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| Study and application of 11/2 spectrum and its cepstrum in fault diagnosis |
| WU Wen-bing,CHEN Zhang-bin,YE Fu-lan |
| Fuzhou Technical College of Foreign Studies, Fuzhou, Fujian 350202, China |
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Abstract In order to improve the correct rate of fault diagnosis, through combining cepstrum and 112 dimension spectrum, 112 dimension cepstrum was defined. Theoretically, 112 dimension spectrum, can suppress the Gauss noise completely, cepstrum can reduce false peaks in spectra, but the noise has a significant influence on the cepstrum analysis results. 112 cepstrum, can combine with the advantages of 112 dimension spectrum and cepstrum. Through the application of 112 dimension spectrum, cepstrum and 112 cepstrum in the overflow valve fault diagnosis, the results show that the 112cepstrum can obtain a better effection.
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Received: 19 November 2014
Published: 22 March 2016
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2016, Vol. 37 
