Abstract
Piezoelectric shunt damping is promising in vibration suppression of thin structures. A Low-power direct adaptive synchronized switch damping on voltage (LDA-SSDV) circuit is designed to solve the stability problem of the SSDV without additional vibration strength monitoring devices. Based on the linear relationship between the maximum piezovoltage and the values of series voltage sources, we use simple envelope detectors and resistive voltage dividers to control the voltage sources. And the voltage sources are activated during the switching events for saving energy. The experimental results show that the LDA-SSDV circuit has a stable operation and similar vibration suppression level compared to SSDV.
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