查询词典 time of vibration

The aim is to obtain all modal parameters of the vibration system by operating the instrument simply if we have gotten hold of frequency response function in time of experiment.

现场实验时，可在获得系统频响的同时通过简单的仪器操作即可得到系统的各模态参数是本文的主要目的之一。

At the time of training, the subjects adapted modified plantigrade posture supporting the both upper limbs vertically on the vibration platform.

训练时，受试者采修正式跖行姿势，将两侧上肢垂直支撑於振动平台上。

In the system, a lot of vibration sensors are laid in the differentplaces of the cabin and the field bus monitoring network system is found, which thesystem can real-time monitor the total ship noise. Thus, on the one hand the systemcan predict the sound field characteristic of typical navigation state in order toenhance the navigational reliability, on the other hand for effectively protecting thehealth of the sailorman and passenger, the certain technology that can reduce oreliminate the ship noise are adopted.

系统通过在船舱内不同的位置布置大量振动传感器和建立现场总线监测网络系统，实现对船舶总噪声的实时监测，从而对船舶典型航态的声场特性作出准确的预报，以便提高船舶航行的安全可靠性，同时通过采用某些降低乃至消除噪声技术和措施，有效地保护船员及乘客的身心健康。

As an example using sine wave, the effect of vibration amplitude and frequency and time on bit error rate is researched.

以振动谱中典型的正弦谐波为例，推导了振幅、频率和时间对误码率的影响。

The wavelet packet analysis applied in fault diagnosis system is studied in this thesis. Using simulation fault data, uncalm and time difference vibration signal of sodium pump are decomposed on different levels and frequencies.

对小波包分析应用于故障诊断进行了研究，利用仿真出来的故障数据，将快堆钠泵非平稳时变振动信号分解到不同层次和不同频带上，有效地提取出反映钠泵不同故障的特征向量，在识别中得到了满意的结果。

The wavelet packet analysis applied in fault diagnosis system is studied in this thesis. Using simulation fault data, uncalm and time difference vibration signal of sodium pump are decomposed on different levels and frequencies. To picked-up the eigenvectors reflecting different fault of sodium pump with availability, simulation results have shown its satisfaction in the identification.

对小波包分析应用于故障诊断进行了研究，利用仿真出来的故障数据，将快堆钠泵非平稳时变振动信号分解到不同层次和不同频带上，有效地提取出反映钠泵不同故障的特征向量，在识别中得到了满意的结果。

Are taken to reduce vibration. Proper millisecond time of blasting and corresponding frequency are chosen to decrease the blasting effects on buildings near the area of coal strip mine.

通过现场试验和爆破地震效应的观测，选取了较为合理的爆破微差时间及相应的爆破地震频率，降低了矿区附近的爆破地震效应。

The framework and approaches of turbopump post test data analysis were presented. Using the traditional time domain features of vibration signals, the turbopump history test data were analyzed, and based on the results some conclusions were drawn.

2提出了涡轮泵事后数据分析的步骤和软件总体框架，利用振动分析中常用的时域统计特征参量，对涡轮泵历史试车数据进行了统计分析，并对分析结果进行了讨论。

In this paper,the time characteristic and circulative fluctuation of vibration signal measured on the diesel cylinder head are analysed emphatically and some measures have been proposed in order toobtain the steady characteristic p...

文中着重分析柴油机缸盖振动信号的时间特征和循环波动性，并提出消除波动性的一些措施，提高了故障诊断的准确性。

The calculated results are corresponded to the real results, and the time history curves of vibration response of the system were obtained when the train derails.

摘 要：结合自动控制理论，研究了桥上列车脱轨的力学机理，发现桥上列车脱轨是列车-桥梁时变系统横向振动丧失稳定的结果。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷