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Manipulating vibration energy confinement in electrically coupled microelectromechanical resonator arrays

Manipulating vibration energy confinement in electrically coupled microelectromechanical resonator arrays
Manipulating vibration energy confinement in electrically coupled microelectromechanical resonator arrays
This paper reports the first detailed experimental evidence of the phenomena of eigenvalue loci veering and vibration mode localization in microelectromechanical resonator arrays subjected to weak electroelastic coupling. A rapid but continuous interchange of the eigenfunctions associated with the eigenvalues is experimentally observed during veering as the variations in the eigenvalues are studied for induced stiffness variations on one of the coupled resonators. It is also noticed that the electrical tunability of the coupling spring constant in such microsystems enables a manipulation of the severity of modal interchange during veering and in consequence, the extent of energy confinement within the system. These results, while experimentally confirming the elastic behavior of such electrical coupling elements, also suggest that such microsystems provide a unique platform for investigating the general nature and properties of these dynamic phenomena under significantly weaker tunable coupling spring constants that are very difficult to implement in corresponding “macroscopic” systems.
1057-7157
157-164
Thiruvenkatanathan, Pradyumna
42613b52-d83d-4fa9-bc40-337201dfa2a0
Woodhouse, Jim
9d16e0d0-94f5-45cd-8359-77c22be83c09
Yan, Jize
786dc090-843b-435d-adbe-1d35e8fc5828
Seshia, Ashwin A.
6fe2b5b5-e451-41e2-a23a-601c9faf7d8a
Thiruvenkatanathan, Pradyumna
42613b52-d83d-4fa9-bc40-337201dfa2a0
Woodhouse, Jim
9d16e0d0-94f5-45cd-8359-77c22be83c09
Yan, Jize
786dc090-843b-435d-adbe-1d35e8fc5828
Seshia, Ashwin A.
6fe2b5b5-e451-41e2-a23a-601c9faf7d8a

Thiruvenkatanathan, Pradyumna, Woodhouse, Jim, Yan, Jize and Seshia, Ashwin A. (2011) Manipulating vibration energy confinement in electrically coupled microelectromechanical resonator arrays. Journal of Microelectromechanical Systems, 20 (1), 157-164. (doi:10.1109/JMEMS.2010.2090501).

Record type: Article

Abstract

This paper reports the first detailed experimental evidence of the phenomena of eigenvalue loci veering and vibration mode localization in microelectromechanical resonator arrays subjected to weak electroelastic coupling. A rapid but continuous interchange of the eigenfunctions associated with the eigenvalues is experimentally observed during veering as the variations in the eigenvalues are studied for induced stiffness variations on one of the coupled resonators. It is also noticed that the electrical tunability of the coupling spring constant in such microsystems enables a manipulation of the severity of modal interchange during veering and in consequence, the extent of energy confinement within the system. These results, while experimentally confirming the elastic behavior of such electrical coupling elements, also suggest that such microsystems provide a unique platform for investigating the general nature and properties of these dynamic phenomena under significantly weaker tunable coupling spring constants that are very difficult to implement in corresponding “macroscopic” systems.

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Accepted/In Press date: 7 October 2010
Published date: February 2011
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 394199
URI: https://eprints.soton.ac.uk/id/eprint/394199
ISSN: 1057-7157
PURE UUID: 022f8bc8-3d6e-4389-a19d-55fa3927d364
ORCID for Jize Yan: ORCID iD orcid.org/0000-0002-2886-2847

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Date deposited: 10 Jun 2016 15:52
Last modified: 29 Aug 2019 00:31

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Contributors

Author: Pradyumna Thiruvenkatanathan
Author: Jim Woodhouse
Author: Jize Yan ORCID iD
Author: Ashwin A. Seshia

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