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声学中的数值模拟方法及其应用范围
引用本文:冯涛,王晶.声学中的数值模拟方法及其应用范围[J].北京工商大学学报(自然科学版),2004,22(1):41-43.
作者姓名:冯涛  王晶
作者单位:北京工商大学,机械自动化学院,北京,100037
摘    要:有限元法、边界元法、统计能量法以及声线声锥法是声学领域中常用的数值模拟方法,本文中分析了各种方法的特点,探讨了以上各种方法之间的综合使用问题,在此基础上对它们的应用范围进行了比较,指出基于波动方程的有限元法和边界元法主要适用于中低频段,而基于能量流模型的统计能量法和几何声学的声线声锥法主要适用于中高频段.最后对数值模拟的实现途径进行了讨论.

关 键 词:有限元  边界元  统计能量分析  声线和声锥
文章编号:1671-1513(2004)01-0041-03
修稿时间:2003年6月6日

NUMERICAL METHALS AND THEIR APPLICATION SCOPE IN ACOUSTIC FIELD
FENG Tao,WANG Jing.NUMERICAL METHALS AND THEIR APPLICATION SCOPE IN ACOUSTIC FIELD[J].Journal of Beijing Technology and Business University:Natural Science Edition,2004,22(1):41-43.
Authors:FENG Tao  WANG Jing
Abstract:Methods, such as FEA(Finite Element Analysis), BEA(Boundary Element Analysis), SEA(Statistical Energy Analysis), and Ray or Beam Tracing, are the usual simulated methods in the acoustic field. The feature of each methods and the problem how to use them synthetically are discussed. Their application scope are compared with each other. BEA and FEA based on the wave equation are mainly used in lower frequency band, SEA based on energy flow model and ray or beam tracing method based on geometry acoustics are mainly used in higher frequency band. The approaches how to realize the acoustic simulation are also metioned.
Keywords:FEA  BEA  SEA  Ray and Beam Tracing
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