Research on the failure character in the shock signal based on the EEMD theory

Author

Xiaofeng, Li ; Mingjie, Liu

Author_Institution

Dept. of Mechatronical Eng., Beijing Inst. of Technol., Beijing, China

Volume

4

fYear

2010

fDate

25-27 June 2010

Abstract

On the basis of the research on the shock signal, the composition and frequency characteristic of the signal are proposed. Through the field test of the engine gearbox, the acceleration signal is achieved and conducted with spectrum analysis to obtain the natural frequency. A method of transient signal analysis based on the EEMD theory of order domain was presented, through the EEMD algorithm, the signal is decomposed and IMFs are achieved. By the analysis of the IMFs, the characteristic of the shock signal is obtained which can be the foundation for us to clearly research the signal and to analyze typical gear failure.

Keywords

failure analysis; frequency-domain analysis; signal detection; time-domain analysis; transient analysis; EEMD theory; IMF analysis; acceleration signal; composition characteristics; engine gearbox; ensemble empirical mode decomposition; failure character; frequency characteristics; shock signal; signal decomposition; spectrum analysis; transient signal analysis; Acceleration; Accelerometers; Electric shock; Failure analysis; Frequency; Gears; Life estimation; Signal analysis; Signal processing; Testing; EEMD method; frequency characteristic; natural frequency; shock signal;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Design and Applications (ICCDA), 2010 International Conference on

Conference_Location

Qinhuangdao

Print_ISBN

978-1-4244-7164-5

Electronic_ISBN

978-1-4244-7164-5

Type

conf

DOI

10.1109/ICCDA.2010.5541143

Filename

5541143