首页|Analysis of A_0 - and A_1-mode Lamb waves and SH_1-mode plate wave resonance properties on piezoelectric substrate with periodic voids
Analysis of A_0 - and A_1-mode Lamb waves and SH_1-mode plate wave resonance properties on piezoelectric substrate with periodic voids
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The resonance properties of A_0- and A_1-mode Lamb waves and SH_1 mode plate waves in a LiNbO_3 (LN) thin plate bonded to a support substrate with periodic voids were simulated using the finite element method. Resonance properties similar to those of the plate waves were obtained by partially bonding the LN thin plate, and the main displacement nodes of the plate waves appeared on the support substrate. For the A_1-mode Lamb wave on 123°YX-LN/4H-SiC with LN thickness h = 0.15λ (where λ is the wavelength) and void width w to pitch p ratio (w/p) = 0.7, a resonance property with a fractional bandwidth (FBW) of 9.3% was obtained at a phase velocity of 15880 m s~(-1) . For the A_0-mode Lamb wave on 141°YX-LN/ glass with h = 0.28λ and w/p = 0.7, a resonance property with FBW of 4.0% was obtained at a phase velocity of 2690 m s~(-1) .
Shumpei Kobayashi、Masashi Suzuki、Shoji Kakio
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Integrated Graduate School of Medicine,Engineering,and Agricultural Sciences,University of Yamanashi,Kofu 400-8511,Japan
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