The acoustic radiation resistance matrix is combined with the velocity vector on a vibration surface to predict the total sound power radiated from the structure.
利用声辐射阻力矩阵和振动面上的速度矢量预报了结构声辐射的总功率。
The acoustic radiation resistance matrix is combined with the velocity vector on a vibration surface to predict the total sound power radiated from the structure.
基于声辐射模态分析，建立了外部场压和结构表面振动速度之间关系的传递矩阵。
This paper introduces the basic method for diagnosing interior faults of diesel engine by the use of surface vibration signals.
本文介绍了利用表面振动信号进行柴油机内部故障诊断的基本方法。
The real detecting result shows that it is feasible to use the engine surface vibration signal to diagnose main bearing shell abnormal wear trouble.
现场实测结果表明，利用柴油机表面振动信号来诊断柴油机主轴瓦异常磨损故障是可行的。
This paper presents a method of using self made vibration source and vibrometer to excitc surface waves (ripples) to produce interference.
介绍了用自制的振源、振子来激发表面波（涟波）产生干涉，从而测出液体的表面张力系数的方法。
Upon the surface of the earth we hold the vibration of honor which is a silver ray that harmonizes the love between individuals or within nature.
在地球表面，我们持有尊重的振动，这是一种协调了在人类之间的爱，或者大自然当中的爱的银色光线。
In diamond ultra-precision turning, there is unavoidably, a relative vibration between the tool and the workpiece, which influences the quality of workpiece surface.
在金刚石超精密车削加工中，刀具与工件之间不可避免地存在一定的振动，从而影响工件表面质量。
It is proved by experiments that under appropriate machining conditions, abrasive belt vibration grinding can not only reduce workpiece surface roughness but also improve work-piece form accuracy.
实验表明，在适当的加上条件下，砂带振动磨削不仅可以降低工件的表面粗糙度，而且可以提高工件的形状精度。
According to the actual operational condition of engine, calculate dynamics with different rotational speed and breakout pressure, and get the surface vibration speed stage of engine.
根据车用发动机的实际使用工况，在不同转速及爆发压力下对其进行动力学计算，得到发动机的表面振动速度级。
The action between rivulet and cable surface is one of the difficulties in establishing theoretical models of rain-wind induced vibration.
如何假定水线与拉索表面之间的作用力是建立风雨激振理论模型的难点之一。
The test result shows tha the influence of related displacement on surface finish is linear and related to amplitude and frequency of vibration and spindle speed.
试验结果表明：相对位移对表面光洁度的影响是线性”的，不仅与振动幅值有关而且与振动频率及主轴转速有关。
The results showed that, with appropriate wheel vibration frequency or appropriate workpiece rotate speed, the surface precision of workpiece can be improved.
结果表明：合理选择砂轮振动频率或工件主轴转速能有效提高工件表面精度，降低表面波纹度。
The vibration characteristics of external plunge grinding and the ground surface profile error are investigated through experiments analysis.
在实验的基础上，对磨削过程振动特征以及由此产生的磨削表面形貌误差进行研究。
The laser vibrometer based on the surface vibration for measuring and analyzing the radiating noise of the 4120SG diesel engine is proposed.
以4120SG柴油机为研究对象，提出基于激光测振的表面振动法测量柴油机辐射噪声。
In addition, this Paper describes the atomic vibration in different surface lattice waves.
本文还对各种表面格波中的原子振动方式作了一定的描述。
It has also been clear that the source of piston knock noise is the impact between piston and cylinder sleeve by the vibration acceleration of the engine's body surface.
又通过发动机机体表面振动加速度，确定活塞敲击噪声产生的根源在于活塞与缸套的碰撞冲击。
Cutting force simulation is not only an important part of physical simulation in milling process, but also the foundation of vibration prediction and surface topography estimate.
铣削力仿真不仅是铣削加工过程物理仿真的重要组成部分，同时也是颤振预报、表面形貌评估的基础。
Several methods to reduce block surface vibration response by changing the local stiffness of the block are discussed.
通过改变机体表面局部刚度，对减小机体表面振动响应的几种方法进行了探讨。
This article mainly concentrated on the parameters transformation of vibrating compaction, hitting of roll compacted concrete, and surface vibration on the basis of experimental research.
通过试验研究，本文论述了碾压混凝土的振动碾压，击实和表面振动的参数变换关系。
This paper analyzed the movement theory of lean rotate Vibration of helical surface and the motion law of materials movement.
分析螺旋面斜向扭转振动传动的原理和螺旋面上物料运动的规律。
And the other one is to clean the left and right vibration, a larger range for cleaning the surface of the teeth stains.
而另一个清洁模式则是左右震动，幅度较大，用于清洁牙齿表面污渍。
A novel polishing technique based on the two-dimension vibration of fluid is put forward to obtain ultra-smooth surface without damage.
本文阐述了一种基于流体二维振动的原子级无损伤超光滑表面加工技术。
Based on this, the steel ball surface quality is increased by the means of surface handling, then the vibration value is reduced, the fatigue life is raised.
针对钢球表面易产生擦伤，影响钢球精度等原因，采用表面强化处理的方式提高钢球表面质量，降低振动值，提高疲劳寿命。
The major methods of measuring Q-value by the natural earthquakes are the ones of using the data of free vibration of earth, body wave, surface wave and coda.
利用天然地震波测量Q值的主要方法有：利用地球自由振荡资料、利用体波、利用面波和利用尾波来研究Q值。
Through a series of drawing experiments of brass wires, the effects of ultrasonic vibration on drawing force and surface quality of the wires were discussed.
系统由超声波驱动器、换能器、变幅杆、拉丝模、拉伸机等组成，通过对黄铜丝的拉拔实验，考察了超声振动对拉拔力和丝的表面质量的影响。
The vibration signal is modeled and analyzed by using the technique of time series analysis, and the main factors of the surface waviness which cause the ball bearing vibration are detected.
该方法利用时间序列分析技术，对滚动轴承振动信号进行建模和谱分析，找出引起轴承振动的表面因素。
For the increase of finishing efficiency and surface quantity, the vibration mechanism was used in finishing machine so as to realize the motion of axial vibration.
为了提高研磨效率与表面质量，在研磨机床中采用振动机构来实现轴向振动运动。
This grinding has its merits, but its force fluctuates greatly and the trace of vibration appears on the surface of the camshaft.
这种磨削加工工艺有一定的优势，但同时会在被加工表面留下往复振荡的痕迹及出现磨削力的波动较大等现象和问题。
This grinding has its merits, but its force fluctuates greatly and the trace of vibration appears on the surface of the camshaft.
这种磨削加工工艺有一定的优势，但同时会在被加工表面留下往复振荡的痕迹及出现磨削力的波动较大等现象和问题。
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