Nonlinear discrete-time multirate adaptive control of non-linear vibrations of smart beams

作者：Georgiou Georgios; Foutsitzi Georgia A; Stavroulakis Georgios E^*

来源：Journal of Sound and Vibration, 2018, 423: 484-519.

DOI：10.1016/j.jsv.2017.11.030

• Nonlinear control
• Adaptive control
• Multirate digital control
• Vibration control
• Smart beams

The nonlinear adaptive digital control of a smart piezoelectric beam is considered. It is shown that in the case of a sampled-data context, a multirate control strategy provides an appropriate framework in order to achieve vibration regulation, ensuring the stability of the whole control system. Under parametric uncertainties in the model parameters (damping ratios, frequencies, levels of non linearities and cross coupling, control input parameters), the scheme is completed with an adaptation law deduced from hyperstability concepts. This results in the asymptotic satisfaction of the control objectives at the sampling instants. Simulation results are presented.

• 出版日期2018-6-9