Title :
Condition Monitoring Based on Estimating Complex Coupling Coefficients
Author :
Park, Hyeonsu ; Powers, Edward J. ; Grady, W. Mack ; Arapostathis, Ari
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX
Abstract :
In this paper, we investigate a novel method to estimate, from measured single time series data, complex quadratic coupling coefficients in order to quantify the "strength" of nonlinear frequency interactions associated with rotating machine degradation. Such knowledge may provide new physical insight and new nonlinear signatures useful for advanced condition monitoring.
Keywords :
condition monitoring; electric machines; time series; advanced condition monitoring; complex coupling coefficient estimation; complex quadratic coupling coefficients; nonlinear frequency interactions; nonlinear signatures; rotating machine degradation; single time series data; Condition monitoring; Couplings; Degradation; Frequency estimation; Frequency measurement; Instrumentation and measurement; Nonlinear systems; Phase detection; Phase frequency detector; Rotating machines; Condition monitoring; complex coupling coefficients; higher-order spectra;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2008. IMTC 2008. IEEE
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1540-3
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2008.4547143
