汽車排氣系統(tǒng)噪聲性能分析與研究

打開文本圖片集
【摘 要】排氣系統(tǒng)噪聲直接關(guān)聯(lián)整車NVH性能,在產(chǎn)品開發(fā)過程中需要重點研究與設(shè)計。文章介紹排氣系統(tǒng)的基本功能和結(jié)構(gòu),對排氣噪聲的表現(xiàn)形式和產(chǎn)生機理進行詳細說明。結(jié)合試驗數(shù)據(jù),重點分析排氣噪聲的關(guān)鍵影響因素,為排氣系統(tǒng)的設(shè)計開發(fā)提供技術(shù)參考。
【關(guān)鍵詞】排氣系統(tǒng);噪聲;NVH
中圖分類號:U464.134 文獻標識碼:A 文章編號:1003-8639(2025)02-0087-03
Noise Performance Analysis and Research of Automobile Exhaust System
DENG Houke,YANG Guang,REN Xiaolong
(Anhui Jianghuai Automobile Co.,Ltd.,Heifei 230031,China)
【Abstract】Exhaust system noise is directly related to vehicle NVH performance,which needs to be studied and designed in the process of product development. This paper introduces the basic function and structure of the exhaust system,and explains in detail the form and mechanism of exhaust noise. Based on the test data,the key influencing factors of exhaust noise are analyzed,so as to provide technical reference for the design and development of exhaust system.
【Key words】exhaust system;noise;NVH
1 排氣系統(tǒng)功能結(jié)構(gòu)
排氣系統(tǒng)是在發(fā)動機工作時,不斷地將燃燒室的廢氣排放到大氣中,保證發(fā)動機連續(xù)運轉(zhuǎn)的重要機構(gòu)。(剩余3490字)