On local analysis of oscillations of a non-ideal and non-linear mechanical model
Meccanica. Dordrecht: Kluwer Academic Publ, v. 39, n. 4, p. 313-330, 2004.
Universidade Federal de Uberlândia (UFU)
Universidade Estadual Paulista (Unesp)
It is of major importance to consider non-ideal energy sources in engineering problems. They act on an oscillating system and at the same time experience a reciprocal action from the system. Here, a non-ideal system is studied. In this system, the interaction between source energy and motion is accomplished through a special kind of friction. Results about the stability and instability of the equilibrium point of this system are obtained. Moreover, its bifurcation curves are determined. Hopf bifurcations are found in the set of parameters of the oscillating system.