Pressure Oscillation often occurs in two-phase system even if it operates in steady state.
即使在稳态运行时,两相流体回路系统也经常会发生压力振荡现象。
The influence of some factors on pressure oscillation is studied by frequency spectrum analysis.
采用频谱分析方法,分析诸因素对压力振动特性的影响。
This phenomenon of pressure oscillation can be attributed to the wall slip behaviour of the sample.
壁滑移发生在口型出口附近。这种压力波动现象主要归因于试样的壁滑移行为。
The results show that the high-frequency pressure oscillation is aroused by the combustion chamber's resonance.
有限元计算结果与模态试验结果较吻合,声模态修正后的结果能很好地解释缸内燃烧压力高频振荡。
A compressor together with rotary valve system generates pressure oscillation in a GM-type pulse tube refrigerator.
GM型低温制冷机的压力波发生系统通常包括压缩机和平面旋转阀。
The pressure oscillation can be suppressed by either raising extrusion temperature or adopting blending modification.
升高挤出温度和采用共混改性都可抑制压力振荡现象。
The research results show that the engine combustion noise can be reduced by reducing the combustion pressure oscillation inc…
研究结果表明,通过减小缸内压力振荡可降低直喷式柴油机的燃烧噪声。
The effect of blending was investigated by analyzing the viscoelasticity, pressure oscillation, flow curves and extrudate appearance.
采用双毛细管流变仪详细研究了聚乙烯及其共聚物的挤出畸变、管壁滑移及挤出压力振荡现象。
This paper presents a pressure oscillation detection technique for automatic measurement of blood pressure by the oscillometric method.
本文介绍一种用于测振式自动血压测量的脉搏波检测方法。
The research results show that the engine combustion noise can be reduced by reducing the combustion pressure oscillation in combustion chamber.
研究结果表明,通过减小缸内压力振荡可降低直喷式柴油机的燃烧噪声。
As the shear rate rises, the amplitude of pressure oscillation reduces, whereas the slide velocity, critical slide length and the frequency increase.
随剪切速率的增加,压力振荡的振幅减小,而滑移速率、临界外推滑移长度及振荡频率均有提高。
Heat release's response to the pressure oscillation is different from the vaporization rate. Moreover, its response to pressure oscillations is obvious.
煤油蒸汽的消耗速率对压力振荡的响应不同于蒸发速率的响应,热量释放对压力振荡也具有明显的响应。
The result shows that the "puffs" in the furnace are caused by the pressure oscillation, which indicates that there is combustion oscillation in the furnace.
研究表明,燃烧“喘息”现象是由燃烧压力周期波动引起的,说明炉膛内存在燃烧振荡。
The paper reports the results of an investigation of the characteristic of combustion pressure oscillation in a D. I. diesel engine and their effect on engine noise.
本文报告了对直喷式柴油机燃烧压力振荡特性及压力振荡对燃烧噪声影响规律的研究。
The pressure oscillation in piping system can lower the efficiency of the pump, cause the additional consume of energy and emit noise, deteriorate the working condition of the accessory.
管道系统中的压力脉动会对管道系统中造成许多危害,例如它会降低泵的工作效率、增加额外的能耗、产生噪声,使管道附件的工况变坏和造成管道振动等等。
Gear pump structure simple compact, the manufacture is easy, to maintain conveniently, has the self-absorption ability, but current capacity, pressure oscillation the noise and is greatly big.
齿轮泵结构简单紧凑,制造容易,维护方便,有自吸能力,但流量、压力脉动较大且噪声大。
During a part of each oscillation, a region whose pressure is above the equilibrium pressure is formed.
在某一振动的某一阶段,形成了压力大于平衡压力的区域。
One of the more severe fluctuating pressure environments encountered in supersonic or hypersonic flows is the shock wave oscillation driven by interaction of a shock wave with boundary layer.
在超声速或高超声速绕流中,一种很严重的脉动压力环境是由激波边界层相互作用引起的激波振荡。
To explain the generative mechanism of low pressure and mass flow self-excited oscillation pulsed jet, the nozzle optimized design range of structure and operation parameters was investigated.
为了揭示低压大流量下自激振荡脉冲射流清洗的脉冲发生机理,研究了这种工况下喷嘴结构和运行参数的优化设计范围。
The relaxation oscillation characteristics of a resonant tunneling diode (RTD) with applied pressure are reported.
报道了共振隧穿二极管(RTD)在压力下的弛豫振荡特性。
Pressure characteristic function curve with significant characters is one kind of curve with oscillation shape and its value between positive and negative.
压力导数的子波变换曲线具有明显的形态特征,它是一种正负相间、具有振荡形式的曲线。
Energy and optimal pressure of amplified spontaneous emission and laser oscillation are compared.
本文还对自发辐射放大和激光振荡的能量和最佳气压进行了比较。
The jet is controlled by a circular vortex chamber, and self exited oscillation occurs due to a pressure difference between the left and right parts of vortex chamber.
该装置利用环形涡腔对射流进行控制,利用涡腔的左、右腔的压力差产生自激振荡。
When the exhaust valve is closed, the gas with the bubble oscillation reduces, causing the bubble impulse lower the pressure impulse obviously.
排气阀门的关闭直接造成参与气泡振荡的气体质量的减少,第二气泡脉冲相对主脉冲明显减小。
The size dimension of the ion imprinting polymer porous small ball can be controlled by controlling the extrusion pressure and oscillation frequency.
该离子印迹聚合物多孔小球可以通过控挤出压力和振荡频率来控制尺寸大小。
Based on the homogeneous model, the numerical computation for the oscillation period and amplitude of pressure drop type instability was conducted.
根据两相流的均相模型,对压力降型脉动的周期和振幅进行了数值计算。
The dynamic vibration of hydraulic system is characteristic of instantaneous velocity, pressure and its oscillation.
液压系统动力学振动程度可用瞬时速度、压力和压力脉动描述其特性。
Under the experimental conditions of the study, pressure - drop type oscillation and thermal oscillation have been observed.
在该项研究的实验条件下,已经观察到压力降落型脉动和热力脉动。
Various vibration molding techniques, including oscillation packing injection molding, shear vibration injection molding, and pressure vibration injection molding were introduced.
对本课题组多年来进行的动态保压注射成型、剪切振动注射成型和压力振动注射成型研究进行了简要总结。
Various vibration molding techniques, including oscillation packing injection molding, shear vibration injection molding, and pressure vibration injection molding were introduced.
对本课题组多年来进行的动态保压注射成型、剪切振动注射成型和压力振动注射成型研究进行了简要总结。
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