Based on the research of crank bearing wear fault mechanics, the fault feature extraction and fault diagnosis method are further studied.
在曲柄轴承磨损故障机理的研究基础上，论文对其故障特征信息提取及故障识别方法开展了进一步的研究。
The combination of curvilinear component analysis (CCA) and self-organizing feature map (SOFM) were applied to a diagnosis for fault feature extraction of bearing.
提出曲元分析(CCA)和自组织特征映射(SOFM)相结合的方法用于轴承的故障诊断特征提取。
During the gear fault detection and diagnosis, the fault feature extraction is the key of diagnosis, but it is multifarious for the method of fault feature extraction.
在齿轮故障监测与诊断中，故障特征提取是诊断的关键，而特征提取的方法也是多种多样的。
Due to high temporal and frequency resolution and high energy focus, the accuracy of fault signal feature extraction is greatly improved by WVD.
WVD很高的能量聚集性和很好的时频分辨率，极大地提高了故障信号特征提取的准确度。
In the view of feature signal extraction, the local wave time-frequency analysis and information entropy were used to deal with fault diagnosis.
从特征信号提取的角度出发，采用局域波时频分析和信息熵结合的方法进行往复式压缩机故障诊断。
In mechanical condition monitoring and fault diagnosis, feature extraction is the most important issue.
在机器状态监测和故障诊断中，特征提取是一个非常重要的问题。
The results show that the new feature extraction programs can be improved to some extent, distinguish between degrees of fault characteristics.
结果表明，该特征提取方案可以在一定程度上提高了故障特征的区分度。
Fault diagnosis includes data collection, signal analysis, feature extraction and decision making.
故障诊断包括信号采集、信号分析、特征提取、诊断决策等环节。
This paper verified the effectiveness of the fault diagnosis method based on 2d-hmm for centrifugal pump, by applying several signal feature extraction methods combining 2d-hmm model.
在应用本文所采用的几种信号特征提取方法的基础上，结合2d -HMM模型，验证了基于2d - H MM的离心泵故障诊断方法的有效性。
This paper goes on the rolling bearing as the research object, researching the new theories and methods of bearing fault signal feature extraction.
本文以滚动轴承为研究对象，应用新理论，提出轴承故障信号特征提取的新方法。
This paper goes on the rolling bearing as the research object, researching the new theories and methods of bearing fault signal feature extraction.
本文以滚动轴承为研究对象，应用新理论，提出轴承故障信号特征提取的新方法。
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