Publicação: Influence of smart material on the dynamical response of mechanical oscillator
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The dynamical response of systems with shape memory alloy (SMA) or magnetorheological damper (MRD) presents a different behavior due to their nonlinear characteristics. Both systems have a nonlinear behavior due to adaptive dissipation related to their hysteretic behavior. This property is very attractive in engineering field. This paper investigates the nonlinear dynamical behavior of an SMA or MRD oscillator system. The LuGre mathematical model is used to represent the MRD behavior. On the other hand, the SMA model is based on a thermomechanical consistent model with four state variables. Numerical simulations show different aspects about these two systems.
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Springer Proceedings in Mathematics and Statistics, v. 93, p. 493-502.
