ACOUSTIC EIGENFREQUENCIES OF A CYLINDRICAL RECTANGULAR CAVITY WITH AN ECCENTRIC INNER SMALL SPHERE

被引：6

作者：

ROUMELIOTIS, JA

KANELLOPOULOS, JD

FIKIORIS, JG

机构：

[1] Department of Electrical Engineering, National Technical University of Athens, Athens

来源：

JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS | 1992年 / 329卷 / 03期

关键词：

D O I：

10.1016/0016-0032(92)90043-G

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Analytical expressions for the eigenfrequencies of an acoustic cylindrical/rectangular cavity with an eccentric inner small sphere are derived for both Neumann and Dirichlet boundary conditions. A straightforward and simple approach is employed to obtain a first-order perturbation of the cavity wavefunction and the corresponding eigenfrequency shift. The results are useful in a variety of problems connected with acoustic levitation and with excitation or probing of resonant cavities. Numerical results for some of the lower order modes are given for various values of the parameters.

引用

页码：413 / 427

页数：15

共 14 条

[1]

Abramowitz M.., 1972, HDB MATH FUNCTIONS

[2]

[Anonymous], 1987, THEORETICAL ACOUSTIC

[3] DIFFRACTION OF STEADY ACOUSTIC WAVES BY SURFACES OF ARBITRARY SHAPE [J].