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An Analytical Investigation of Interfacial Dissipation in Piezoelectric Block Resonators

[+] Author Affiliations
Zachary Schiferl, John Gardner, Derek Deerfield, Zhili Hao

Old Dominion University, Norfolk, VA

Paper No. IMECE2010-38385, pp. 37-43; 7 pages
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 10: Micro and Nano Systems
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4447-2
  • Copyright © 2010 by ASME


This paper presents an analytical investigation of interfacial dissipation in piezoelectric block resonators. Interfacial dissipation is the loss of vibration energy at the interface between two successive layers in such devices. The physical mechanism of interfacial dissipation is examined within the framework of continuum mechanics. This dissipation is further mathematically formulated in terms of a stress jump across the interface and its accompanying interfacial slip. By assuming the block resonator is an ideal rectangular block, the expressions for interfacial dissipation in two typical types of piezoelectric block resonators are derived. The calculated results are validated by comparison with experimental data in the literature. For the first time, this analytical investigation not only sheds insight on how interfacial dissipation occurs but also provides design guidelines on reducing this dissipation.

Copyright © 2010 by ASME



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