Piezoelectric shunt damping is a well known technique to damp the vibrations of mechanical structures. The design of the electrical shunt aims to maximize the energy dissipation. Beside linear networks, switching circuits are a technique that can adapt to varying excitation frequencies. In this paper, the maximum damping performance of the SSDI technique is analyzed and compared to linear LR-shunts. It is shown that it can perform about 60% better.

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