Eventos Anais de eventos
CONEM 2018
X Congresso Nacional de Engenharia Mecânica
Numerical and experimental analysis of a non-ideal type system
Submission Author:
Adriano Kossoski , PR
Co-Authors:
Adriano Kossoski, Angelo Marcelo Tusset, Gerson Henrique dos Santos, Rodrigo Tumolin Rocha, Frederic Conrad Janzen, Wagner Barth Lenz, José Manoel Balthazar
Presenter: José Manoel Balthazar
doi://10.26678/ABCM.CONEM2018.CON18-1229
Abstract
Mechanical vibrations are an important research area due to the impact that this phenomenon can have on any system or machine. One class of vibration-related problems that are gaining ground in current research are the non-ideal or finite-energy systems. In a non-ideal type system, at the same time that the excitation source destabilizes the system, it is influenced by its own performance, losing energy. In this type of system, when the angular frequency of the excitation source approaches numerically a value similar to the natural frequency of the structure, the increase of energy in the system stops to relate to the increase of rotation or work of the energy source and ends up serving only to increase the vibration amplitudes of the system. This work aims to present both analytical and experimental analysis of a non-ideal system. The built system consists of a cantilever beam with an unbalanced DC motor at its tip. In the analytical part, the system had its equations obtained and later simulated numerically with the aid of Matlab software. An equivalent system was constructed experimentally and, with the aid of a data acquisition system, experimental results for the nonideal behavior of the system were obtained. The analytical results were compared with the experimental results, where it is possible to observe the similarity and thus the functionality of the mathematical model.
Keywords
Non-ideal system, Vibrations, Sommerfeld Effect, Limited Power Supply, Jump Phenomena
