1) the characteristic frequency of fault rolling bearing
故障特征频率
2) fault characteristic band
故障特征频带
1.
Fault data of blade flying-away, oil film surge, steam vibration and serious impact/rub have been analyzed and their fault characteristic bands have been found.
采用半正交3次B样条小波包变换,对现场采集到的转动部件飞脱、油膜振荡、汽流激振、严重动静碰摩等4种机组突发性故障过渡过程数据进行了分析,提取了各故障对应的特征频带,并对量化后的故障特征频带能量数据进行了归一化,以利于下一步对突发性故障的模式识别。
3) rolling element bearing
故障特征倍频
1.
Geometry number of rolling element bearings and estimation of characteristic octave frequencies of bearing defects;
滚动轴承的几何常数和故障特征倍频的估计方法
4) Fault feature
故障特征
1.
Extraction of the Fault Features of Ball Bearings Based on Bispectrum Analysis;
基于双谱分析的滚动轴承故障特征提取
2.
Method of fault feature extraction for analog circuits based on EMD
一种基于EMD的模拟电路故障特征提取方法
3.
In order to get a characterized wavelet with expected properties of fault features extraction,by using the lifting scheme(LS),a new wavelet is constructed.
采用新小波的非抽样小波变换较好地提取了压缩机齿轮箱摩擦和高压缸碰摩的故障特征。
5) fault characteristics
故障特征
1.
Analysis of the fault characteristics of a rotor with a transverse crack;
裂纹轴转子系统故障特征分析
6) fault characteristic
故障特征
1.
The fault will result in fault characteristic component in stator current.
转子断条故障会在定子电流中产生故障特征频率分量,在起动过程中,此特征频率分量不易被工频分量淹没,有利于提取。
2.
The fault characteristics of transient travelling waves are described using the dyadic discrets wavelet transform (DDWT) to present the travelling waves.
针对暂态行波故障特征难于表达和提取 ,把小波变换应用于暂态行波故障特征刻划和描述 ,给出了电流行波、电压行波、正向方向行波和反向方向行波故障特征的小波变换模极大值表示 ;并对 4种行波的故障特征进行了初步分析和比较。
3.
With FEM used to simulate the rotor system on which the looseness fault is occurring,the fault characteristics are obtained as follows.
采用有限元方法对发生松动故障的转子系统进行模拟,得到系统的故障特征。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条