摘要
以三维有限元计算结果为基础,针对计算简单的古典集中参数频率计算公式,提出了新的连接管长度修正公式,以估算具有不同共振腔深宽比的消声器的共振频率,解决了古典集中参数频率计算公式存在估算精度较低甚至在某些共振腔尺寸条件下失效的问题.
A new connector end correction is presented on the basis of the three dimensional finite element results, which is for the lumped-parameter formula used to predict the resonance frequency of a silencer having various depths to width ratio of the cavity. The problems of the low accuracy are solved even no use for some cavity dimensions of the lumped-parameter formula.
出处
《重庆大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2005年第10期13-16,共4页
Journal of Chongqing University
基金
重庆市科技计划项目(2000-6644)
关键词
共振式消声器
腔体形状
共振频率
修正
resonant silencer
cavity geometry
resonance frequency
correction