乘用车空调制冷系统流激噪声控制及应用
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- 英文论文题名：Passenger Vehicle Flow-induced Noise of Air-conditioner Control and Application
- 论文作者：李伟 ; 张军 ; 赵勤 ; 李志刚
- 英文论文作者：Li Wei ; Zhang Jun ; Zhao Qin ; Li Zhigang ; Changan Auto R&D Center ; Changan Automobile Co. ; Ltd ; State Key Laboratory of Vehicle NVH and Safety Technology
- 年：2016
- 作者机构：长安汽车工程研究总院;汽车噪声振动和安全技术国家重点实验室;
- 论文关键词：空调系统 ; 流激噪声 ; 剪切层自持振荡 ; 声模态
- 英文论文关键词：air-conditioner ; flow-induced noise ; self-sustaining oscillation ; acoustic modal
- 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：868k
- 原文格式：O
- 会议级别：全国
摘要
汽车空调低压管路内的气态制冷剂高速流经管道内的陷落腔结构时,容易产生剪切层自持振荡现象,当自持振荡频率与此处管道的声模态耦合时即引起空调制冷系统异响。文章将这类异响问题定义为制冷剂的流激噪声。实际的工程案例证明,Rossiter(1964)的模态振荡半经验公式可以用来计算制冷剂流激噪声频率,以此指导空调管路结构设计,预估风险。
It is found that gaseous refrigerant flowing through the cavity structure caved in low-pressure pipe of air-conditioner,which is readily to cause a phenomenon called self- sustaining oscillation of shear layer and in consequence,an annoying noise will occur when that of the frequency is coupled with acoustic mode of pipe.In this paper,it is defined as a flow-induced noise of aeroacoustics.Furthermore,the frequency can be calculated by semi- empirical formula of Rossiter(1964),and demonstrated in an engineering case,in turn,employed to estimate the risk in the process of pipe structure design for avoiding the noise.
It is found that gaseous refrigerant flowing through the cavity structure caved in low-pressure pipe of air-conditioner,which is readily to cause a phenomenon called self- sustaining oscillation of shear layer and in consequence,an annoying noise will occur when that of the frequency is coupled with acoustic mode of pipe.In this paper,it is defined as a flow-induced noise of aeroacoustics.Furthermore,the frequency can be calculated by semi- empirical formula of Rossiter(1964),and demonstrated in an engineering case,in turn,employed to estimate the risk in the process of pipe structure design for avoiding the noise.
引文
[1]Thawani,P.,Liu,Z.,Venkatappa,S.,and Hsieh,H.,Automotive Air-conditioning Compressor Induced Moans[J].to be presented and published at Inter-Noise2006,3-6 Dec,2006,Honolulu,Hawaii,USA.
[2]Rodarte,E.,Singh,G.,Miller,N.,and Hrnjak,P.,Refrigerant Expansion Noise Propagation Through Downstream Tube Walls[J].SAE Paper 1999-01-1197,1999.
[3]Manfred Koberstein,Zhengyu Liu and Curtis Jones,and Suhas Venkatappa Flow-Induced Whistle in the Joint of Thermal Expansion Valve and Suction Tube in Automotive Refrigerant System[J].SAE Paper 2015-01-2275
[4]张楠,沈泓萃,姚惠之,等.空穴激流噪声的计算与试验研究[J].船舶力学,2008,12(5).
[5]李晓东,刘靖东,高军辉.空腔流激振荡发声的数值模拟研究[J].力学学报,2006,38(5).
[6]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.
[7]Rockwell,D.,Naudascher,E.,Review-self sustaining oscillation of flow past cavities[J].Fluids Engineering,Vol.[8]0,152-165,1978.
[8]Ziada,S.,A flow visualization study of flow-acoustic coupling at the mouth of a resonant side-branch Fluids and Structures,Vol.8,391-416,1994.
[9]Pollack,M.L.,Flow-induced tones in side-branch pipe resonators[J].Acoust.Soc.Am.,Vol.67,No.4,1153-1156,1980.
[10]廉乐明,谭羽非,朱家正,等.工程热力学[M].5版.北京:中国建筑工业出版社,2007.
[2]Rodarte,E.,Singh,G.,Miller,N.,and Hrnjak,P.,Refrigerant Expansion Noise Propagation Through Downstream Tube Walls[J].SAE Paper 1999-01-1197,1999.
[3]Manfred Koberstein,Zhengyu Liu and Curtis Jones,and Suhas Venkatappa Flow-Induced Whistle in the Joint of Thermal Expansion Valve and Suction Tube in Automotive Refrigerant System[J].SAE Paper 2015-01-2275
[4]张楠,沈泓萃,姚惠之,等.空穴激流噪声的计算与试验研究[J].船舶力学,2008,12(5).
[5]李晓东,刘靖东,高军辉.空腔流激振荡发声的数值模拟研究[J].力学学报,2006,38(5).
[6]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.
[7]Rockwell,D.,Naudascher,E.,Review-self sustaining oscillation of flow past cavities[J].Fluids Engineering,Vol.[8]0,152-165,1978.
[8]Ziada,S.,A flow visualization study of flow-acoustic coupling at the mouth of a resonant side-branch Fluids and Structures,Vol.8,391-416,1994.
[9]Pollack,M.L.,Flow-induced tones in side-branch pipe resonators[J].Acoust.Soc.Am.,Vol.67,No.4,1153-1156,1980.
[10]廉乐明,谭羽非,朱家正,等.工程热力学[M].5版.北京:中国建筑工业出版社,2007.