Time-frequency analysis of SH waves in an isotropic plate bordered with one elastic solid layer
作者： Fuxian Song , Yi Lu , Dong Zhang , Zhemin Zhu
DOI: 10.1007/S11434-006-2074-4
关键词:
摘要: A time-frequency analysis method is proposed to analyze the shear-horizontal (SH) waves propagating in an isotropic plate bordered with one elastic solid layer. To examine validity of this approach, SH wave signals simulated by finite element modeling are analyzed reassigned short-time Fourier transform. The extracted dispersion data good agreement results derived from equations. Results indicate that increase loading layer thickness can cause a decrease group velocity SH0 mode and cut-off frequency higher modes, implying possibility for evaluation using method. limitations also discussed paper.
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