A survey of recent innovations in vibration damping and control using shunted piezoelectric transducers

Abstract

Abstract-Research on shunted piezoelectric transducers, performed mainly over the past decade, has generated new opportunities for control of vibration and damping in flexible structures. This is made possible by the strong electromechanical coupling associated with modern piezoelectric transducers. In vibration control applications, a piezoelectric transducer is bonded to, or embedded in a base structure. As the structure deforms, the piezoelectric element strains and converts a portion of the structural vibration energy into electrical energy. By shunting the piezoelectric transducer to an electrical impedance, a part of the induced electrical energy can be dissipated. Hence, the impedance acts as a means of extracting mechanical energy from the base structure. This paper reviews recent research related to the use of shunted piezoelectric elements for vibration damping and control. In particular, the paper presents an overview of the literature on piezoelectric shunt damping and discusses recent observations on the feedback nature of piezoelectric shunt damping systems.

Balanced calibration of resonant piezoelectric RL shunts with quasi-static background flexibility correction

“…Piezoelectric transducers are used in many different scientific and industrial applications for damping and control of the dynamic response of flexible structures [1,2,3].…”

Implementation of an Electronic Circuit for SSSA Control Approach of a Plate Type Element and Experimental Match with a Feed-Forward Approach

“…In this method, the shunt circuit is only used to change the stiffness of the piezoelectric transducer and thus changing natural frequency of the piezoelectric mechanical damper [14,15]. • Resonant Shunts: they are a more efficient family like single mode R-L or resonant multi-mode shunts [13,[15][16][17][18]. These types of shunts generate an electrical resonance with the piezoelectric capacitance.…”

A 2-DOF MEMS Ultrasonic Energy Harvester

“…Although it was originally designed for atomic force microscopy, this device has been used in other applications including a wide range pressure sensor, whose resonance frequency is a function of the pressure and the temperature [20]. Piezoelectric transducers have been used widely in vibration control applications due to their ability to transform electrical energy to mechanical energy and vice-versa [21]. Recently, there has been significant interest to use them as power harvesting devices [22], [23].…”