Traveling wave excitation sources for FEM analysis of scattering in acoustic waveguide

被引：10

作者：

Li, Xinyi ^{[1
,2
]}

Bao, Jingfu ^{[1
]}

Huang, Yulin ^{[1
,2
]}

Zhang, Benfeng ^{[2
,3
]}

Omori, Tatsuya ^{[2
]}

Hashimoto, Ken-ya ^{[2
,3
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 611731, Sichuan, Peoples R China

[2] Chiba Univ, Grad Sch Engn, Chiba 2638522, Japan

[3] Shanghai Jiao Tong Univ, Dept Elect Informat & Elect Engn, Shanghai 200240, Peoples R China

来源：

MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS | 2019年 / 25卷 / 07期

关键词：

FDTD; SUPPRESSION; HYBRID;

D O I：

10.1007/s00542-018-4169-7

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes use of traveling wave type excitation sources for the scattering analysis of acoustic waveguides using the finite element method (FEM). This technique allows to generate only one particular mode selectively. Scattering behavior at arbitrary boundaries can be evaluated accurately and quickly in frequency domain. After describing and demonstrating its operation mechanism in detail, this technique is applied to two cases. First, wave scattering properties are discussed at the end of a two-dimensional closed waveguide. Then the technique is applied to a three-dimensional open waveguide including periodic gratings. The results reveal effectiveness of this technique.

引用

页码：2783 / 2792

页数：10

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