title: Experimental evidence of modal wavenumber relation to zeros in the wavenumber spectrum of a simply supported plate.
abstract: The modal wavenumber of rectangular, simply supported, isotropic thin plates was theoretically shown to be related to the zeros in the wavenumber spectrum and not to the peaks, resulting in an error between the actual modal wavenumber and location of the wavenumber spectrum peak for low mode orders. This theoretical proof is confirmed by experimental results reported in this letter.
authors.affiliation: Groupe d'Acoustique de l'Université de Sherbrooke, Université de Sherbrooke, Sherbrooke J1K 2R1, Canada.
authors.forename: Olivier
authors.initials: O
authors.lastname: Robin
authors.affiliation: Groupe d'Acoustique de l'Université de Sherbrooke, Université de Sherbrooke, Sherbrooke J1K 2R1, Canada.
authors.forename: Alain
authors.initials: A
authors.lastname: Berry
authors.affiliation: Groupe d'Acoustique de l'Université de Sherbrooke, Université de Sherbrooke, Sherbrooke J1K 2R1, Canada.
authors.forename: Noureddine
authors.initials: N
authors.lastname: Atalla
authors.affiliation: Applied Research Laboratory, The Pennsylvania State University, P.O. Box 30, State College, Pennsylvania 16804, USA.
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Hambric
authors.affiliation: Applied Research Laboratory, The Pennsylvania State University, P.O. Box 30, State College, Pennsylvania 16804, USA.
authors.forename: Micah R
authors.initials: MR
authors.lastname: Shepherd