The microcomputer system exactly and rapidly shows the ratio of fluctuation of speed.
准确迅速地反应了发动机转速波动规律。
In order to have a reliable operation, must reduce the speed fluctuation, namely must effectively restrain the load torque ripple and motor electromagnetic torque ripple of speed fluctuation bring.
为了可靠运行，必须降低转速的波动，即必须有效抑制负载转矩脉动和电机电磁转矩脉动带来的转速波动。
The performance of high speed rolling bearing was studied under unstable conditions of rotation speed fluctuation, and the failure modes of the bearing were analyzed under such conditions.
分析了高速滚动轴承在转速波动这一非平稳状态下的运行状态，研究了转速波动对轴承运转性能和失效模式的影响。
A-operator method (AOM) is used to study the influence of the torque fluctuation and time-varying meshing stiffness on rattling threshold speed of the gear system.
用算符分解算法(AOM)研究了扭矩波动和时变啮合刚度对拍击门槛转速的影响。
The test results showed that the influence of drawing ratio, speed and temperature on the tension, tension fluctuation and irregularity of the fiber were obvious.
结果表明，拉伸比、拉伸速度和拉伸温度对纤维张力、张力波动和不匀率均存在着明显的影响。
The tension fluctuation and irregularity of fiber decreases with the increase of drawing ratio, speed and temperature.
增大拉伸比、拉伸速度和拉伸温度能有效地减小张力波动和不匀率。
Based on the method of engine crank speed fluctuation, the 58X speed sensor signal is analyzed by the input capture.
基于曲轴转速波动法，通过对发动机58齿转速信号进行分析，计算发动机每缸失火粗暴度来判断是否失火。
By means of negative feedback, the motor's speed fluctuation of the device, caused mainly by voltage fluctuation of power supply, can be controlled.
采用电压负反馈法，控制主要由供电电网产生电源电压波动而引起的储纬器电机转速波动。
The experimental results of upwards and downwards switching processes showed that the fluctuation range of engine speed increased as the load increased in the valve switching process.
大小涡轮相继增压系统上、下行切换试验结果表明，阀门切换过程中发动机转速波动范围随着负荷的升高而增大。
The so-called velocity of light invariable is the light fluctuation speed is invariable.
所谓光速不变是光的波动速度不变。
The minimum and maximum of amplitude fluctuation correspond with the minimum of precession speed after the critical point on the response curve.
振幅、相位、进动角速度在过临界后的波动频率随转速增加而增加。
The single cylinder misfire can be also done by the frequency spectrum analysis of rotating speed fluctuation at both low and high speeds, but it can not be determined which cylinder is misfired.
利用瞬态曲轴转速波动进行时域分析可在低速时诊断出单缸熄火，在高速时由于波动的复杂性就难以做到。
When standard turntable runs, its Angle speed fluctuation is critical for the reliability of calibrated device.
标准转台等旋转体在转动时产生的角速度波动对被标定设备的数据可信度有很大影响。
The wind speed model considering wake effect can describe power output of wind farm more accurately under wind speed fluctuation, therefore the study result is more practical.
考虑风电场内机组间尾流效应的风速模型能较准确地描述风速扰动下风电场输出功率的波动，使研究结果更具有实际意义和价值。
It found that adoption of energy storage flywheel structure could improve the current operation situation and make the periodic speed fluctuation tend to be balanceable and homogeneous.
采用储能式飞轮结构能改善目前的运行状况，使周期性速度波动趋于平衡均匀；
The model of radar target is composed of distance, bearing, speed, heading and amplitude of echo, fluctuation.
目标模型包括船舶的距离、方位、速度和回波幅度、幅度起伏。
The theoretical analysis and experimental results demonstrate that the motor current has some fluctuation in vari-speed cutting process, but it is almost no effect on normal operation of machine tool.
理论分析和试验结果表明，采用变速切削加工时，电机瞬时电流确有一定程度的波动，但不影响机床电机的正常使用；
So, this new type of cycloidal pump is capable of operating with higher rotation speed and more teeth, higher specific flow rate, less flow fluctuation and wear.
因此，新型转子泵可以采用较普通转子泵更高的工作转速、更多的齿数，并获得更大的流量、更小的波动和更小的磨损。
This paper addresses that speed fluctuation amount of drawing area, drawing speed, draw depth, draw Angle shall be used as the indexes to evaluate the performance of the inner sliding block mechanism.
提出用拉深区速度波动量、拉深速度、拉深深度、拉深角为评价压力机八杆内滑块机构性能优劣的指标。
The traditional direct torque control system has existed large torque fluctuation, poor performance of low speed region, inconstant switch frequency, etc.
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。
However, as the news was released about the construction of international tourist island of Hainan, there had been wide fluctuation on the local tourist price with a surprising rising speed.
但自从海南国际旅游岛建设的消息传出后，当地旅游资源的接待价格出现了宽幅波动，上涨幅度相当惊人。
Test results show that fluctuation of torque output and engine speed, HC emission and its rise ratio are all affected by excess air ratio.
研究结果表明：扭矩波动、转速波动、HC排放值和HC升高率都受空燃比的影响，并且它们的变化趋势具有较好的一致性；
The significant factors which exert an influence on instantaneous fluctuation of motor current are in sequence :Vari-speed wave form, vari-speed amplitude and vari-speed frequency.
在变速参数中影响电机瞬时电流波动最为显著的因素依次为变速波形、变速幅度和变速频率。
Moreover, the influence of the geometric parameters on efficiency and speed fluctuation of the roller drives is discussed.
并且论文也讨论了滚筒的几何参数对效率和速度变化的影响。
While the load pressure fluctuation, the load torque fluctuation and the rotational speed fluctuation mainly affect the steady performance of the system.
负载压力波动、加载转矩和转速的波动，主要影响系统的稳态性能。
The simulation model and result are given under the environment of MATLAB. The fluctuation of wind speed can be controlled and the disturbance can be cancelled by BP neural network controller.
在MATLAB环境下给出了用BP网对变速风力发电机控制的仿真模型和仿真结果，显示采用神经网控制器控制有很好的抗风速突然波动的作用，能有效地抑制扰动。
The results show that the fluctuation of compressor's rotating speed is small using this control method, and it has robustness.
计算结果表明，这种控制方法简单可行，压缩机转速波动较小，且有着较好的稳定性和抗干扰能力。
If the screw speed of parallel pressure stabilization apparatus is varied corresponding to the pressure fluctuation, the pressure and output fluctuation of extrusion can be fully compensated.
若调节稳压螺杆的转速，则可完全补偿主螺杆压力和产率的波动。
The intermittent and random fluctuation of wind speed result that wind power grid-connected power fluctuates largely, which has a negative influence to stability and economy of power grid operation.
由于风速具有随机波动性，因此风力发电并网功率波动很大，这对电网运行的稳定性及经济性带来负面影响。
According to the property of cutting with fluctuation speed in vibration drilling, a new concept of vibration reduction by cutting with fluctuation speed in vibration drilling is presented.
根据振动钻削所具有的变速切削特性，提出了振动钻削的变速减振新概念。
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