基于模态分析技术的汽车道路噪声优化
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- 英文论文题名：Optimization of Road Noise Based on Modal Analysis Technique
- 论文作者：陆兵 ; 黄文兵
- 英文论文作者：Lu Bing ; Huang Wenbing ; Anhui Jianghuai Automobile Co.Ltd Technology Center NVH Test Development Department
- 年：2016
- 作者机构：安徽江淮汽车股份有限公司技术中心NVH试验开发部;
- 论文关键词：道路噪声 ; 声腔模态 ; 共鸣音 ; 动力吸振器
- 英文论文关键词：road noise ; modal tunes ; resonance noise ; dynamic vibration absorber
- 会议召开时间：2016-10-26
- 会议录名称：2016中国汽车工程学会年会论文集
- 英文会议录名称：Proceedings of 2016 SAE-China Congress
- 语种：中文
- 分类号：U461.4;U491.91
- 学会代码：QCGC
- 会议名称：2016中国汽车工程学会年会暨展览会
- 会议地点：中国上海
- 主办单位：中国汽车工程学会
- 学会名称：中国汽车工程学会
- 页数：5
- 文件大小：2143k
- 原文格式：O
- 会议级别：全国
摘要
某车型在开发过程中,发现匀速行驶时车内出现明显的压迫耳膜的声音,严重影响人的听觉感受。通过主观评价及客观数据分析,得出该声音与车速、发动机转速无关,确认该声音为道路噪声,产生机理为轮胎振动激励被悬架系统与车身系统放大,通过地板扰动车内空气,使得声腔模态被激发,从而产生共鸣音,通过优化轮胎、悬架安装动力吸振器、声学包处理,成功解决该问题。同时本文对道路噪声分析流程进行了总结。
There was an obvious compressing noise at constant speed in the developing process of certain car,which affected customers' hearing sense seriously.According to subjective evaluation and objective analysis,we concluded that this noise had no correlation with vehicle speed and engine speed and could be recognized as road noise.The generating mechanism is that tire vibration is exaggerated by suspension and body,exciting air mode through floor turbulence,so the noise is produced.This issue was successfully solved through tire optimization,adding dynamic absorber on suspension and sound package treatment.Also we summarized the analysis procedure of road noise.
There was an obvious compressing noise at constant speed in the developing process of certain car,which affected customers' hearing sense seriously.According to subjective evaluation and objective analysis,we concluded that this noise had no correlation with vehicle speed and engine speed and could be recognized as road noise.The generating mechanism is that tire vibration is exaggerated by suspension and body,exciting air mode through floor turbulence,so the noise is produced.This issue was successfully solved through tire optimization,adding dynamic absorber on suspension and sound package treatment.Also we summarized the analysis procedure of road noise.
引文
[1]马大猷.噪声与振动控制工程手册[M].北京:机械工业出版社,2002:615-709.
[2]庞剑.汽车车身噪声与振动控制[M].北京:机械工业出版社,2015:615-709.
[3]庞剑,何华.汽车噪声与振动—理论与应用[M].北京:北京理工大学出版社,2006:266-284.
[2]庞剑.汽车车身噪声与振动控制[M].北京:机械工业出版社,2015:615-709.
[3]庞剑,何华.汽车噪声与振动—理论与应用[M].北京:北京理工大学出版社,2006:266-284.