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Coupled torsional and longitudinal vibrations of piezoelectric fiber actuator with helical electrodes.
- Source :
-
IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control . 04/01/2011, Vol. 58 Issue 4, p829-837. 0p. - Publication Year :
- 2011
-
Abstract
- The vibration characteristics of a piezoelectric fiber actuator with helical electrodes are studied theoretically and experimentally. Its working principle indicates that the torsional, longitudinal, and tangential deformations of the fiber are coupled. A simplified dynamic model is deduced to investigate the properties of the coupled vibrations and their corresponding equivalent circuits are also provided. Resonant frequencies and mechanical coupling coefficients in free-free boundary condition are calculated. The trends of resonant frequencies as functions of the electrode helical angle and fiber length are discussed and validated in experiments. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 08853010
- Volume :
- 58
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control
- Publication Type :
- Academic Journal
- Accession number :
- 60217434
- Full Text :
- https://doi.org/10.1109/TUFFC.2011.1875