实验上观测到光反馈引起激光脉动频率漂移和混沌运转等现象。
The phenomena of pulsing frequency shift and chaos in CO2 laser caused by light feedback are observed experimentally.
因为磁性生物体有自己的脉动频率,会让心脏将血液泵送到整个身体。
Magnetic biology has its own pulsation that causes the heart to pump blood through the body.
在实际操作过程中,选择合理的床层静止高度和气流脉动频率对提高传热系数有利。
In practice, choosing the static height of the bed layer and the frequency of the gas pulsation properly can increase the heat transfer coefficient.
对滚动轴承的失效形式作了分析,并对滚动轴承故障引起的轴承的脉动频率作了估算。
The invalidation form of rolling bearing has been analysed in this text, and the pulsation frequency which is caused of rolling bearing malfunction also has been estimated.
气流温度是影响干燥过程降水幅度的重要参数,床层静止高度及脉动频率对干燥过程的影响很小。
The air temperature is the most important parameter in the relationship of current humidity vs drying time. Static bed height as well as pulsation frequency has some influence on the drying process.
仿真结果表明,相邻值的奇偶数柱塞泵的流量脉动系数相差无几,且流量脉动频率与柱塞数的奇偶性无关。
The simulating result shows that there is little difference in the flow coefficient between the adjacent odd and even piston pumps, and the flow pulsation frequency is independent...
液压系统中阀门(换向阀等)突然关闭时,液压泵的流量脉动频率和管道的基本频率相互作用,可能发生谐振。
In hydraulic transmission system, the pump's flow pulse frequency and the pipes base frequency affects each other, if the valves shut suddenly, resonance oscillation may take place.
所进行的各种稳态和动态试验研究表明,该脉动流量信号发生器具有较高的脉动频率和明显的抗干扰能力等优点。
Some advantages of high pulsating frequency and good ability against interference of this flow signal generator are shown in the steady and dynamic experimental research on it.
7年的使用实践表明,直流脉动电压频率调制技术对抑制声谐振现象十分有效。
The7years 'applicable practices indicate that the frequency modulation technology with dc bus voltage ripples is very effective to suppress acoustic resonances.
研究表明,这种类型的脉动燃烧器的频率不仅与燃烧器的形状和尺寸有关,而且与燃烧器内热气体温度分布有关。
Study shows that the frequency of this kind pulsating combustor depends not only on the figure size of combustor but also on temperature distribution of hot gas in it.
利用脉动法对-试验工程进行了动力特性测试,得到了该结构的固有频率和振型。
The dynamic characteristics of an experimental structure were tested by means of pulsating method and frequencies and modes of structure are gained.
以空间矢量调制方法来获得逆变器的开关信号,实现了小的转矩脉动和恒定的开关频率。
The control signals of invertor are produced by space vector modulation to achieve a small torque ripple and constant switch frequency.
介绍了水轮机压力脉动试验时空化系数、测量位置及测点、信号采样频率及采样时间等因素对试验结果的影响。
In this paper, it is introduced to the influence of cavitation factor, measurement taps, sampling frequency and sampling time on the test result in pressure fluctuation test of the water turbine.
回忆起身份如同频率是你们身体的,精神的,情感和以电磁脉动传播的灵性身体总和。
Remember that identity as a frequency is the sum total of your physical, mental, emotional, and spiritual bodies broadcast as electromagnetic pulsations.
为了获得模型的柔度特性、频率、阻尼等进行了脉动试验、自由振动、锤击试验等。
The model was subjected to pulsation, vibration, free vibration and hammering tests in order to investigate its flexibility, frequency and damping characteristics.
结果表明提出的控制器可以保持开关频率恒定,并降低了转矩脉动,尤其在低速时。
The results indicate that the proposed controller is capable of maintaining the torque switching frequency constant and reducing the torque ripple, particularly at low speed.
提出消除振动的主要对策,包括避免固有频率接近引起的谐振、减少压力脉动及接蓄能器吸收振动等。
The vibration dispose countermeasures which includes preventing resonance caused by same inhere frequency, lessening pressure puke and using accumulator to absorb vibration etc.
发现共混物的相容性与正弦脉动流场的频率、振幅呈现一定的响应规律。
It was found that the blending system's compatibility responded to the sine pulsating flow field's frequency and vibration amplitude with certain regulation.
各种直流,脉动,高频较大电流场合,广泛应用于要求高频率,高电流,高稳定性的电器。
Used in all kinds of direct current, impulse, high frequency and heavy current occasions, widely used in electric appliance that require high frequency, heavy current and high stability.
结果表明:该闸门理论分析方法基本是正确的;其自振频率不会与水流脉动压力发生共振。
The result indicates that the theoretical analysis is correct, and no resonance will appear between the fluctuating pressure of water flow and the gate vibration frequency.
研究脉动流条件下涡街信号的模型,提出频率测量的新方法。
A model of vortex signal in the state of pulsing flow is studied, and a new frequency measuring technique is proposed.
通过水中爆炸水击波及其多次脉动的观测,分析了水击波及其多次脉动的传播速度、脉动周期、频率及能量分布等特性。
Through observation on shock wave and multiple pulsating caused by underwater blasting, the velocity, period, frequency and energy of shock wave and multiple pulsating are analysed.
全液压调速系统的油压容易产生脉动,如果油压脉动的频率与电力系统固有频率接近时也可能引发电力系统共振机理的低频振荡。
If the frequency of oil-pressure pulsation is near to power system natural oscillations frequency, power system low frequency oscillations of resonance mechanism can be induced.
频谱分析确定了破裂点脉动和螺旋波的频率特征。
Spectrum analysis reveals the frequency characteristics of vortex breakdown point oscillation and spiral wave.
并提出在进行压力脉动试验时,应增加测点、延长采样时间、提高采样频率以避免信号遗漏和信号混叠等现象的发生。
Author suggests that increasing number of measurement taps and prolonging sampling time and enhancing sampling frequency will decrease signals aliasing and leakiness.
应用脉动法测到的信号分析结构的固有频率和振型,利用作者提出的改进的单纯形法来识别结构刚度。
The frequencies and vibration modes of structures are analyzed with pulsating method and structural stiffness is identified with modified simplex method, which is presented by authors.
传统的直接转矩控制存在着转矩脉动大,低速性能差、开关频率不固定等问题。
The traditional direct torque control system has existed large torque fluctuation, poor performance of low speed region, inconstant switch frequency, etc.
利用有限元法求解声学波动方程,建立了管内气流的有限元运动方程,计算出管内气柱的固有频率和气流压力脉动。
The FEM equation of acoustic wave is used to calculate the air-current natural frequency and pressure pulsation in the pipeline.
利用有限元法求解声学波动方程,建立了管内气流的有限元运动方程,计算出管内气柱的固有频率和气流压力脉动。
The FEM equation of acoustic wave is used to calculate the air-current natural frequency and pressure pulsation in the pipeline.
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