Passive and Semi-Active Vibration Control

Our group designs passive and semi-active piezoelectric solutions for suppressing structural vibrations. Piezoelectric elements connected to shunt circuits are combined with tuned mass dampers and resonators. This gives robust multi-modal control that adapts to changing conditions.

1. Semi-active shunted piezoelectric tuned mass dampers
   • Related Publication(s):
     G. M. Chatziathanasiou, N. A. Chrysohoidis, C. S. Rekatsinas, D. A. Saravanos, “A Semi-Active Shunted Piezoelectric Tuned-Mass-Damper for Multi-Modal Vibration Control of Large Flexible Structures”, Journal of Sound and Vibration, 537, 117222, 2022.

     G. M. Chatziathanasiou, N. A. Chrysochoidis, D. A. Saravanos, “Multi-tonal vibration suppression in flexible airframe structures via a semi-active shunted piezoelectric tuned mass damper”, Journal of Vibration and Control, 32(13–14), 3408–3421, 2025.

2. Metastructures with piezoelectric resonators
   • Related Publication(s):
     G. M. Sarmas, D. K. Dimitriou, D. A. Saravanos, N. A. Chrysochoidis, “A beam metastructure for semi-active vibration control via piezoelectric resonators”, Journal of Vibration and Control, 2026.
3. Passive piezoelectric-resistor damping
   • Related Publication(s):
     D. A. Saravanos, “Damped Vibration of Composite Plates with Passive Piezoelectric-Resistor Elements”, Journal of Sound and Vibration, 221(5), 867–885, 1999.

     Y.-J. Lin et al., “An Application of Smart-Structure Technology to Rotor Blade Tip Vibration Control”, Journal of Vibration and Control, 5(4), 639–658, 1999.

Applications

• Flexible airframe and aerospace structures
• Rotor and wind turbine blades
• Lightweight structures with tonal or broadband excitation
• Adaptive vibration isolation