本文以脉动半球声源为基本物理模型,推导了由振动量计算振动点的界面噪声的理论公式。
This paper develops a theoretical formula for calculating interfacial noise of vibrating point from its vibratory quantity with pulse semisphere sound source as basic physical model.
经长期运行后,振动点幅值无增大现象,根本解决了该机组管网振动严重、故障频繁、不能平稳运行等问题。
Vibration amplitude value is not increasing for a long period running, problems are solved thoroughly for severe vibration, frequent accident and unsteady run of the compressors pipe network.
此设备使用尖锐点振动悬臂,它会扫描样品表面、拓扑结构和样品的属性,以提供非常详细的图像。
This device USES a sharp point mounted on a vibrating cantilever, which scans the surface of a sample and reacts to topology and the properties of the sample to provide highly detailed images.
他们以一种非常精密的程度发现,当气体稍微被加热一点儿时(只有几百万分之一开尔文),振动会减慢,这说明黏性增大了。
Critically, they found that when the gas was heated a tiny fraction (only by millionths of a degree Kelvin), the oscillation slowed, signifying an increase in viscosity.
它也将继续的不断扩张到更高的能量点去赢得及接下来的几个月,每个人都把意识的振动带进一个新的高度。
It will continue to grow as a series of energy high points are being reached in the next few months, each one bringing the vibrations up to a new level.
测试系统采用PC计算机、电涡传感器,声卡,建立了乳化液泵振动信号的信号采集系统并对测点的安放进行了说明。
With PC, eddy current sensor and sound card, a vibration signal collecting system was designed. Laying position of the sensor was explained.
新陈代谢是对你每一个时间点的振动的反应。
提升是生物体上的技艺,它使形体在振动上每次一点地上升然后逐步进入另一个密度。
Ascension is a biological feat in which the form rises in vibration a little at a time to gradually enter another dimension.
最后以300MW机组为例,说明其振动测点的一般布置。
Finally, demonstrate the general layout of vibration signals for 300MW unit.
另外一种被称为“幻影触觉”的错觉,是通过同时放置正在振动的物体在皮肤的不同位置点上,从而在这两点之间产生一股触觉。
Another illusion known as' phantom tactile sensation 'is done by placing vibrating objects at different points on the skin at the same time which creates a tactile sensation between the points.
由于地壳在这些点很脆弱,下沉,河底较低,而薄薄的薄膜比厚重的岩层更容易振动。
River bottoms are low land because the crust is weak at those points, sinking, and thus as a thin membrane is more prone to vibrate than a thick crust.
应用机械振动理论,对准匀速悬点运动下抽油泵的动力特性进行了分析。
The dynamical properties of oilwell pump under quasi-steady landing top movement is analyzed using mechanical vibration theory.
笔者为此从随机振动理论出发,对点支式幕墙支撑结构的风振系数进行了研究。
Based on random vibration theory, the response of the structure under random wind load and the formula of wind vibration factor was developed.
对水下由环形肋板连接的有限长双层柱壳在点激励下的稳态振动特性进行了研究。
The characteristics of vibration in a submerged double shell connected by annular plate drived by a point force in inner shell is studied.
第1章回顾了扬声器和旋转薄壳在转点频段的线性和非线性振动,发现旋转薄壳转点问题中尚有若干问题有待进一步研究。
An overview of the research conducted in the area of linear and nonlinear vibrations in the turning-point frequency range of loudspeakers and revolution shells is given in chapter 1.
旋转薄壳的自由振动在特定频段存在转点现象。
There exists transition point in the free vibration of revolution shells at some special frequencies.
这是当你的振动提高到某一点,让过去那些无法与你连接的你自身的其他版本与你会面。
It is when you vibration elevates to a certain point that these other versions of you can connect with you, meet you.
较低的振动无法阻止你们,并且在达到某一点的时候,你们无论如何都会扬升。
The lower vibrations cannot keep you back, and at a certain point you would in any event ascend.
换句话说,如果别人不去做点什么改变他们的振动,他们就会处于茁壮成长的振动之中。
In other words, if others don't do something to change their vibration, they are in a vibration of thriving.
研究结果表明:小麦联合收获机任一点的振动强度、频率结构随工况不同而变化。
The results showed that vibration strength and frequency structure of any spot of the combine are different with the different working conditions.
解离能计算进行了零点振动能(ZPVE)校正,并运用完全均衡校正法对基函数重叠误差(BSSE)进行校正。
For dissociation energy, zero point vibration energy (ZPVE) is calculated and basis set superposition error (BSSE) is corrected by counterpoise method.
利用铁谱分析技术和振动分析技术中的时频分析方法研究了模拟点蚀故障齿轮磨损与振动的关系。
The relation of wear and vibration of gear of simulating pitting fault was studied by using ferrographic analysis and the time and frequency spectrums of vibration analysis technology.
本文利用相图讨论了一个反射光点的振动问题。
The vibration of reflected light spot is discussed based on phase diagrams in this paper.
众所周知,工程爆破常在附近引起地震灾害,某一点地震灾害的大小取决于该点地层的地震振动速度。
As is known to all, engineering explosion always causes earthquake calamity. How serous the calamity is depends on vibration velocity of exploding earthquake in stratum.
重点研究了过渡态的虚振动模式,它指向反应物和产物,说明这些驻点均位于正确的反应途径上。
The imaginary vibration model of transition state is studied chiefly, and points to reactant and product, and illuminates that stationary points locate the right reaction channel.
导纳是衡量结构动态特性的重要指标,任何结构的振动响应特性本质上都可以用结构表面各点的导纳来表示。
Mobility is an important concept for vibration isolation and vibration response characteristics of a structure can be represented essentially by its point mobility on its surface.
导纳是衡量结构动态特性的重要指标,任何结构的振动响应特性本质上都可以用结构表面各点的导纳来表示。
Mobility is an important concept for vibration isolation and vibration response characteristics of a structure can be represented essentially by its point mobility on its surface.
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