极大多数的情况下应用电动振动台，因为它能在一定广的频率范围内工作并且能准确地控制波形。
Electrodynamic shakers are used in most cases because they can operate over a broad frequency range with accurately controlled waveform.
为了分析发电机组振动信号在能量和波形方面的细小变化，从而反映发电机组的早期故障趋势，提出了基于数学形态谱的故障特征量。
Fault features based on pattern spectrum were presented for analyzing tiny changes of energy and waveform of generator sets vibration and reflecting the trend of early faults.
通过时域波形和频谱等基本分析手段来探测振动加速度信号中的周期性冲击分量往往是困难的。
It is difficult to detect the periodic impulse component in the vibration acceleration signal with conventional analysis methods such as time domain wave and frequency spectrum.
以纵波形式借由固体、液体或气体传播的物理扰动。声波是由振动的物体产生。
Mechanical disturbance that propagates as a longitudinal wave through a solid, liquid, or gas. A sound wave is generated by a vibrating object.
同时求解了采用该乳胶管弹簧下的超低频标准振动台的运动方程近似解，得到了波形失真度计算式。
The formula of waveform distortion is obtained by the approximate result expression of nonlinear equation about ultra low frequency standard vibrator with this kind of emulsion pipe spring.
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.
为利用电动振动台进行模拟冲击环境试验，给出了一种时域冲击波形合成方法。
An effective shock response spectrum (SRS) time-history waveform synthesis method was presented for simulating shock environment with electro-dynamic shakers.
介绍了传感器的设计原理，并将该传感器在标准振动模拟台上进行试验，给出了传感器的实际输出波形。
The principle of the transducer is given and the transducer is verified by a vibration transducer calibration system with a satisfactory output.
使用TD800测试系统，能够实时地测出转动副轴心的运动轨迹、振动波形以及轴在空间的运动姿态。
The orbit and the vibration of the pin center and the attitude of the axis of pin in the revolute joint are measured by the TD800 test system.
本文主要论述了机械故障诊断中，几类振动信号时域波形的分析与识别方法。
In this paper, several time domain waveforms of vibration signal and its identification method in mechanical fault diagnosis are analysed.
波形失真度是稳态正弦标准振动台计量中影响计量校准精度最主要的因素。
Waveform distortion is a primary factor affecting the measure precision of steady sine standard vibration calibration system.
讨论了旋转机械源(振动激励源与噪声源)混合模式及源波形恢复的问题。
Such problem as mixing model of rotating machine sources (including vibratory and acoustical source) and their waveform restoration is discussed.
通过对采集的振动信号进行小波多分辨率分析和FFT谱分析，得出被测结构振动响应包含的各频率对应的振动波形曲线。
Through wavelet analysis and FFT analysis to the collected structure vibration signal, the vibration wave curves and analysis results of different frequencies are acquired.
对风机的振动量监测可以采用振动信号波形的实时监测，也可采用对峰峰值或有效值的实时监测。
The measuring vibrating signal method may be used on real time, mean while, vibrating signal can be measured by peak to peak value or true virtual value .
重点讨论了旋转机械源（包括振动激励源与噪声源）混合模式及源波形恢复问题。
This paper focused on such problems as mixing models of sources of rotation machines (including vibratory and acoustical sources) and their waveform restoral.
实际的振动波形表明，机组的振动信号具有非平稳性，其波形具有分形特征。
In fact, vibration wave shows that vibration signal of power sets is non-stationary and has fractal characteristics.
测得了机组的振动量值，对测得的振动信号进行了波形分析、转速谱阵分析及轴心运动轨迹分析。
Tested vibration signal wave form analysis, speed spectrum matrix analysis, and shaft centerline orbit analysis are made.
波形失真度是影响超低频振动计量校准精度的重要因素。
Waveform distortion of super low frequency standard shaker is an important factor which influences the calibration precision.
在分析了振动信号固有特性的基础上，提出了一种基于频域积分的振动参量转换波形修正算法。
Based on the analysis of the inherent characteristic of the signal, an algorithm that called the modification of the vibration parameter transform based on frequency domain integration is introduced.
方法：参照电声门图的研究方法，利用16个特征点，运用数学分析，建立声带振动波形图分析方法及量化分析公式。
Methods: Refering to the method of electronic glottis graph and mathematics analysis, using 16 characteristic dots, an analysis method and quantitative analysis formula are established.
利用所建立的方法进行振动信号盲源分离的数值仿真，分离后的信号波形与源信号一致。
The method is named as speedup gradient method. Based on the method developed, the numerical simulation of vibration signal blind source separation was performed.
给出了一种用于连铸生产的非正弦振动波形，并对其波形参数和振动工艺参数进行了讨论。
A waveform of non sinusoidal oscillation for continuous casting is given. The relations between the waveform parameters and oscillation process parameters are discussed.
试验结果表明，依照文中所给出的方法构成的振动控制系统，可以精确地补偿激振系统本身的频响特性影响，从而能够使激振器或振动台输出具有任意目标频率特性的波形。
The testing results show that the vibration control system can accurately compensate the frequency response of the shaker system so that any output with desired spectrum can be achieved.
针对三缸往复泵测量信号非平稳时变特点，研究了用小波消噪方法提取反映往复泵动力端状态的振动波形特征。
With a view to time_varying characteristic of the vibration signal measured on triplex reciprocating pump, an approach on the waveform feature extraction which reflects th...
振动波形的在线灵活变化，使工艺试验研究的实现变得非常简便，满足了工艺技术开发的需求。
Oscillation wave being flexibly changed on-line made the realization of technology test research easy. Oscillation system can satisfy need of technology development.
针对各种不同的结构连接形式和振动波形，分别推导了各种节点单元矩阵的表达式。
The joint element matrix equations were developed for various structural configurations and wave types.
第四章阐述了标准振动台台面波形控制策略。
In chapter 4, control strategy for standard vibrator's test table waveform is studied.
第四章阐述了标准振动台台面波形控制策略。
In chapter 4, control strategy for standard vibrator's test table waveform is studied.
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