查询词典 amplitude

The charts of velocity vector of flow field outside the tube under five conditions with amplitude 1.3 mm and frequency 5—25 Hz were obtained,and the cosine of average synergy angle of flow field outside the tube was calculated.

实验及模拟结果表明：振动能够显著增加管外近壁区的流体速度，能够在振动方向上的管壁两侧形成有效的冲刷，随着振动频率的升高其管外近壁区的平均速度近似呈线性增加，在共振点出现峰值；相同区域内振动工况的平均场协同角余弦值要明显大于无振动工况，但不同振动频率间的场协同角余弦值变化较小。

Using particle image velocimetercombined with CFD dynamic mesh,an experimental and simulation study was carried out on flow field in the near-wall region outside a vibrating tube.The charts of velocity vector of flow field outside the tube under five conditions with amplitude 1.3 mm and frequency 5—25 Hz were obtained,and the cosine of average synergy angle of flow field outside the tube was calculated.

采用粒子图像测速与CFD动网格相结合的方法，对振动圆管外近壁区流场进行了实验及模拟研究，得到了振幅1.3 mm、频率5～25 Hz范围内的管外流场速度矢量图，计算了不同工况下管外流场的平均场协同角余弦值。

The analysis considering temporary supports indicates that the real response of structure can be shown more veraciously . Besides , the amplitude of force for some particular component varies a lot , and it's indispensable to check the intensity and stiffness of structure in construction .

研究表明：考虑临时支撑对弦支穹顶结构的影响可以更贴切地体现结构施工过程中的实际响应，随着预应力张拉的进行，个别构件内力变化幅度非常大，对结构进行施工阶段的强度，刚度等验算显得尤为重要。

The analysis considering temporary supports indicates that the real response of structure can be shown more veraciously. Because of the temporary supports' effects, the components' internal forces and displacements of non-supports structure are different from the ones of structure considering supports. Besides, the amplitude of force for some particular component varies a lot, and it's indispensable to check the intensity and stiffness of structure in construction.

研究表明：考虑临时支撑对弦支穹顶结构的影响可以更贴切地体现结构施工过程中的实际响应，随着预应力张拉的进行，个别构件内力变化幅度非常大，对结构进行施工阶段的强度、刚度等验算显得尤为重要。

The vibration amplitude testing and analysis on vertical direction about even,parts of automobile s transmission system is achieved then .

第四，对车辆传动系的振动信号进行了检测分析与故障诊断。

The power generator is designed in the form of cantilever beam and excited at first resonance mode to generator maximum vibration amplitude.

首先利用有限元素法分析微发电机结构之第一共振模态，本论文还利用实验量测发电元件的模态并与有限元素分析结果比对。

The results show that electromagnetic vibration of hydropower generator rotors exhibits nonlinear characteristics, including the jumping phenomenon of amplitude-frequency curve and the obvious soft characteristics.

结果表明，动态偏心条件下水轮发电机转子的电磁振动呈现非线性特征，幅频曲线在一定条件下将出现跳跃现象，系统呈现明显的软特性。

Design of CCD video amplitude controller and target precise locating algorithm［J］.

CCD视频幅值调节器的设计及目标精确定位算法［J］。

The output of this circuit is a pulse whose amplitude is equal to VIN.

该电路的输出是一个幅值等于 VIN 的脉冲。

The study of spatial configuration and characteristics of pulsed-wire velocity probe shows that: the yaw-and pitch-response characteristics have a good behavior due to the asymmetrical arrangement of the prongs. Because the amplitude of sensor wire response signal changes with the flow velocity, the differentiated signal is selected to trigger a voltage comparator. The pulsing frequency is restricted to about 100Hz to allow the wire to cool between pulses. The first velocity probe with big acceptance cone has been developed in China, and the way of measuring the Reynolds normal and shear stress and application have been given in this dissertation.

对脉冲热线空间速度探针的空间结构及特性的分析表明：三根长支架平行且安置于同一平面的探针结构可以获得大的测量角和好的测量性能；由于传感丝的响应信号幅值随流速变化较大，故应采用微分法进行信号处理；对于5μm的传感丝由于散热时间基本不变，约为10ms，故脉冲发射的最高频率为100Hz；本文在国内首次研制成功了一种大测量窗的脉冲热线空间速度探针，并给出了测量雷诺应力的方法和实例。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。