This paper introduces the Handan Co generation Power plant, intermediate pressure rotor's last stage-blade frequency reach dangerous resonance area when 200mw units were overhauled.
介绍了邯郸热电厂2 0 0 MW机组大修中，中压转子末级叶片组频率落入危险的共振区。
The portable blade frequency measurement instrument based on DSP is designed next. The DSP-based circuit board is made and the software program for testing hardware circuit board is coded.
论文完成基于DSP芯片的便携式叶片频率测试仪的硬件电路设计和电路板的制作，并完成对电路板的测试。
It usually appears at the RF, blade passage frequency and commutator brush frequency, and their higher harmonics.
它通常出现在射频，叶片通过频率和整流子刷频率，其高次谐波。
Based on data analysis in both time and frequency domain, characteristics of blade vibration response at rotating stall and surge condition are introduced.
在对时域和频域数据分析的基础上，论述了旋转失速和喘振状态下叶片振动响应的特征。
The measurement accuracy and work efficiency are greatly improved by turbine blade natural frequency measurement system based on industrial PC.
基于PC机的汽轮机叶片静态频率测量系统可大大提高测量的精确度和工作效率。
The modification for the natural frequency and the mode of vibration of blade are needed to treat the fault of steam turbogenerator caused by it's blades.
为分析处理汽轮发电机组运行中因叶片振动引起的故障，需调整叶片的固有频率和振型。
The results show that bubble frequency and gas holdup distributed highly surrounding the blade and uniformly in rest of the bath.
结果表明，气泡频率和含气率在喷头附近分布很高，在其它部位分布是均匀的。
Exact measurement for the actual vibration frequency of the blade was the focus.
准确地测量叶片实际振动的频率和振幅已成为透平机械的一个重要研究方向。
These low frequency spectrum lines are basically the harmonics of the rotor shaft frequency and the blade-passing frequency.
并且这些低频线谱基本上都是转子轴频和叶频的谐波分量。
We'll acquire the small broken rate when speed ratio is big, the angle of knife dish is small, amplitude and frequency is small, the number of blade is 4.
速度比较大、刀盘倾角较小、振幅与频率较小、刀片数量为4把时可以获得较小的破头率。
Experimental results show that under the effect of the rotor wake, the dominant frequencies of pressure fluctuations on stator blades are the rotor blade passing frequency (BPF) and its harmonics.
实验结果表明：在转子尾迹的影响下，静子叶片表面的波动频率是转子的尾迹频率及其倍频。
Analysis based on the failure characteristics indicates that the nylon gum on bottom of dovetail and the long term operation can significantly reduce the natural frequency of blade.
故障分析表明：经长期使用的叶片在修理厂大修时，为满足叶片摆动量要求在榫头底面涂尼龙胶，会使叶片自振频率有较大幅度下降；
In this paper, a natural frequency-measuring device for turbine blade is developed, and its constructing and working principles based on spectrum analysis are presented.
简要介绍了基于频谱分析的汽轮机叶片自振频率测量系统的组成和工作原理。
Though asymmetry stator mistuned may result in bigger amplitude aerodynamic force with the same frequency as rotational speed, it could reduce effectively the aerodynamic force of blade as a whole.
不对称叶栅非谐设计虽然会引起与转速同频的较大幅值激振力成分，但从整体考虑可有效降低叶片振动应力。
The 6th stage blade in aero-engine compressor is taken as an example, the temperature effect on the blade vibration frequency blade is investigated.
以某型航空发动机压气机第六级叶片为例，研究了温度对叶片振动频率的影响。
It is a basic formula of acoustic characteristics in discrete frequency of the blade in which the gas flowing has many classes.
这是多级叶轮气流系统离散性频率声学特性的一个基衣公式。
However, it increases the X-ray more frequency, and high cost in hospital, that would hinder LISS blade plate to be popular in clinic.
但微创固定系统接骨板内固定术术中透视次数多，住院费用较高，阻碍其临床的广泛使用。
However, it increases the X-ray more frequency, and high cost in hospital, that would hinder LISS blade plate to be popular in clinic.
但微创固定系统接骨板内固定术术中透视次数多，住院费用较高，阻碍其临床的广泛使用。
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