ISSN:
1573-1987
Keywords:
nonlinear interactions
;
wavenumber mismatch
;
resonant matching
;
bispectral analysis
;
wave transition
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract A technique is presented to examine the level of wavenumber mismatch between nonlinearly interacting components whose frequencies obey resonant matching conditions. Cross-correlation of the auto-bispectrum is used to quantify the level of mismatch, and the concept of bispectrum coherency is introduced to determine the confidence level in the wavenumber mismatch measurements. The results show that wavenumber mismatch of the order of one tenth of the fundamental wavenumber can exist between interacting triads whose frequencies obey resonance matching.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01082565
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