Baza Publikacji Pracowników Politechniki Lubelskiej

Status:
Autorzy:	Litak Grzegorz, Bernardini Davide, Syta Arkadiusz, Rega Giuseppe, Rysak Andrzej
Rok wydania:	2013
Wersja dokumentu:	Drukowana \| Elektroniczna
Język:	angielski
Numer czasopisma:	7
Wolumen/Tom:	222
Strony:	1637 - 1647
Impact Factor:	1,76
Web of Science® Times Cited:	34
Scopus® Cytowania:	36
Bazy:	Web of Science \| Scopus \| Web of Science \| SCOPUS \| MathSciNet
Efekt badań statutowych	NIE
Materiał konferencyjny:	NIE
Publikacja OA:	NIE
Abstrakty:	angielski
	Shape memory materials exhibit strong thermomechanical coupling, so that temperature variations occur during mechanical loading and unloading. In previous works the nonlinear dynamics of pseudoelastic oscillators subject to an harmonic force has been studied and the possibility of non-regular chaotic responses has been thoroughly documented. Instead of the standard Lyapunov exponent treatment, the statistical 0–1 test based on the asymptotic properties of a Brownian motion chain was successively applied to reveal the chaotic nature of trajectories in the special case in which temperature variations were neglected. In this work, the 0–1 test is applied to fully non-isothermal trajectories. To improve its reliability the test has been applied to the time-histories of maxima and minima of each trajectory, in each component. The obtained results have been validated and confirmed by the corresponding Fourier spectra. Non-regular solutions with different levels of chaoticity have been analyzed and their qualitative difference is reflected by the different values to which the control parameter K asymptotically converge.

Informacja o cookies

Analysis of chaotic non-isothermal solutions of thermomechanical shape memory oscillators

Artykuł w czasopiśmie