| 改进车辆进排气系统降低整车车外加速噪声 |
| |
| 引用本文： | 葛蕴珊,张宏波,宋艳冗,谭建伟,韩秀坤,高力平.改进车辆进排气系统降低整车车外加速噪声[J].汽车工程,2006,28(4):376-378. |
| |
| 作者姓名： | 葛蕴珊 张宏波 宋艳冗 谭建伟 韩秀坤 高力平 |
| |
| 作者单位： | 北京理工大学机械与车辆工程学院,北京,100081;泛亚汽车技术中心,上海,201201 |
| |
| 摘 要： | 用GT-POWER建立了发动机与消声器的耦合模型,根据计算得到的发动机的进、排气系统噪声的频谱特性,提出消声器的改进设计方案,通过CFD模拟计算有效抑制消声器内部的再生气体噪声;设计进气谐振腔降低进气噪声。综合运用上述进、排气系统改进措施将所研究的轿车车外加速噪声降低到74dB(A)以下,满足了国家第二阶段噪声强制法规的要求。
|
| 关 键 词： | 进气系统 排气系统 消声器 车外加速噪声 |
| 收稿时间： | 2005-04-05 |
| 修稿时间： | 2005-04-052005-06-10 |
A Study on Reducing Vehicle Passing-by Noise by Improving the Intake and Exhaust Systems |
| |
| Ge Yunshan,Zhang Hongbo,Song Yanrong,Tan Jianwei,Han Xiukun,Gao Liping.A Study on Reducing Vehicle Passing-by Noise by Improving the Intake and Exhaust Systems[J].Automotive Engineering,2006,28(4):376-378. |
| |
| Authors: | Ge Yunshan Zhang Hongbo Song Yanrong Tan Jianwei Han Xiukun Gao Liping |
| |
| Institution: | 1. School of Mechanical and Vehicular Engineering, Beijing Institute of Technology; 2. Pan Asia Automotive Technical Center, Shanghai 201201 |
| |
| Abstract: | A coupled model of engine and muffler is built by using GT-POWER.Based on the frequency characteristics of intake and exhaust systems,a scheme for improving the design of muffler is proposed.Utilizing CFD technique and SYSNOISE software,the regenerated gas noise inside the muffler is effectively suppressed and an intake resonant chamber is designed to reduce the induction noise.All above measures decrease effectively the passing-by noise of vehicle,meeting the requirements of national regulations. |
| |
| Keywords: | Intake system Exhaust system Muffler Vehicle passing-by noise |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
