[1]刘 辉,罗伟宾,赵克刚.中高频振动引起车内噪声分析研究[J].机械与电子,2015,(06):20-22.
　LIU Hui,LUO Weibin,ZHAO Kegang.Study and Analysis of the Automotive Interior Noise Caused by Medium andHigh Frequency Vibration[J].Machinery & Electronics,2015,(06):20-22.
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中高频振动引起车内噪声分析研究
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《机械与电子》[ISSN:1001-2257/CN:52-1052/TH]

卷:
期数:
2015年06期
页码:
20-22
栏目:
设计与研究
出版日期:
2015-06-26

文章信息/Info

Title:
Study and Analysis of the Automotive Interior Noise Caused by Medium and High Frequency Vibration
文章编号:
1001-2257(2015)06-0020-03
作者:
刘 辉; 罗伟宾; 赵克刚
(华南理工大学广东省汽车工程重点实验室,广东 广州 510640)
Author(s):
LIU Hui; LUO Weibin; ZHAO Kegang
(Guangdong Key Laboratory of Automobile Engineering,South China University of Technology,Guangzhou 510640,China)
关键词:
车内噪声;  输油管道;  横摆;  降噪
Keywords:
interior noise;  pipeline;  transverse swing;  noise reduction
分类号:
U46
文献标志码:
A
摘要:
为解决某车型车内噪声问题,在发动机振动引起车内噪声问题分析方法的基础上,确定横摆中高频振动是引起车内噪声的主要原因,并提出解决方案。在发动机怠速状态下测量输油管道的振动状态,根据汽车噪声、振动和声振粗糙度基本理论,通过模态分析和频谱分析,得出输油管道横摆中高频振动引起的车身底板振动向车内辐射噪声。采用加装胶垫的方法降噪,改进后的实车试验结果表明,车内声压峰值从32 dB下降到24 dB,横摆中高频振动得到有效控制。
Abstract:
In order to solve the interior noise problem of a certain vehicle type and based on analytic techniques identifying noise problems caused by engine vibrations, a transverse swing having medium and high frequencies is established to be the primary cause; solutions to the problem are proposed. The transverse swing of the pipeline having medium and high frequencies causes vibrations of the baseplate, which radiates noise to the interior according to the fundamental theory of the vehicle NVH(noise, vibration and harshness). This is concluded as a result of modal analysis and frequency spectrum analysis, wherein the vibration state of the pipeline was measured while the engine is idling. Actual vehicle tests were conducted wherein a rubber cushion was attached for noise reduction. The test results using this improvement showed that the peak value of the automotive interior sound pressure declined from 32 dB to 24 dB, and the transverse swing having medium and high frequencies was effectively controlled.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-02-05
作者简介:刘 辉(1988-),男,河南信阳人,硕士研究生,研究方向为汽车系统动力学及电子控制; 罗伟宾(1976-),男,广东高州人,硕士研究生,研究方向为车辆振动噪声测控技术及故障诊断; 赵克刚(1977-),男,上海人,副教授,工学博士,研究方向为电动汽车、汽车传动。
更新日期/Last Update: 2015-06-26