pressure amplitude
英 [ˈpreʃə(r) ˈæmplɪtjuːd]
美 [ˈpreʃər ˈæmplɪtuːd]
网络 压幅; 压力扰动
双语例句
- The experiment result showed that sinusoidal tube can effectively inhibit second order harmonic mode, increase first order pressure amplitude and lower down heating block temperature.
在一定加热功率下，正弦管能有效抑制系统产生的二阶谐波，提高一阶压力波动幅值并降低加热块温度。 - The relationships among oscillation frequency, pressure wave amplitude ( ratio) and the size ( length and diameter) of the acoustic amplifier are obtained.
得出了系统频率、压比等参数随声学放大器尺寸的变化关系。 - The phenomenon of pressure fluctuation amplitude varying with the operating condition is analysed with two pressure gradient equations.
文中还根据两个压力梯度方程初步分析了压力脉动振幅随工况而变的现象。 - The results of the boiler start-up simulation showed that the time of start-up would decrease with the increase of flue consumption, but instantaneous pressure amplitude would increase.
锅炉启动模拟仿真结果中发现，锅炉启动时燃料量增加，锅炉的启动时间就会减少，但是瞬时升压速度会增加； - The dependence of frequency relations on pressure and modulation amplitude is similar with other laboratories.
频率依赖于碘压和调制幅度的关系与其他研究所的结果相类似。 - The dependence of viscosity on melt temperature was lowered by increasing vibration pressure amplitude which makes the processing temperature lower.
增大振动压力幅度能降低表观粘度对温度的依赖性，从而降低聚合物的加工温度。 - The following work has been done: ( 1) Analyzing the influence of acoustic frequency, acoustic pressure amplitude and initial bubble radius towards bubble dynamics respectively;
主要工作和结论为：（1）分析声场频率、声压和气泡初始半径对气泡动力学过程的影响。 - The affecting degree of vibration frequency or vibration pressure amplitude on the mechanical properties at different temperature was dissimilar, but the affecting trend was consistent.
不同温度下振动频率或振动压力幅度对注塑件力学性能的影响程度不同，但其影响趋势是一致的。 - The effects of manothermosonication ( MTS) on enzymes in food processing and the effects of temperature, pressure, amplitude, and medium on MTS are introduced and discussed.
介绍了食品加工中压热声处理（MTS）对酶失活的影响，阐述了温度、压力、振幅和介质等因素对MTS失活酶的影响。 - The simulation result shows that the dynamic pressure amplitude was amplified obviously when the temperature gradient was above the critical value.
模拟结果表明，在高于功产生的临界温度梯度时，波动压力振幅被显著放大。 - The design and Development of a linear hydrophone array, using for measuring the complex sound pressure ( amplitude and phase difference) distribution near by a large sonar transmitting array for NAH ( Near field Acoustic Holograph) technique, are undertaken.
对用于近场声全息（NAH）技术、测量大型声呐发射阵近场全息声压分布的线型水听器基阵，进行设计、研制。 - As the vibration pressure amplitude increases, the impact strength and the tensile strength of the samples increase simultaneous. The structure of the samples were investigated by SEM, WAXD.
研究了振动参数对注塑试样的拉伸强度，冲击强度的影响，并对试样进行SEM，WAXD测试。 - Field tests and analysis indicate that there are less variation of velocity and greater variation of pressure in an airway, and pressure amplitude keeps approximately invariable in a propagation process when pulse airflow is induced by disturbances.
通过现场实测与分析，得出有扰动源引起井巷风流脉动时，流速变化不大而压力振幅较大且压力振幅在传播过程中基本不变的结论。 - The experiment focuses on the temperature of the gas in the hot end heat exchanger, the temperature decline of the cold end of the pulse tube and pressure amplitude.
进行三个脉冲管与行波型热声发动机的配合实验，着重研究了热端气体温度、冷端温降和压力振幅的变化规律。 - A prototype of acoustical transformer was designed and tested, which can increase the oscillating pressure amplitude by about 3 times. The experiment successfully verified that the proposed "acoustical transformer" has the ability to increase the pressure amplitude greatly.
对此方案设计了原理性的实验，表明声波在经过此变压器之后压力幅值能够提高3倍左右，充分证明此变压器具有大幅度提高压力幅值的能力。 - The analytical solutions of stresses, displacement and pore pressure amplitude are derived in frequency domain by introducing two scalar potential functions.
引入两个势函数，在频域中得到了应力、位移和超孔隙水压力响应解答。 - The probability distribution curve of the fluctuating pressure amplitude on the side wall of narrow-gap energy dissipater coincides with the normal probability curve.
窄缝消能工边墙的脉动压力振幅概率分布符合正态概率曲线。 - Then, using the spectral truncation method and the Tikhonov regularization method to calculate the thermoacoustic pressure amplitude of the source was simulated.
然后，利用谱截断正则化和Tikhonov两种正则化方法对点焊热声源声压幅值进行了模拟计算。 - Numerical simulation shows an accurate prediction in the variation of the frequency and the pressure amplitude as a function of the mean flow velocity.
数值模拟准确预测了振荡频率以及压力振幅随时均流速的发展规律。 - During the experiments, we found the acoustical pressure amplifier tube fail to amplify the pressure amplitude as the acoustical impedance connecting to the acoustical amplifier tube is not appropriate.
实验中，发现当声压放大器末端的阻抗不匹配时，将出现压力波动幅值缩小而不是放大的现象。 - Pressure amplitude in the controlling tube and the oscillating tube increases with the increasing expansion ratio. Therefore the isentropic refrigeration efficiency of gas wave refrigerator increases gradually.
控制管和振荡管内的波幅随着膨胀比的增加均增大，因此气波机的等熵制冷效率逐渐增大。 - Onset temperature is the key factor to influence the pressure amplitude of thermoacoustic forced oscillation.
起振温度是影响热声压力振幅的重要因素，强制振荡的起振温度越低，振荡稳定后系统的压力振幅也越低。 - Traveling-wave thermoacoustic electric generator is simulated based on the linear thermoacoustic theory. The effects of load resistance, circuit resonance and pressure amplitude on the output characteristics of the system are analysed.
基于线性热声理论，对行波热声发电系统进行整机建模，分析了外接负载、电路谐振和四通处压力振幅对行波热声发电系统输出特性的影响，并搭建实验台进行了验证。 - The results show that the influence of the charging pressure and heating power on the double-threshold onset process is significant. The double-threshold damping process is dependent on the charging pressure and pressure amplitude at the time of damping.
实验结果表明，充气压力以及加热功率对于双阈起振现象有着明显的影响，而双阈消振现象则主要由充气压力和消振时刻系统压力振幅决定。 - Buffer structure can effectively decrease the surface pressure of train and air resistance changes, but little impact on pressure amplitude value of the main factors affecting the safety of side window for the side window of extreme pressure and pressure gradient.
缓冲结构能大幅度的降低列车的表面压力与空气阻力变化，但对会车压力波幅值的影响很小。影响侧窗安全的主要因素为侧窗所受到的压力极值与压力变化率。 - Based on the analysis of a large numerical examples, pressure spike amplitude equation and hertz center pressure formula of heavy loaded point contact elastohydrodynamic lubrication are fitted out by the least squares data fitting method.
在分析大量数值算例的基础上，利用最小二乘法拟合出了重载点接触弹流的二次压力峰公式和赫兹中心压力公式。 - The results shows, the pressure amplitude is magnified in the resonant cavity model and, emerged at the two closed-end of the resonator. It is consistency with theory. 3.
研究结果表明，增加谐振腔有助于增大系统压力增幅，半波长谐振腔的压力幅值出现在谐振管的两封闭端，与理论分析吻合较好。 - Results show that a higher middle temperature in the stack leads to a lower onset temperature and a higher saturated pressure amplitude, which is of significance for lowering the onset temperature and improving the performance of the thermoacoustic engine. 4.
结果表明板叠中部温度较高的情况下，其起振温差较低且饱和压力振幅较高，对于降低热声发动机的起振温度和提高热声发动机效率具有一定的指导意义。