Abstract
In this work the mathematical modeling and analysis of the chaotic dynamics of flexible Euler-Bernoulli beams is carried out. The Karman-type geometric non-linearity is taken into account. The algorithms reducing the studied objects associated with the boundary value problems are to the Cauchy problem using the finite difference method (FDM) with an approximation of and the finite element method (FEM). The constructed Cauchy problem is solved using the fourth and six Runge-Kutta methods. The validity and reliability of the obtained results is rigorously discussed. We analyze time histories, phase and modal portraits, autocorrelation functions, the Poincarè and pseudo-Poincarè maps, signs of the first four Lyapunov exponents, as well as the compression factor of the phase volume of an attractor. In particular, we study a transition from symmetric to asymmetric vibrations, and we explain this phenomenon. Vibration-type charts are reported regarding two control parameters: The amplitude and the frequency of the uniformly distributed periodic excitation. Furthermore, we have detected and illustrated chaotic vibrations of the Euler-Bernoulli beams for different boundary conditions and different beam thicknesses. 2O(c).
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 14th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2013 |
| Publisher | Civil-Comp Press |
| Volume | 102 |
| ISBN (Print) | 9781905088577 |
| Publication status | Published - 1 Jan 2013 |
| Externally published | Yes |
| Event | 14th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2013 - Cagliari, Sardinia, Italy Duration: 3 Sep 2013 → 6 Sep 2013 |
Conference
| Conference | 14th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2013 |
|---|---|
| Country | Italy |
| City | Cagliari, Sardinia |
| Period | 3.9.13 → 6.9.13 |
Fingerprint
Keywords
- Attractors
- Bifurcations
- Chaotic vibrations
- Phase portraits
- Temporal-space chaos
- The euler-bernoulli beams
ASJC Scopus subject areas
- Environmental Engineering
- Civil and Structural Engineering
- Computational Theory and Mathematics
- Artificial Intelligence
Cite this
On the lyapunov exponents computation of coupled non-linear euler-bernoulli beams. / Awrejcewicz, J.; Krysko, A. V.; Dobriyan, V.; Papkova, I. V.; Krysko, V. A.
Proceedings of the 14th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2013. Vol. 102 Civil-Comp Press, 2013.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - On the lyapunov exponents computation of coupled non-linear euler-bernoulli beams
AU - Awrejcewicz, J.
AU - Krysko, A. V.
AU - Dobriyan, V.
AU - Papkova, I. V.
AU - Krysko, V. A.
PY - 2013/1/1
Y1 - 2013/1/1
N2 - In this work the mathematical modeling and analysis of the chaotic dynamics of flexible Euler-Bernoulli beams is carried out. The Karman-type geometric non-linearity is taken into account. The algorithms reducing the studied objects associated with the boundary value problems are to the Cauchy problem using the finite difference method (FDM) with an approximation of and the finite element method (FEM). The constructed Cauchy problem is solved using the fourth and six Runge-Kutta methods. The validity and reliability of the obtained results is rigorously discussed. We analyze time histories, phase and modal portraits, autocorrelation functions, the Poincarè and pseudo-Poincarè maps, signs of the first four Lyapunov exponents, as well as the compression factor of the phase volume of an attractor. In particular, we study a transition from symmetric to asymmetric vibrations, and we explain this phenomenon. Vibration-type charts are reported regarding two control parameters: The amplitude and the frequency of the uniformly distributed periodic excitation. Furthermore, we have detected and illustrated chaotic vibrations of the Euler-Bernoulli beams for different boundary conditions and different beam thicknesses. 2O(c).
AB - In this work the mathematical modeling and analysis of the chaotic dynamics of flexible Euler-Bernoulli beams is carried out. The Karman-type geometric non-linearity is taken into account. The algorithms reducing the studied objects associated with the boundary value problems are to the Cauchy problem using the finite difference method (FDM) with an approximation of and the finite element method (FEM). The constructed Cauchy problem is solved using the fourth and six Runge-Kutta methods. The validity and reliability of the obtained results is rigorously discussed. We analyze time histories, phase and modal portraits, autocorrelation functions, the Poincarè and pseudo-Poincarè maps, signs of the first four Lyapunov exponents, as well as the compression factor of the phase volume of an attractor. In particular, we study a transition from symmetric to asymmetric vibrations, and we explain this phenomenon. Vibration-type charts are reported regarding two control parameters: The amplitude and the frequency of the uniformly distributed periodic excitation. Furthermore, we have detected and illustrated chaotic vibrations of the Euler-Bernoulli beams for different boundary conditions and different beam thicknesses. 2O(c).
KW - Attractors
KW - Bifurcations
KW - Chaotic vibrations
KW - Phase portraits
KW - Temporal-space chaos
KW - The euler-bernoulli beams
UR - http://www.scopus.com/inward/record.url?scp=84893924279&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84893924279&partnerID=8YFLogxK
M3 - Conference contribution
SN - 9781905088577
VL - 102
BT - Proceedings of the 14th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2013
PB - Civil-Comp Press
ER -