Wavelet transform using for analysis of vibroimpact system chaotic behavior
DOI:
https://doi.org/10.32347/2410-2547.2018.101.14-25Keywords:
vibroimpact system, chaotic behaviour, intermittency, continuous wavelet transform, surface of wavelet coefficientsAbstract
Chaotic behaviour of dynamical systems, their routes to chaos, and the intermittency are interesting and investigated subjects in nonlinear dynamics. The studying of these phenomena in non-smooth dynamical systems is of the special scientists’ interest. In this paper we apply relatively young mathematical tool – continuous wavelet transform CWT – for investigating the chaotic behavior and intermittency in particular in strongly nonlinear non-smooth discontinuous 2-DOF vibroimpact system. We show that CWT applying allows to detect and determine the chaotic motion and the intermittency with great confidence and reliability, gives the possibility to demonstrate route to chaos via intermittency, to distinguish and analyze the laminar and turbulent phases.
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