Active vibration suppression through positive acceleration feedback on a building-like structure: An experimental study
Modeling, modal analysis and active vibration control on a building-like structure with a PZT stack actuator submitted to harmonic and seismic ground motion. Experimental characterization and evaluation using modal analysis techniques and finite element methods. Application of Positive Acceleration Feedback (PAF) and Multiple Positive Acceleration Feedback (MPAF) for active vibration attenuation of one single mode and, simultaneously, for the first three dominant lateral modes. Experimental results for harmonic ground motion lead to attenuations about 67%, 82% and 90%, respectively. Experimental results for seismic-type ground motion yield attenuation about 50%.
positive acceleration feedback modal analysis active vibration control piezoelectric actuator