TY - GEN
T1 - A new trapped mode caused by local defect or thermal inhomogeneity
AU - Li, Peng
AU - Jin, Feng
PY - 2013
Y1 - 2013
N2 - The trapped modes, widely used in resonators, filters, quartz crystal microbalance, and other wave devices, are usually excited by attaching a partially mass layer or electrode on the surface of a plate. A new thickness-twist trapped mode in a transversely piezoelectric plate with a defect or local inhomogeneous temperature in it has been obtained by using of power series expansion method. Numerical results obtained indicate that trapped modes exist in such a damaged or thermal plate, which can not be observed when the plate is homogeneous. The finding of energy trapping phenomenon provides a new style for the excitation of trapped waves.
AB - The trapped modes, widely used in resonators, filters, quartz crystal microbalance, and other wave devices, are usually excited by attaching a partially mass layer or electrode on the surface of a plate. A new thickness-twist trapped mode in a transversely piezoelectric plate with a defect or local inhomogeneous temperature in it has been obtained by using of power series expansion method. Numerical results obtained indicate that trapped modes exist in such a damaged or thermal plate, which can not be observed when the plate is homogeneous. The finding of energy trapping phenomenon provides a new style for the excitation of trapped waves.
KW - Energy trapping
KW - Piezoelectric damage
KW - Power series expansion
KW - Thickness-twist waves
UR - https://www.scopus.com/pages/publications/84904603570
U2 - 10.1109/SPAWDA.2013.6841113
DO - 10.1109/SPAWDA.2013.6841113
M3 - 会议稿件
AN - SCOPUS:84904603570
SN - 9781479932894
T3 - Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
BT - Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
PB - IEEE Computer Society
T2 - 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
Y2 - 25 October 2013 through 27 October 2013
ER -