WAVELET ANALYSIS IN VIBRO-ACOUSTIC CONTROL METHOD
Abstract
The article shows advantages of continuous wavelet analysis in comparison with fast Fourier transform in the vibro-acoustic control of multilayer constructions. Evidence of above mentioned advantages was obtained, in particular in laboratory conditions using a model in the form of a marble slab and supporting marble cubes. Wavelet spectrum makes it possible to investigate in detail all high-frequency components, which are located at the beginning of the timeline and quickly die out, while the amplitude of the oscillations of the slab significantly reduces on the dominant mode.
About the Authors
M. Ya. Kvashnin
Kazakh Academy of Transport and Communications n. a. M. Tynyshpayev, Almaty
Kazakhstan
Kazakhstan
Ph.D. (Tech.), associate professor at the department of Transport construction
N. M. Kvashnin
LLC «EXPERT», Moscow
Russian Federation
Ph.D. (Tech.), head of the department
Russian Federation
Ph.D. (Tech.), head of the department
I. S. Bondar
Moscow State University of Railway Engineering (MIIT), Moscow
Russian Federation
Russian Federation
external Ph.D. student at the department of Bridges and tunnels
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Review
For citations:
Kvashnin M.Ya., Kvashnin N.M., Bondar I.S. WAVELET ANALYSIS IN VIBRO-ACOUSTIC CONTROL METHOD. World of Transport and Transportation. 2014;(6):78-84.
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