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varying speed
相关语句
  变速
    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
短句来源
    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。
短句来源
    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。
短句来源
    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。
短句来源
    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。
短句来源
更多       
  变速
    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
短句来源
    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。
短句来源
    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。
短句来源
    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。
短句来源
    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。
短句来源
更多       
  “varying speed”译为未确定词的双语例句
    PSEUDO-SYNCHRONOUS SIGNAL RESAMPLING OF VARYING SPEED MACHINERY VIBRATION-I. ESTIMATION OF INSTANTANEOUS SPEED AND ANGLE POSITION
    变速机械振动信号的伪同步重采样技术——Ⅰ速度与角位置的瞬时估计方法
短句来源
    An Experimental Study on the Influence of Varying Speed Grinding on the Increasing Rate of Chatter
    变速磨削对颤振增长率影响的试验
短句来源
    The dissertation puts forward the pseudo-synchronous signal resample(PSSR)technique, so we can computer order domain analysis to processing vibration signal and abstract the feature related to the speed of varying speed pump.
    提出了用于变频调速水泵振动信号预处理的基于振动数据伪同步重采样阶比分析的方法,可有效地获取故障类型与转速有关的特征。
短句来源
    A model is established indicating motion errors concerning RV-MI Type Robot in the papter which reaches a conclusion that the regulation and law governing the robot′s varying motion error and the tools′ angles varying will increase as the motion errors increase, therein, with their varying speed being gradually lowered.
    建立了RV-MI机器人的运动误差模型,得出了机器人运动误差与工具安装角的变化规律为随安装角的增大,运动误差增大,且变化速度逐渐减缓。
短句来源
    The hydraulic transmission means that power is transmitted by kinetics of liquid,with the properties of varying speed,soft driving and protecting from overloading.
    液力传动指的是利用液体动能进行能量转换的装置 ,具有随负载扭矩变化而自动调速及柔性传动、过载保护等优点 .
短句来源
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  varying speed
The average error in yield estimate was 3.4% and 5.2% at constant ground speed and varying speed, respectively.
      
Varying speed of speaking affected the segmentation of the two syllables by the normal-hearing more than it affected the segmentation by the hearing-impaired.
      
In this paperwewill derive a generalized uncertainty principle (GUP) in a simple varying speed of light (VSL) model.
      
Generalized Uncertainty Principle in a Simple Varying Speed of Light Model
      
The issue of a varying speed of light in mirage cosmology is addressed and we find a scenario in which ceff always increases, tending asymptotically to c0 as the universe expands.
      
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Static strength design of a crane mechanism is usually carried out with consideration of its uniform speed operation, actually the mechanism is working with a varying speed during its start and retardation, so the inner forces of its parts continuously varying with time. This paper gives the calculation models of elements expressed in matrices through the dynamic analysis of rigid dynamic models of crane mechanisms. For different mechanism, motion differential equations can be obtained as a result...

Static strength design of a crane mechanism is usually carried out with consideration of its uniform speed operation, actually the mechanism is working with a varying speed during its start and retardation, so the inner forces of its parts continuously varying with time. This paper gives the calculation models of elements expressed in matrices through the dynamic analysis of rigid dynamic models of crane mechanisms. For different mechanism, motion differential equations can be obtained as a result of accumulating the calculation models of different elements. The solution of the equations gives the instantaneous inner forces and accelerations of the parts.

起重机传动机构通常按稳速运动状态作静态强度设计。实际上机构在起制动阶段是处于非稳速状态,各元件的内力随时间变化。本文通过对机构刚体动力模型的动态分析,列出了以矩阵表示的单元体计算模式。针对不同机构,组集各单元体计算模式就能建立元件的运动微分方程。求解方程即可获得各元件瞬时内力和加速度。

In this paper,the unstationary random vibration signal is analysed by wavelet decomposition and its frequency spectrums are further obtained by Fourier transformation. According to the characteristics of the frequency spectrams,the fault diagnosis can be made for varying speed machinery. As an example,the fault diagnosis of a varying speed cooling system,which is the main part of a 3 500 t/h large cooling tower of a coldˉrolled steel factory is carried out,and its result shows that the method presented...

In this paper,the unstationary random vibration signal is analysed by wavelet decomposition and its frequency spectrums are further obtained by Fourier transformation. According to the characteristics of the frequency spectrams,the fault diagnosis can be made for varying speed machinery. As an example,the fault diagnosis of a varying speed cooling system,which is the main part of a 3 500 t/h large cooling tower of a coldˉrolled steel factory is carried out,and its result shows that the method presented here is feasible and effective for practical use.

首先利用小波分析将非平稳随机信号进行分解,然后再由Fourier变换对分解后的信号进行频谱分析,最终根据各频谱特征,实现对变速机械的故障诊断.以某冷轧厂新增3500t/h大型冷却塔用变速及冷却系统的故障诊断为例,验证了本文提出的用小波分析对变速系统进行故障诊断的有效性

This paper deals with the lubricating system of ammonia compressor VVVF transformed In this paper,a method of replenishing lubricating oil with auxiliary pump,based on analysis of the construction and principle of the lubricating system,is developed for the madequate of oil during the course of varying speed A fuzzy control system of the auxiliary lubricating pump has been designed and put into operation in Daqing Petrochemical Plant since December 1996 and satisfactory results have been obtained The...

This paper deals with the lubricating system of ammonia compressor VVVF transformed In this paper,a method of replenishing lubricating oil with auxiliary pump,based on analysis of the construction and principle of the lubricating system,is developed for the madequate of oil during the course of varying speed A fuzzy control system of the auxiliary lubricating pump has been designed and put into operation in Daqing Petrochemical Plant since December 1996 and satisfactory results have been obtained The principle of electric control system,the fuzzy controller and the coordinate of lubricating system and compressor are given in the paper

本文以氨压缩机在变频调速改造中的润滑问题为研究对象,针对调速过程中出现的润滑油量不足问题,通过分析润滑系统的结构和工作原理,提出了外加辅助油泵补油的改进方法,并根据润滑系统在调速中数学模型不易确定的特点,采用了不依赖于数学模型的模糊控制方法构成辅助油泵的控制系统。文中详细阐述了改造后润滑系统的电气控制系统原理、模糊控制器设计以及润滑系统和氨压缩机在调速中的协调、配合问题。该系统在大庆石化总厂一段时间的实际运行情况表明,改进后润滑系统的动、静态特性完全达到了工艺指标的要求,运行效果良好。

 
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