On the control of a non-ideal engineering system: A friction-driven oscillating system with limited power supply
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Data
2003-01-01
Autores
Pontes, B. R.
Oliveira, V. A.
Balthazar, José Manoel [UNESP]
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Resumo
In this work a switching feedback controller for stick-slip compensation of a 2-DOF mass-spring-belt system which interacts with an energy source of limited power supply (non-ideal case) is developed. The system presents an oscillatory behavior due to the stick-slip friction. As the system equilibrium for a conventional feedback controller is not the origin, a switching control law combining a state feedback term and a discontinuous term is proposed to regulate the position of the mass. The problem of tracking a desired periodic trajectory is also considered. The feedback system is robust with respect to the friction force that is assumed to be within known upper and lower bounds.
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Palavras-chave
dry friction, limited power supply, non-ideal excitation, nonlinear control, self-excitation
Como citar
Materials Science Forum, v. 440-441, p. 355-362.