Open AccessГолографические интерферограммы вибрирующего тонкого дискового резонатора из пьезокерамики при асимметричном нагружении точечной массой
Author(s) -
В.А. Титов
Publication year - 2019
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2019.04.47320.116-18
Subject(s) - antiresonance , physics , piston (optics) , resonator , excitation , mode (computer interface) , interferometry , optics , acoustics , piezoelectricity , computer science , wavefront , quantum mechanics , operating system
Deformations of the base of a free piezoceramic resonator that represents a thin disk are visualized using holographic interferometry under high-intensity electric excitation at antiresonance frequencies of radial modes. Motion of a loading point mass along the radial coordinate is used to specify identification of partial modes and the total number and energy interaction of such modes. Four topologically compatible modes form a single mode on which the pattern of Lamb modes is superimposed under certain experimental conditions, and an implicit piston mode is obtained.