| 赫姆霍兹共振式消声器内部的声场特性分析 |
| |
| 引用本文： | 范钱旺,沈颖刚,张韦,石玲,陈贵升.赫姆霍兹共振式消声器内部的声场特性分析[J].电声技术,2007,31(8):67-69,74. |
| |
| 作者姓名： | 范钱旺 沈颖刚 张韦 石玲 陈贵升 |
| |
| 作者单位： | 昆明理工大学,云南,昆明,650224 |
| |
| 基金项目： | 云南省教育厅基金项目(6Y0143D)，天津大学内燃机国家重点实验室开放基金资助项目 |
| |
| 摘 要： | 基于有限元法,运用声学软件Sysnoise建立有限元模型,仿真计算了赫姆霍兹共振式消声器内部有、无气流时的声压分布特性、速度分布特性,仿真结果表明:赫姆霍兹共振式消声器在频率较低时以一维平面波形式传播,高频时以高次模式波传播,且气流对声压、速度分布有较大影响。
|
| 关 键 词： | 声压分布 速度分布 共振消声器 |
| 文章编号： | 1002-8684（2007）08-0067-03 |
| 修稿时间： | 2007-04-09 |
Analysis on Interior Sound Field in Helmholtz Resonance Muffler |
| |
| FAN Qian-wang,SHEN Ying-gang,ZHANG Wei,SHI Ling,CHEN Gui-sheng.Analysis on Interior Sound Field in Helmholtz Resonance Muffler[J].Audio Engineering,2007,31(8):67-69,74. |
| |
| Authors: | FAN Qian-wang SHEN Ying-gang ZHANG Wei SHI Ling CHEN Gui-sheng |
| |
| Affiliation: | Kunming University of Science and Technology, Kunming 650224, China |
| |
| Abstract: | The finite element model is built on the base of the principle of the finite element method and acoustics software Sysnoise. The interior sound pressure distribution, which is on the condition of with air current and no air current, and velocity distribution in Helmholtz resonance muffler are gained in the computer simulation. The simulating results show that in Helmholtz resonance muffler the sound wave spreads in the form of plane and high mode wave respectively when the frequency is low and high, and the air current has great effects on the pressure and velocity distribution. |
| |
| Keywords: | sound pressure distribution velocity distribution resonance muffler |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
