This paper deals with passive monomodal vibration control by shunting piezoelectric actuators to electric impedances constituting\nthe series of a resistance and an inductance. Although this kind of vibration attenuation strategy has long been employed, there are\nstill unsolved problems; particularly, this kind of control does suffer from issues relative to robustness because the features of the\nelectric impedance cannot be adapted to changes of the system. This work investigates different algorithms that can be employed\nto optimise the values of the electric components of the shunt impedance. Some of these algorithms derive from the theory of the\ntuned mass dampers. First a performance analysis is provided, comparing the attenuation achievable with these algorithms. Then,\nan analysis and comparison of the same algorithms in terms of robustness are carried out. The approach adopted herein allows\nidentifying the algorithm capable of providing the highest degree of robustness and explains the solutions that can be employed to\nresolve some of the issues concerning the practical implementation of this control technique.The analytical and numerical results\npresented in the paper have been validated experimentally by means of a proper test setup.
Loading....