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变速
    Finite Element Calculation of Two-Dimensional Unsteady Flows Caused by a Ship Moving with Varying Speed in a Retricted Shallow Waterway
    二维浅水狭航道船舶变速航行的有限元计算
    PSEUDO SYNCHRONOUS SIGNAL RESAMPLING OF VARYING SPEED MACHINERY VIBRATION —Ⅱ. FILTER DESIGN AND SIGNAL RESAMPLING
    变速机械振动信号的伪同步重采样技术——Ⅱ滤波器设计与信号重采样
    Amplitude Correction Approach Using Average of Several Points in Discrete Spectrum for Analyzing the Dynamic Signal of Rotating Machinery with Varying Speed
    变速机械弱时变信号幅值谱校正的多点平均法
    Finite Element Calculation of Unsteady Flows Caused by Ship Moving with Varying Speed in a Half Infinite Retricted Shallow Waterway
    半无限长浅窄航道中船舶变速航行的有限元计算
    Auto varying speed and over-current protection system for motor
    电动机自动变速和过电流保护系统
    Research on Motor Current During Varying Speed Milling
    变速铣削中电机电流的研究
    The machine structure was properly redistributed, primarily composed of electric motor, varying speed institution, working parts, driving system, operation system etc.
    整机主要由电动机、传动变速机构、工作部件、行走机构、操作机构等组成。
    When well control point are rare or distributed unevenly,the seismic stacking derived average velocity should be constraint corrected with spill point average velocity and well point average velocity,then a reasonable varying speed velocity field could be obtained. Structural maps made in this way will have more accurate trap configuration and closure,and could provide more reliable basis for reserve calculation and development well allocation.
    在钻井平均速度控制点少或分布不匀的情况下,由溢出点平均速度和井点平均速度对地震叠加速度推导出的平均速度约束校正可得到一个较合理的变速速度场,由此所做的构造图将比无溢出点约束作出的构造图具有更精确的圈闭形态和闭合高度,为储量计算和开发井布置提供更可靠的依据。
    Part I and part II of this paper present a new data acquisition technique-Pseudo-syn-chronous Signal Resampling, which pre-processes varying speed signal so that conventional signal processing methods can be applied.
    为解决机械变速过程状态信号的解调和特征提取问题,本文提出了一种新的数据获取和预处理方法——伪同步信号重采样技术。
    The experiment investigates the effects of wheel speed varying range, speed varying frequency and the varying wave shape on results of vibration control. The normal and single factor experiments show that the vibration contolling result is good with varying speed grinding.
    试验考查了砂轮变速幅度、变速频率及变速波形对抑振效果的影响,正交试验和单因素试验结果表明,变速磨削抑振效果显著。
    The influence of varying speed grinding on the chatter increasing rate has been studied experimentally.
    进行了变速磨削对颤振增长率影响的试验研究。
    A complete calculation model for a marine high pressure steam turbine rotor is built in this paper. The transient temperature and stress fields of the rotor in the startup shutdown process and the varying speed and varying direction processes are obtained by adopting automatic increment nonlinear generalized finite element program ADINA/ADINAT. The stress time curves are presented.
    建立了某型汽轮机高压转子的完整计算模型 ,采用自动增量非线性通用有限元程序 ADINA/ADINAT,计算在启停和变速变向过程中转子的瞬态温度场和应力场 ,给出了应力 -时间曲线。
    The development trends of pumps were discussed from the aspects such as efficiency,new materials,seal, pumps of varying speed and computer applications.
    从泵的效率提高、泵的新材料、泵的密封、变速泵、计算机在泵上的应用等几个方面分析了国外工业泵的发展趋势。
    A intelligent control system is developed based on UGN-3075 and CSD1EH. It provides the auto pole change speed control and the over-current protection for three-phases varying speed motor. The inner structure,the feature and working theory of Hall integrated switch component UGN-3075 and Hall integrated circuit switch CSD1EH are introduced.
    为实现三相异步电动机自动变速并对其过流进行保护,研制了一种基于UGN 3075和CSD1EH的三相变速电动机自动变极调速及过流保护的智能控制系统,介绍了UGN 3075开关型霍尔集成元件和CSD1EH霍尔集成电流开关的内部结构、特点和工作原理,给出了系统的结构和测试结果。
    The measuring data of generator rotor obtained from varying speed experiment of the hydro-generating unit is analyzed.
    通过水轮发电机组的变速试验对发电机转子测试数据进行分析。
    This paper introduces how NGK Tangshan Electroceramics Company Limited to realize the control of the varying speed regulation of the electric engine in the electrical tests by using the frequency- transformer,and probes into the advantages of the speed- control by frequency- transformer comparing with the speed- control by electric engine under the traditional mode.
    介绍了NGK唐山电瓷有限公司如何利用变频器实现对电气试验中电机变速调节的控制,探讨了与传统方式下电机速度调节相比变频器速度调节的优点。
    Based on analyzing the dynamic control method on JB23-W/Z crank press driven by hybrid excitation servo-motor,the varying speed driving on crank presses was discussed,the key experimented data for the further application on more powerful system was obtained.
    以混合励磁伺服电机在JB23-W/Z型曲柄压力机的伺服控制为例进行了压力机变速驱动的分析,取得的实验结果令人满意,为该方案在更大功率压力机上的应用获得了关键的实验数据。
    Vibration is complicated and diversified in varying speed process of engine,and has characteristics of periodicity and multiple frequency.
    发动机变速过程产生的振动复杂多样,具有周期性和频率倍增等特点。
    For a quasi steady-state active balancing system of a speed-varying rotor, according to certain time steps the varying speed of the rotor is discretized into finite constant angular speeds.
    对变速转子准稳态主动平衡系统,可按一定时间步长把变转速离散成有限个转动角速度。
    An analysis method for vibration signals in varying speed process of the rotating machinery is explored.
    研究旋转机械在变速过程中振动信号的分析方法。
 

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