Frontiers of Mechanical Engineering >

2012 , Vol. 7 >Issue 3: 300 - 304

DOI: https://doi.org/10.1007/s11465-012-0328-1

RESEARCH ARTICLE

HHT-based crack identification method for start-up rotor

  • Bing LI ,
  • Chunlin ZHANG ,
  • Zhengjia HE
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  • State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China

Received date: 16 Feb 2012

Accepted date: 04 Apr 2012

Published date: 05 Sep 2012

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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Abstract

This paper presents a crack identification method for start-up rotor based on the Hilbert-Huang transform (HHT). With this method, the instantaneous frequency (IF) of each intrinsic mode function is obtained through the Hilbert transform, and the spectrum of IF is calculated accordingly. The influence of acceleration and crack depth on the rotor is analyzed through experiments. HHT is employed to detect the shallower crack, and is then tested during the start-up process of the rotor. The results of the experiment show that HHT is a better tool for crack detection than fast Fourier transform.

Key words： cracked rotor; start-up; Hilbert-Huang transform (HHT)

Cite this article

Bing LI , Chunlin ZHANG , Zhengjia HE . HHT-based crack identification method for start-up rotor[J]. Frontiers of Mechanical Engineering, 2012 , 7(3) : 300 -304 . DOI: 10.1007/s11465-012-0328-1

Acknowledgements

This work was supported by the project of the National Natural Science Foundation of China (Grant No. 11176024).

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