针对振动的三要素即振幅、频率及相位分别做了介绍；
The analysis of vibration is introduced by its three factors-vibration amplitude, frequency and phase.
正确确定初相和任意时刻的相位，对于解决振动和波动问题至关重要。
It is important for solving the problem of vibration and wave to determine correctly initial phrase and phrase at any moment.
利用全息照相，我们可以得到燃气轮机叶片振动时的振型、振幅和相位分布。
With the use of holography, the mode, amplitude and phase distribution of gas turbine blade vibration can be determined.
四极声源(30)一种分成四部份而相位交替振动的噪音源。
Quadrupole source (30) a noise source in which four parts vibrate alternately in phase.
结果证明间断相位法的计算模型是正确的，研制的叶片振动状态监测系统有良好的应用前景。
It is right that the modal of discontinuous phase method measures blade vibration parameters and the monitoring system has a good perspective in engineering application.
利用简单的电路构成实时相位检测器，对干涉信号中的相位信号进行同步检测，最终获得实际振动的振幅频率。
The real time phase detector is constructed with a simple circuits. The amplitude and frequency of the vibrations are measured by synchronously detecting the phases in interference signal.
采用基准信号作触发，分别对内、外转子进行同步采样，就可直接获取各转子相应的振动幅值和相位。
Magnitudes and phase values of unbalanced weights are obtained directly by sampling the vibration signal synchronized with reference signal.
转子动平衡的关键是提取转子不平衡振动的振幅与相位。
The key of rotor balance lies in picking up the amplitude and phase of the rotor's unbalanced vibration.
旧一致实相位于颜色或振动为黑、灰、褐黄和绿色的音调中。
The old consensus sits in tones that are black, gray, brown mucous yellow and green in color or vibration.
相位信息在旋转机械的振动监测与故障诊断中起着重要的作用。
Frequency information plays an important role in vibration monitoring and fault diagnosis of rotating machinery.
本文分析了驻波的形成及其振动、相位、波形、能量驻立的特征。使驻波实际应用中，有一个清晰的概念。
Theauthor quantitatively analysed the formation of stationary wave and its transmission without vibration, phase, wave form and energy to apply theory to practice.
文章重点研究了较高振幅振动柱的锁定现象、波动升力与柱位移之间的相位变化，讨论了方柱涡激振荡、驰振和气动稳定性问题。
This study aims at investigating the lock-in phenomenon, fluctuating lift and the phase shift between fluctuating lift and displacement of the oscillating cylinder.
研究结果表明：外界振动会使谱图的线形变差、线宽增大和相位扰乱，从而降低谱图的分辨率。
It shows that external vibration will result in bad lineshape, large linewidth, and dispersive effect, thus reduce the spectral resolution.
为了提高频谱分析的精度，要求对振动信号进行整周期等相位采样。
In order to improve the accuracy of spectrum analysis, it's better to sample the vibration signals in the way of full cycle and equal phase.
通过数学分析得出振动质点的速度与强迫力之间的相位差。
The phase difference between velocity of vibrate particle and force was analysed.
该电子以相同的频率来作平行于电场的振动，但此振动不见得和原光波同相位。
The electron oscillates parallel to the electric field and at the same frequency, but it does not necessarily oscillate in phase with the light wave.
势阱中的粒子数和相对相位都在平衡点附近振动。
Both the number of particles and the relative phase oscillate near an equilibrium point in the phase space.
基于再生振动机理和相位特性研究，完成立铣加工过程消耗能量分析。
Energy consumed during the process are analyzed on the basis of investigation on regenerative chatter theory and phasic character.
对给定参量的非线性自由振动的相位图特性、振动周期等进行了定量及定性研究。
For the given parameters, the quantitative and qualitative analyses to the phase portrait and motion circle of the nonlinear free vibration are dealt with.
然后令计算网格随叶栅振动而振动。时间推进计算到流场参数随时间作周期性变化，振幅、相位稳定为止。
Time marching is continued until the calculated parameters vary with time periodically with stable amplitudes and phases of vibration.
正是有这一相位差，才使强迫力对振动系统所做的功正好抵消阻尼力对振动系统所做的负功，以保证稳定振动的等幅性。
This leads to the result that the work of force counteracts the work of damp force, and that the swing of steadily oscillation is the same.
质量偏心与转子弯曲的相位差会影响耦合区的大小及耦合区内的耦合振动；
The phase difference of mass unbalance and bend of rotor will affect the size of coupling zone and the coupling vibration in two coupling zones.
叶片间的振动相位差和来流冲角对振荡叶栅的稳定性均有较大影响。
Stability of an oscillating cascade is affected to a great extent by the interblade phase and incidence angles.
对挠性转子轴承系统电磁阻尼器的电流位差常相位移振动控制进行研究。
The control of the constant Phase difference between the current and the displacement of the magnetic damper in rotor-bearing system is studied.
采用相位锁定技术，在一个振动周期内捕捉了12个不同相位时刻的流场图片。
During one oscillation cycle 12 images in sequence are captured by phase-locked technique.
仿真及对柔性转子试验台振动信号的分析结果表明，基于频谱细化和相位差校正的全息谱能有效提高其分析精度，更加精确有效地诊断旋转机械的故障。
With correction of phase difference for the max peak, the amplitude and phase of each order frequency can be acquired. At last, the holospectrum was synthesized.
通过根据可移动板的振动对占空比的反馈控制，可控制可移动板以在适当的相位和适当的振动角振动。
By the feed-back control of the duty ratio according to the oscillations of the movable plate, the movable plate can be controlled to oscillate in the proper phase and at the proper oscillation Angle.
针对齿轮箱升降速过程中振动信号非平稳的特点，将阶次跟踪、角域平均和幅值、相位解调分析技术相结合，提出了基于幅值和相位解调分析的齿轮箱故障诊断方法。
In order to process the non-stationary vibration signals such as speed up or speed down signals effectively, the order tracking technique and Angle domain average technique were presented.
提供一种振动设备，其可通过简单的构成轻易地调节可移动板振动角和相位。
Provided is an oscillating device, which can adjust the oscillation Angle and the phase of a movable plate easily with a simple constitution.
提供一种振动设备，其可通过简单的构成轻易地调节可移动板振动角和相位。
Provided is an oscillating device, which can adjust the oscillation Angle and the phase of a movable plate easily with a simple constitution.
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