涡轮增压器泄气噪声的优化  

Optimization of Turbocharger Pressure Relief Noise

作　　者：肖芝 刘智湘 凌旭 Xiao Zhi;Liu Zhi-xiang;Ling Xu(Hunan Chemical Vocational Technology College,Zhuzhou 412000,China)

机构地区：[1]湖南化工职业技术学院,湖南株洲412000

出　　处：《内燃机与配件》2023年第8期19-21,共3页Internal Combustion Engine & Parts

基　　金：湖南省教育厅科学研究项目(名称:涡轮增压器消声器的设计与优化,编号:20C0681)。

摘　　要：针对某汽油发动机上出现的涡轮增压器泄气噪声,本文基于赫姆霍兹消声器原理,以多孔多腔消声器对泄气噪声进行优化的设计方案。设计过程中,运用声学有限元方法,对所设计的消声器进行声学性能仿真分析,计算出传递损失,并通过整车试验对多孔多腔消声器设计方案进行对比验证,试验结果表明该设计方案对泄气噪声可取得明显减弱效果,满足整车NVH性能要求,为涡轮增压器泄气噪声的治理提供理论与实践参考。Based on the principle of Helmholtz muffler,a multi-cavity and multi-hole muffler is designed to optimize the turbocharger pressure relief noise.In the design process,the acoustic finite element method is used to simulate and analyze the acoustic performance of the designed muffler,and the transmission loss is calculated,the test results show that the multi-cavity and multi-hole muffler can significantly reduce the pressure relief noise and get the performance requirements of vehicle NVH,which provides a theoretical and practical reference for the treatment of turbocharger pressure relief noise.

关 键 词：泄气噪声 消声器 声学有限元 传递损失 

分 类 号：TK413.5[动力工程及工程热物理—动力机械及工程]