Electromechanical Delayed Resonator Implementation using Piezoelectric Networks

Abstract Delayed Resonators (DR) refer to a special type of active vibration absorber system. An intentionally delayed feedback control is used to bring an absorber sub-structure to resonance, in turn canceling vibrations in the primary structure. So far, this theory has been applied to traditional mechanical vibration absorbers with proof masses. This study proposes a new venue for DR-based vibration control using piezoelectric networks. The inherent electro-mechanical coupling of piezoelectric materials has enabled the use of electrical circuits to absorb vibrations in mechanical structures. The DR principles are applied here to create a resonating electrical circuit which offers ideal vibration absorption performance. Experimental studies are also presented to demonstrate the results.

[1]  Nesbitt W. Hagood,et al.  Experimental investigation into passive damping enhancement for space structures , 1991 .

[2]  Nejat Olgac,et al.  Tunable Active Vibration Absorber: The Delayed Resonator , 1995 .

[3]  T. Bailey,et al.  Distributed Piezoelectric-Polymer Active Vibration Control of a Cantilever Beam , 1985 .

[4]  Jean-Pierre Richard,et al.  Time-delay systems: an overview of some recent advances and open problems , 2003, Autom..

[5]  Nejat Olgac,et al.  A Novel Active Vibration Absorption Technique: Delayed Resonator , 1994 .

[6]  Nesbitt W. Hagood,et al.  Damping of structural vibrations with piezoelectric materials and passive electrical networks , 1991 .

[7]  Shu-yau Wu,et al.  Piezoelectric shunts with a parallel R-L circuit for structural damping and vibration control , 1996, Smart Structures.

[8]  K. W. Wang,et al.  Active-passive hybrid piezoelectric networks for vibration control: comparisons and improvement , 2001 .

[9]  Andrew J. Fleming,et al.  Institute of Physics Publishing Smart Materials and Structures Reducing the Inductance Requirements of Piezoelectric Shunt Damping Systems , 2003 .

[10]  Damir Filipović,et al.  Delayed resonator with speed feedback – design and performance analysis , 2002 .

[11]  Robert L. Forward,et al.  Electronic damping of vibrations in optical structures. , 1979, Applied optics.

[12]  Martin Hosek,et al.  A TUNABLE TORSIONAL VIBRATION ABSORBER: THE CENTRIFUGAL DELAYED RESONATOR , 1997 .

[13]  Martin Hosek,et al.  Active Vibration Control of Distributed Systems Using Delayed Resonator With Acceleration Feedback , 1997 .