| 计及气流的同轴穿孔管排气消声器消声性能的研究 |
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| 引用本文： | 沈颖刚,范钱旺,翁家庆,张韦,石玲.计及气流的同轴穿孔管排气消声器消声性能的研究[J].噪声与振动控制,2008,28(1):108-110,114. |
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| 作者姓名： | 沈颖刚 范钱旺 翁家庆 张韦 石玲 |
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| 作者单位： | 昆明理工大学,交通工程学院,昆明,650224 |
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| 基金项目： | 云南省省院省校科技合作项目
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云南省中青年学术技术带头人后备人才专项基金 |
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| 摘 要： | 基于传递矩阵法,推导基本传递矩阵建立数学模型,运用Matlab数学编程软件编制程序,仿真计算了轴向穿孔管消声器的插入损失随频率、结构参数变化的三维图以及气流速度和温度对消声性能影响的三维图,仿真结果表明：穿孔率、穿孔管壁厚、气流速度和温度对消声器消声性能有着重要影响,这对消声器设计及改进有着重要的指导意义。
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| 关 键 词： | 声学 插入损失 传递矩阵 穿孔管消声器 气流速度 同轴 穿孔管 排气消声器 消声性能 研究 Stream Exhaust Pipe Perforated Axial Acoustic Performance 意义 指导 改进 消声器设计 性能影响 管壁厚 穿孔率 仿真结果 |
| 文章编号： | 1006-1355（2008）01-0108-03 |
| 收稿时间： | 2007-03-07 |
| 修稿时间： | 2007年3月7日 |
A Study on Acoustic Performance of the Axial Perforated Pipe Exhaust Muffler Considering the Stream |
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| SHEN Ying-gang,FAN Qian-wang,WEN jia-qing,ZHANG Wei,SHI Ling.A Study on Acoustic Performance of the Axial Perforated Pipe Exhaust Muffler Considering the Stream[J].Noise and Vibration Control,2008,28(1):108-110,114. |
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| Authors: | SHEN Ying-gang FAN Qian-wang WEN jia-qing ZHANG Wei SHI Ling |
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| Abstract: | Based on the transmission matrix technique, the mathematical model of the axial perforated pipe exhaust muffler was establised. The axial perforated pipe silencer insertion loss with the frequency, the design parameter change graphic model as well as the stream velocity and the temperature to the noise elimination performance influence graphic model was simulated using MATLAB. The simulation result indicated that the perforation rate ,perforated pipe wall thickness,the stream velocity and the temperature have a quite important influence to the noise elimination performance. |
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| Keywords: | acoustics insertion loss transmission matrix the perforated pipe muffler |
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