equal.
本文建立了在纵浪上航行船舶的非线性参数激励横摇运动方程，研究了当升沉固有频率接近横摇固有频率时船舶的稳定性。
EA mounted on the either end of rotor shaft can generate impulse excitation force or simple harmonic excitation force with different frequency.
电磁激振器安装在转子的伸出端，产生脉冲激励力或不同频率的简谐激励力。
It introduces a kind of powerful complementary DC and constant voltage power device by using the independent excitation and high frequency PWM wave clipper.
介绍一种利用它激式高频pwm斩波技术完成的大功率直流稳压电源装置。
In regard to the excitation experiments, time-Accurate numerical stimulation was carried out to investigate the upstream disturbance frequency effect under different incidence in an annular cascade.
针对某静止环形叶栅的激励实验工作，相应的对扩压叶栅进行了不同气流攻角和激励频率的非定常粘性计算与流场分析。
In this paper, a dynamic calibration method using a finite duration impulse excitation source is presented, which can be used to calibrate the frequency response of high-pressure transducers (HPT).
本文提出了用任意时限脉冲作激励源的一种动态校准方法，用于校准动压传感器的频响特性。
The influence of frequency and voltage of electric excitation signal on electric parameters of apple, kiwi fruit and pear are studied in this paper.
研究了电激励信号的频率和电压对苹果、猕猴桃和梨电参数的影响。
With the bus fed static excitation system, based on field-test data and using frequency domain analysis, the hysteretic characteristics of excitation system wer.
以自并励励磁系统为例，根据实测数据利用频域分析，得到励磁系统滞后特性。
Well, the deformation patterns at these natural frequencies also take on a variety of different shapes depending on which frequency is used for the excitation force.
对了，在这些固有频率处，变形形式也大为不同，依赖于激振力用哪个频率。
And the first order approximate solution in the cases of hard excitation and soft excitation and the frequency resonance equation in the case of resonance are given.
给出了其在硬激励和软激励情况下的一阶近似解和共振情况下的频率响应方程。
Design cars, the natural frequencies should be staggered so that the excitation frequency to avoid resonance and noise.
设计车厢时，应尽量使其固有频率错开激振频率，以避免共振和噪声。
The experiment proved that the gear meshing force, excitation frequency is consistent with the theory. Consistent with the actual prototype model is feasible.
通过实验证明齿轮的啮合力、激振频率均与理论相符，样机模型与实际吻合，具有可行性。
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。
On the premise of no limitation on the peak value of resonance, the method can be used to modify optimal parameters under different angular frequency of excitation.
在不受共振峰值最小限制的前提下，按此修正方法针对不同的激振角频率对优化参数进行修正。
As the loop parameters and the different conditions of external excitation, the may bring the possible frequency, frequency or high frequency ferromagnetic resonance.
由于回路参数及外界激发条件的不同，可能产生分频、工频或高频铁磁谐振。
Through the structural design and mechanical analysis, the formula of the lateral vibration frequency and excitation force has been obtained.
通过结构设计和力学分析，得出了该工具横向振动频率和激振力公式。
The results show that the sandwich composite beam improves the dynamic critical compression of the simple composite beam and the dynamic critical force varies with the frequency of the excitation.
结果表明夹层复合梁大大提高了简单复合梁的临界力，但它也随激励频率而变化。
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