An ASIC-Based Vibration Damping System

作者：Viant Jean Nicolas^*; Quiquerez Laurent; Lombard Philippe; Lu Guo Neng

来源：IEEE/ASME Transactions on Mechatronics, 2013, 18(1): 148-154.

DOI：10.1109/TMECH.2011.2162651

• Adaptive vibration control (AVC)
• CMOS integrated circuit
• nonlinear control
• synchronized switch damping on inductor (SSDI)

We propose an application-specified integrated circuit (ASIC)-based vibration damping system implementing a semi-active controlling method called synchronized switch damping on inductor (SSDI). The ASIC integrates high-voltage switches and diodes for an "energy-extracting" passive LC shunt circuit and a controlling part for synchronous voltage inversion on the piezoelectric transducer. The controlling part has two channels, each including a range-adaptive voltage divider with protection and a peak detector with switch-control output. The system has been tested with both cantilever beam and three-side-clamped-plate structures. Cantilever beam testing shows a 15 dB damping in forced harmonic regime and a fivefold damping rate in pulsed-excitation transient response. For the three-side-clamped-plate case, wide-band SSDI damping effects are observed. The damping efficiency for each mode depends on the electromechanical coupling factor and the mapping of the piezoelectric-insert damping zones. It also depends on the excitation level, and begins to increase rapidly with vibration magnitude when the piezoelectric transducer's voltage peaks exceed a certain threshold voltage (similar to 0.5V for the system).

• 出版日期2013-2