- Tytuł:
- Extension of the Hamiltonian approach with general initial conditions
- Autorzy:
-
Navarro, H. A.
Cveticanin, L. - Powiązania:
- https://bibliotekanauki.pl/articles/280001.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
- Tematy:
-
nonlinear dynamics
Hamiltonian approach
error estimation - Opis:
- In this paper, the Hamiltonian approach is extended for solving vibrations of nonlinear conservative oscillators with general initial conditions. Based on the assumption that the derivative of Hamiltonian is zero, the frequency as a function of the amplitude of vibration and initial velocity is determined. A method for error estimation is developed and the accuracy of the approximate solution is treated. The procedure is based on the ratio between the average residual function and the total energy of the system. Two computational algorithms are described for determining the frequency and the average relative error. The extended Hamiltonian approach presented in this paper is applied for two types of examples: Duffing equation and a pure nonlinear conservative oscillator.
- Źródło:
-
Journal of Theoretical and Applied Mechanics; 2018, 56, 1; 255-267
1429-2955 - Pojawia się w:
- Journal of Theoretical and Applied Mechanics
- Dostawca treści:
- Biblioteka Nauki