Eventos Anais de eventos
DINAME 2017
XVII International Symposium on Dynamic Problems of Mechanics
Nonlinear damping to increase energy transfer in tuning fork gyroscope
Submission Author:
Marcos Silveira , SP
Co-Authors:
Marcos Silveira, Arthur Corazza, Maryam Ghandchi Tehrani, José Manoel Balthazar
Presenter: Arthur Corazza
doi://10.26678/ABCM.DINAME2017.DIN17-0200
Abstract
In this work, the dynamic behavior of a gyroscope of the tuning fork type for energy recovery will be studied. The gyroscope consists of two vertical posts embedded on a mass of suspension. The suspended mass is subject to vertical excitation force, and it can be shown that the system is a parametrically excited system. When the beams oscillate in phase, the parametric excitation can lead to vibration in the horizontal movement of the suspension mass. The problem is particularly interesting for capture or energy recovery. Due to the interaction between the degrees of freedom of the system, energy is transferred from the vertical toward the horizontal direction. Parametric studies will be performed to analyse the dynamic behavior of the system with respect to energy recovery performance. The inclusion of nonlinear damping on the energy transfer between the degrees of freedom will be analysed, including in phase and out of phase movement of the vertical beams, under harmonic excitation. The existence of periodic, quasiperiodic and chaotic regimes, and its influence on the energy transfer between the vertical and horizontal directions will be studied.
Keywords
tuning fork gyroscope, parametric excitation, nonlinear damping
