Machine Condition Monitoring Utilizing a Novel Bispectral Change Detection

@article{Park2007MachineCM,
  title={Machine Condition Monitoring Utilizing a Novel Bispectral Change Detection},
  author={Hyeonsu Park and Byungchul Jang and Eleanor Powers and W. Mack Grady and Aristotle Arapostathis},
  journal={2007 IEEE Power Engineering Society General Meeting},
  year={2007},
  pages={1-6}
}
Since a damaged or abnormal-state machine often generates highly nonlinear signals, it is desirable to use a tool that can effectively detect and analyze nonlinear signatures. The bicoherence has been proposed for such nonlinear analysis since it is a measure of the phase coupling between interacting frequency components. However, the bicoherence has some difficulties in machine condition monitoring due to the challenge of distinguishing between the intrinsic nonlinear signature of a healthy… CONTINUE READING

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