An Overview of Nonlinear Dynamics of Electro-Mechanical Engineering Systems, Excited by Small Motors
José Manoel Balthazar1; Reyolando M.F.L. Brasil2; Jorge L.P. Felix3; Angelo M. Tusset4; Vinícius Piccirillo4; Silvio L.T. Souza5
1 ITA-Instituto Tecnológico de Aeronáutica -Divisão de Engenharia Mecânica; 2 Federal University of ABC, CECS, SP, Brazil; 3 Federal University of Pampa - Technological Center of Alegrete, RS, Brazil; 4 Federal Technological University of Paraná, UTFPR Ponta Grossa - PR, Brazil; 5 Universidade Federal de São João Del-Rei, Ouro Branco, MG, Brazil
doi:10.20906/CPS/COB-2015-2585
Resumo
The aim of this work is to describe a large number of phenomena caused by the action of vibrations on nonlinear electro-mechanical systems. The main goal of this paper is to give a general description of this class of phenomena which has been discussed in recent years. We remarked that a large number of publications were based on the assumption that the external excitations are produced by an ideal source of power with prescribed time history: prescribed magnitude, phase and frequency, or in random problems with prescribed characteristics. In reality, the excitations sources are non-ideal, thy have always limited; power, limited inertia and their frequencies varies according to the instantaneous state of the vibrating system. We remarked that small motors with limited power are used in laboratory test and therefore the investigations of mutual interaction of driven and driving subsystems are very important. We will discuss several contributions on the past, nowadays and perspective futures in engineering that may be modeled by non-ideal systems with many degrees of freedom. In this lecture, we will present examples of this kind of engineering devices.
Palavras-chave: Nonlinear Dynamics; Electro-Mechanical Systems ; Small Motors ; Limited Power Supply