  Smart structures are usually designed with a stimulus-response mechanism to
mimic the autoregulatory process of living systems. In this work, in order to
simulate this natural and self-adjustable behavior, a fuzzy feedback
linearization scheme is applied to a shape memory two-bar truss. This
structural system exhibits both constitutive and geometrical nonlinearities
presenting the snap-through behavior and chaotic dynamics. On this basis, a
nonlinear controller is employed for vibration suppression in the chaotic smart
truss. The control scheme is primarily based on feedback linearization and
enhanced by a fuzzy inference system to cope with modeling inaccuracies and
external disturbances. The overall control system performance is evaluated by
means of numerical simulations, promoting vibration reduction and avoiding
snap-through behavior.
