汽车空调离心风机的声场数值分析与降噪研究
详细信息 查看官网全文
- 英文论文题名：Numerical Analysis of Acoustic Field and Noise Reduction of Centrifugal Fan for Automotive Air Conditioning
- 论文作者：杨慰 ; 朱用国 ; 李阳 ; 孙哲 ; 郝奕
- 英文论文作者：Yang Wei ; Zhu Yongguo ; Li Yang ; Sun Zhe ; Hao Yi ; Dong feng Commercial Vehicle Technical Center
- 年：2016
- 作者机构：东风商用车技术中心;
- 论文关键词：离心风机 ; 计算流体动力学 ; 降噪 ; 动网格技术
- 英文论文关键词：centrifugal fan ; computational fluid dynamics(CFD) ; noise reduction ; dynamic mesh technique
- 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：U463.851
- 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：1276k
- 原文格式：O
- 会议级别：全国
摘要
介绍了汽车空调离心风机的噪声产生机理与特性。为降低风机气动噪声峰值,对叶片沿叶轮的周向分布采取了变间距优化设计。在计算流体动力学软件中建立了风机内部流场和声学模型,利用该软件的动网格技术对叶片旋转区域的气体流动进行等效加载,仿真计算得到了场点的频域噪声。结果表明,变间距周向分布叶片的设计对降低风机的离散噪声峰值有明显效果。
Noise generation and characteristics of centrifugal fan for automotive air conditioning was summarized.A centrifugal fan with non- isometric blade impeller was designed to reduce the noise peak excited by periodical sweep of blades.Flow fluid and acoustic field model of centrifugal fan was established,in which the flow fluid adjacent to moving blades was loaded with a particular rotational speed,with dynamic mesh technique applied.By the simulation the noise in frequency domain indicated that the design of non- isometric blade impeller worked well in noise peak reduction of centrifugal fan.
Noise generation and characteristics of centrifugal fan for automotive air conditioning was summarized.A centrifugal fan with non- isometric blade impeller was designed to reduce the noise peak excited by periodical sweep of blades.Flow fluid and acoustic field model of centrifugal fan was established,in which the flow fluid adjacent to moving blades was loaded with a particular rotational speed,with dynamic mesh technique applied.By the simulation the noise in frequency domain indicated that the design of non- isometric blade impeller worked well in noise peak reduction of centrifugal fan.
引文
[1]刘晓良,祁大同,马健峰,等.改变蜗壳宽度对离心风机气动噪声影响的数值计算与试验研究[J].西安交通大学学报,2008,42(11):1429-1434.
[2]徐辰,杨爱玲,毛义军.离心风机噪声预测方法的进展与分析[J].流体机械,2011,39(7):35-40.
[3]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,2006:182-184.
[4]康强,左曙光,韩惠君.汽车空调系统离心风机气动噪声数值计算[J].江苏大学学报(自然科学版),2013,34(1):1-6.
[5]Ballesteros-Tajadura R,Velarde-Suarez S,Hurtado-Cruz J P.Noise prediction of a centrifugal fan;numerical resuits and experimental validation[J].Journal of Fluids Engineering,2008,130:91102-1-12.
[6]Fedala D,Kouidri S,Rey R.Numerical study of time domain analogy applied to noise preidiction from rotating blades[J].Journal of Sound and Vibration,2009,321(3/4/5):662-679.
[7]马健峰,袁民建,刘秋洪,等.不等距叶片离心风机气动噪声的数值与试验研究[J].噪声与振动控制,2008(3):100-103.
[8]孙晓峰.不等节距叶片风机气动声学特性的研究[J].北京航空学院学报,1986(4):137-145.
[2]徐辰,杨爱玲,毛义军.离心风机噪声预测方法的进展与分析[J].流体机械,2011,39(7):35-40.
[3]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,2006:182-184.
[4]康强,左曙光,韩惠君.汽车空调系统离心风机气动噪声数值计算[J].江苏大学学报(自然科学版),2013,34(1):1-6.
[5]Ballesteros-Tajadura R,Velarde-Suarez S,Hurtado-Cruz J P.Noise prediction of a centrifugal fan;numerical resuits and experimental validation[J].Journal of Fluids Engineering,2008,130:91102-1-12.
[6]Fedala D,Kouidri S,Rey R.Numerical study of time domain analogy applied to noise preidiction from rotating blades[J].Journal of Sound and Vibration,2009,321(3/4/5):662-679.
[7]马健峰,袁民建,刘秋洪,等.不等距叶片离心风机气动噪声的数值与试验研究[J].噪声与振动控制,2008(3):100-103.
[8]孙晓峰.不等节距叶片风机气动声学特性的研究[J].北京航空学院学报,1986(4):137-145.