title: Frequency spectra of beam-plates revisited.
abstract: Based on Mindlin's plate theory, the frequency spectra for flexural and thickness-shear vibrations of a finite beam-plate with different combinations of boundary conditions are presented and studied. Comparing them with the dispersion curves of the infinite beam-plate reveals an intrinsic relation between resonant vibration and guided wave propagation. The fundamental frequency spectra, which are for beam-plates with hinged and/or guided edges, are found to play an important role in understanding the spectra of beam-plates with other boundary conditions.
authors.affiliation: Department of Civil Engineering, Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Zhejiang University, Hangzhou, PR China.
authors.forename: Y Q
authors.initials: YQ
authors.lastname: Guo
authors.forename: W Q
authors.initials: WQ
authors.lastname: Chen
authors.forename: Y H
authors.initials: YH
authors.lastname: Pao
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008962:Models, Theoretical; D012542:Scattering, Radiation; D014159:Transducers; D014465:Ultrasonics