Energy analysis in a nonlinear hybrid system containing linear and nonlinear subsystems coupled by hereditary element |
| |
Authors: | Katica Hedrih |
| |
Institution: | (1) Faculty of Mechanical Engineering, Mathematical Institute SANU, University of Niš, Yu-18 000, ul. Vojvode Tankosića 3/22, Niš, Serbia |
| |
Abstract: | Energy transfer between subsystems coupled by standard light hereditary element in hybrid system is very important for different
engineering applications, especially for dynamical absorption. An analytical study of the energy transfer between coupled
linear and nonlinear oscillators in the free vibrations of a viscoelastically connected double-oscillator system as a new
hybrid nonlinear system with two and half degrees of freedom is pointed out. The analytical study shows that the viscoelastic–hereditary
connection between oscillators causes the appearance of like two-frequency regimes of subsystem's vibrations and that the
energy transfer between subsystems appears.
The Lyapunov exponents corresponding to each of two eigenmodes of the hybrid system, as well as to the subsystems are obtained
and expressed by using energy of the corresponding eigentime components. The Lyapunov exponents are measures of the vibration
processes stability in the hybrid system and in component subsystem vibrations.
In Honor of Giuseppe Rega and Fabrizio Vestroni on the Occasion of their 60th Birthday. |
| |
Keywords: | Transfer of energy between subsystems Hybrid system Viscoelastic constraint Standard light hereditary element Analytical solution Lyapunov exponents |
本文献已被 SpringerLink 等数据库收录! |
|