Application of the modified infinite element method to two-dimensional transient acoustic radiation

被引：3
|
作者：
Li, LX [1 ]
Sun, JS
Sakamoto, H
机构：
[1] Xian Jiaotong Univ, Sch Civil Engn & Mech, Xian 710049, Peoples R China
[2] AOKI Corp, Tech Res Inst, Tsukuba, Ibaraki 3002622, Japan
来源：
APPLIED ACOUSTICS | 2003年 / 64卷 / 01期
关键词：
finite element; infinite element; Helmholtz' equation; wave equation;
D O I：
10.1016/S0003-682X(02)00048-8
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
By introducing the concept of modified sound pressure, Helmholtz' equation is converted into another form of differential equation. On this basis, an infinite element approach is proposed to solve transient acoustic radiation in unbounded domain by establishing a new type of shape function, which does not need a wave-like factor. Numerical tests indicate that this approach is free from "rule of thumb" mesh adjustments. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：55 / 70
页数：16
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