吸声材料在降低商用车通过噪声上的应用研究
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- 英文论文题名：Application Research of Absorption Material on Truck Pass-by Noise Reduction
- 论文作者：陈钊 ; 方维才 ; 曹源 ; 陈秀 ; 袁正萍
- 英文论文作者：Chen Zhao ; Fang Weicai ; Cao Yuan ; Chen Xiu ; Yuan Zhengping ; Dongfeng Commercial Vehicle Technical Center
- 年：2016
- 作者机构：东风商用车技术中心;
- 论文关键词：通过噪声 ; 商用车 ; 隔声罩 ; 吸声材料
- 英文论文关键词：pass-by noise ; truck ; acoustic enclosure ; absorption material
- 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：U467.493;U465
- 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：4
- 文件大小：1150k
- 原文格式：O
- 会议级别：全国
摘要
采用被动降噪方法,在某商用车上设计安装隔声罩来降低其通过噪声。对发动机附近的测点进行了频谱分析,运用阻抗管测量两种试样的吸声特性曲线,通过测点的声压频率曲线来确定材料及其厚度。通过新国标测试方法测试,某商用车在安装隔声罩后其通过噪声降低2dB。
This paper used passive noise reduction method by designing and installing acoustical enclosures to reduce the Truck pass- by noise.The frequency spectrum analysis was carried out on measuring point close to the engine.By the impedance tube measuring two samples the absorption curve the material and its thickness was determined by this curve.By new national standard method of testing,a truck pass-by noise reduces 2dB after installing acoustic enclosure.
This paper used passive noise reduction method by designing and installing acoustical enclosures to reduce the Truck pass- by noise.The frequency spectrum analysis was carried out on measuring point close to the engine.By the impedance tube measuring two samples the absorption curve the material and its thickness was determined by this curve.By new national standard method of testing,a truck pass-by noise reduces 2dB after installing acoustic enclosure.
引文
[1]庞剑,谌刚,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.
[2]陈钊.火箭整流罩内声场分析及降噪技术研究[D].哈尔滨:哈尔滨工业大学,2015.
[3]Kruger J,Quickert M.Determination of Acoustic Absorber Parameters in Impedance Tubes[J].Applied Acoustics,1997,50(1):79-89.
[4]袁健,贺才春,林胜.阻抗管中的隔声量测试方法[J].噪声与振动控制,2006(4):108-113.
[2]陈钊.火箭整流罩内声场分析及降噪技术研究[D].哈尔滨:哈尔滨工业大学,2015.
[3]Kruger J,Quickert M.Determination of Acoustic Absorber Parameters in Impedance Tubes[J].Applied Acoustics,1997,50(1):79-89.
[4]袁健,贺才春,林胜.阻抗管中的隔声量测试方法[J].噪声与振动控制,2006(4):108-113.