中国机械工程2013，Vol.24Issue(1)：110-114,5.DOI:10.3969/j.issn.1004-132X.2013.01.022
摩托车排气净化消声器性能分析
Performance Analysis of Motorcycle Muffler with Catalyst
摘要
Abstract
The effect of catalytic converter structure on exhaust muffler was firstly researched. Sound transmits and loss were simulated by the establishment of new catalytic converter model which was full of inserted ducts, and transmission loss of the muffler and muffler with catalytic converter were analyzed and compared. Coupling simulation model of a motorcycle engine's working process and muffler with catalyst was established by GT— Power software,insertion loss and pressure loss of the exhaust muffler were obtained at different engine speeds. It is found that the muffling ability in middle and low—frequency is good,and in middle and high — frequency is bad. According to the calculation results, improvements on muffler structure are conducted. The simulation results show that the performance of the muffler at each speed of the engine is improved,and the insertion loss increases 3~ 5dB, the simulation results and the test results of this model tally well, and this design preferably meets the exhaust muffler performance requirements.关键词
消声器/传递损失/插入损失/压力损失/结构改进Key words
muffler/transmission loss/insertion loss/pressure loss/structure improvement分类
能源科技引用本文复制引用
黄泽好,杨超,黄一桃,吴晓宇..摩托车排气净化消声器性能分析[J].中国机械工程,2013,24(1):110-114,5.基金项目
重庆市教委科研基金资助项目(KJ090610) （KJ090610）
