期刊
CERAMICS INTERNATIONAL
卷 41, 期 -, 页码 S856-S860出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.03.159
关键词
Piezoelectric shell stack; Radial vibration; Mode analysis
资金
- National Natural Science Foundation of China [61302015, 61471047]
- Foundation of Beijing College Innovation Capability Promotion Plan [PXM2015_014224_000028]
The vibration properties of layers of piezoelectric shells are investigated by theoretical analysis, finite element simulation, and experimental measurement. The equivalent admittance of a 2-layered shell is first analyzed based on the admittance equation of a single shell, and the resonant frequencies of shell stacks are then deduced by setting the equivalent admittance to infinity. The analytical expressions are calculated numerically, and the results are expressed in terms of resonant frequencies and bandwidths as a function of average radius. Comparisons with calculation, finite element analysis and measurement show general agreement, although the bandwidth figures show some variations. (C) 2015 Published by Elsevier Ltd and Techna Group S.r.l.
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