Title :
Expression of acoustic fields in solids by scalar and vector velocity potentials
Author :
Sato, Masahiro ; Takahata, Yousuke ; Tahara, Minoru ; Sakagami, Iwata
Author_Institution :
Fac. of Eng., Toyama Univ., Japan
Abstract :
We expressed contour vibration modes of a thin square plate by velocity potentials. After a numerical calculation of impulse responses of particle velocity vectors on the surface of the plate, we derived some low frequency contour modes by velocity potentials obtained numerically by the particle velocity vectors. Then we could realize clearly which velocity potential, scalar or vector, was dominant and also what role both potentials had
Keywords :
acoustic field; surface acoustic waves; transient response; vectors; vibrations; acoustic fields; contour vibration modes; impulse responses; low frequency contour modes; particle velocity vectors; scalar velocity potentials; solids; surface; thin square plate; vector velocity potentials; Acoustical engineering; Difference equations; Differential equations; Finite difference methods; Frequency; Impedance; Solids; Stress; Time domain analysis;
Conference_Titel :
Ultrasonics Symposium, 2001 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7177-1
DOI :
10.1109/ULTSYM.2001.991853
