电子器件Issue(6)：1282-1286,5.DOI:10.3969/j.issn.1005-9490.2015.06.015
高斯束展开法的注记之三：辐射阻抗的简化计算
Further Notes on the Gaussian Beam Expansion III:Simplified Calculation of the Radiation Impedance
摘要
Abstract
A further extension to the Gaussian-beam expansion is alternatively presented. With a well-known result that the circ function is approximated by a sum of Gaussian functions,the Bessel functions of the first kind and the Struve functions of the order n are similarly expanded by some simple mathematical transforms. The approach is widely applied to the sound radiation problem for a large and important group of sources in acoustics. As examples , the numerical results for the radiation impedance from some piston-like sources are given,in a good agreement with those by directly numerical computation of the special functions.关键词
辐射阻抗/高斯束展开/斯特鲁夫函数/贝塞尔函数Key words
radiation impedance/Gaussian-beam expansion/Struve functions/Bessel functions分类
数理科学引用本文复制引用
袁迎春,丁德胜..高斯束展开法的注记之三：辐射阻抗的简化计算[J].电子器件,2015,(6):1282-1286,5.基金项目
国家自然科学基金项目 （）
