汽车空调低压管路流固耦合振动特性分析

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摘要汽车空调管路的振动与噪声直接影响车内舒适性。论文基于计算流体力学和结构有限元的流固耦合方法分析了某型汽车空调低压管路系统在制冷剂作用下的振动特性。建立了低压管路系统的有限元模型，进行了空管模态分析和流体作用下的预应力模态分析，针对橡胶管结构采用了分层建模方法，进行了模态试验验证。使用流体动力学方法分析了制冷剂的流场特性，获取管壁压力，进行流固耦合作用下的管路振动特性分析，分析了流体脉动频率和橡胶管硬度对流致振动特性的影响。结果表明：空调低压管路的模态表现为低频振动的特点，且模态振型主要体现在橡胶管上；考虑制冷剂与管路的流固耦合作用后，模态固有频率增大，最大增加43.83%；靠近压缩机的橡胶管在脉动压力激励下表现出周期性的振动，远离压缩机的橡胶管振动逐渐衰减；管道应力与压缩机工作频率成正相关关系，管道振动位移随着橡胶管硬度增大而减小。

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	赵勤1
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	黄云伟1
	徐中明1
	贺岩松1
	张志飞1

关键词 ：空调低压管路, 模态分析, 流固耦合, 振动

Abstract：The noise and vibration of automotive air conditioning pipeline directly affect the interior comfort. Based on the fluid structure interaction method of computational fluid dynamics and structural finite element method, the vibration of low pressure pipeline system of an automotive air conditioner caused by refrigerant flow was analyzed in this paper. The finite element model of low pressure pipeline system was established, and the modal analysis of empty pipe and pre-stressed modal analysis under fluid action were carried out, the layered modeling method was adopted for the structure of the rubber hose, and the modal test verification was carried out. The fluid dynamics method was used to analyze the flow field characteristics of refrigerant, and the pipe wall pressure was obtained to analyze the pipeline vibration characteristics under the fluid structure interaction, the influence of fluid pulsation frequency and rubber hose hardness on convection-induced vibration characteristics was analyzed. The results show that: the modal of air conditioning low pressure pipeline is characterized by low-frequency vibration, and the modal vibration mode is mainly reflected on the soft rubber hose; after considering the fluid structure interaction between refrigerant and pipeline, the natural frequency increases, with maximum growth rate 43.83%; the rubber hose near the compressor exhibits periodic vibration under the excitation of pulsating pressure, while the vibration of the rubber hose far away from the compressor attenuates gradually; the pipeline stress is positively correlated with the compressor working frequency, and the vibration displacement of the pipeline decreases with the increase of the hardness of the rubber hose.

Key words： air conditioning low pressure pipeline modal analysis fluid structure interaction vibration

收稿日期: 2021-01-18 出版日期: 2022-05-28

引用本文:

赵勤1,2，黄云伟1，徐中明1，贺岩松1，张志飞1. 汽车空调低压管路流固耦合振动特性分析[J]. 振动与冲击, 2022, 41(10): 244-251.
ZHAO Qin1,2， HUANG Yunwei1， XU Zhongming1， HE Yansong1， ZHANG Zhifei1. Fluid structure interaction vibration characteristics of the low pressure pipeline of an automotive air conditioning system. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(10): 244-251.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2022/V41/I10/244

[1] 付永领，荆慧强. 弯管转角对液压管道振动特性影响分析[J]. 振动与冲击，2013, 32(13): 165-169.
FU Yong-ling, JING Hui-qiang. Elbow angle effect on hydraulic pipeline vibration characteristics [J]. Journal of Vibration and Shock, 2013, 32(13) : 165-169.
[2] 谭博欢，舒宝，李冬等. 流体引起的空调管路振动分析与实验研究[J]. 振动与冲击，2017, 36(01): 261-267.
TAN Bo-huan, SHU Bao, LI Dong, et al. Analysis and test for fluid flow induced vibration of air conditioner pipes[J]. Journal of Vibration and Shock, 2017, 36(01): 261-267.
[3] Okutsu N. Study on the vibration and stress of copper tubes in refrigerators and air conditioners[J]. Trans. Jpn. Soc.Mech. Eng, 1997, 63(611): 2201-2205.
[4] Loh S K, Faris W F, Hamdi M, et al. Vibrational characteristics of piping system in air conditioning outdoor unit[J]. Science China-technological Sciences, 2011, 54(5): 1154-1168.
[5] Li S Y, Guo J, Zhang X W, et al. Optimization for Pipeline System of Air-Conditioner Based on Finite Element Simulation[J]. Applied Mechanics and Materials, 2011: 2151-2155.
[6] 张晓伟，李苏洋. 空调管路系统的振动分析[J]. 振动.测试与诊断，2012, 32(S1): 120-122+154.
ZHANG Xiao-wei, LI Su-yang.Vibration Analysis of AirCondition Pipes[J]. Journal of Vibration, Measurement&Diagnosis, 2012, 32(S1): 120-122+154.
[7] 张敬东，起雪梅，杜仕武. 空调管路振动性能分析及优化设计[J]. 重庆邮电大学学报(自然科学版)，2013, 25(05): 705-710.
ZHANG Jin-dong, QI Xue-mei, DU Shi-wu.Vibration Performance Analysis and Optimization Design for Air-conditioner Pipeline[J]. Journal of Chongqing University of Posts and Telecommunication(Nature Science Edition), 2013, 25(05): 705-710.
[8] Wijaya C, Yoon M C, Kim B T. Numerical investigation on the dynamic characteristics of an automotive A/C hose[J]. International Journal of Automotive Technology, 2012, 13(3): 433-440.
[9] Han S R, Cho J R. Investigation of vibration damping characteristics of automotive air conditioning pipeline systems[J]. International Journal of Precision Engineering and Manufacturing, 2016, 17(2): 209-215.
[10] Sreejith B, Jayaraj K, Ganesan N, et al.Finite element analysis of fluid-structure interaction in pipeline systems[J]. Nuclear Engineering and Design, 2004, 227(3): 313-322.
[11] 李云东，杨翊仁，文华斌. 非线性弹性地基上悬臂管道的参数振动[J]. 振动与冲击，2016, 35(24): 14-18+38.
LI Yun-dong, YANG Yi-ren, WEN Huabin. Parametric vibration of a cantilevered pipe conveyingpulsating fluid on a nonlinear elastic foundation[J]. Journal of Vibration and Shock, 2016, 35(24): 14-18+38.
[12] 朱晨光，徐思朋. 功能梯度输流管的非线性自由振动分析[J]. 振动与冲击，2018, 37(14): 195-201+247.
ZHU Chen-guang, XU Si-peng. Nonlinear free vibration analysis of FG tubes conveying fluid[J]. Journal of Vibration and Shock, 2018, 37(14): 195-201+247.
[13] Lee S, Ryu S, Jeong W, et al. Vibration analysis of compressor piping system with fluid pulsation[J]. Journal of Mechanical Science and Technology, 2012, 26(12): 3903-3909.
[14] 王乙坤，倪樵，王琳，严浩，罗杨阳. 具有松动约束悬臂输液管的三维非线性振动[J]. 科学通报，2017, 62(36): 4270-4277.
WANG Yi-kun, NI Qiao, WANG Lin, YAN Hao, LUO Yang-yang. Three-dimensional nonlinear dynamics of a cantilevered pipe conveying fluid subjected to loose constraints[J]. Chinese Science Bulletin, 2017, 62(36): 4270-4277.
[15] 严浩，熊夫睿，姜乃斌，代胡亮，王琳，黄绮珊，倪樵. 含非线性能量汇的简支输液管非线性振动控制研究[J]. 固体力学学报，2019, 40(02): 127-136.
YAN Hao, XIONG Fu-rui, JIANG Nai-bin, DAI Hu-liang, WANG Lin, HUANG Qi-shan, NI Qiao. Nonlinear Vibration Control of a Simply-supported Pipe Conveying Fluid with Nonlinear Energy Sink[J], Chinese Journal of Solid Mechanics, 2019, 40(02): 127-136.
[16] 周坤，倪樵，代胡亮，王琳，熊夫睿，姜乃斌. 周期性输流管道的非线性动力学特性研究[J]. 振动与冲击，2020, 39(10): 75-80.
ZHOU Kun, NI Qiao, DAI Hu-liang, WANG Lin, XIONG Fu-rui, JIANG Nai-jiang. Analysis of nonlinear dynamic characteristics of periodic pipe conveying fluid[J]. Journal of Vibration and Shock, 2020, 39(10): 75-80
[17] Wu J, Li C, Zheng S, et al. Study on Fluid-Structure Coupling Vibration of Compressor Pipeline[J]. Shock and Vibration, 2019: 1-12.
[18] 赵江，俞建峰，楼琦. 基于流固耦合的T型管振动特性分析[J]. 振动与冲击，2019, 38(22): 117-123+170.
ZHAO Jiang, YU Jian-feng, LOU Qi. Modal analysis of T-shaped pipes based on a fluid-solid interaction model[J]. Journal of Vibration and Shock, 2019, 38(22): 117-123+170.
[19] 刘桂祥，张鲲，林松. 基于CFD和结构有限元双向耦合方法的载流管路流致振动特性研究[J]. 核动力工程，2016, 37(S2): 24-27.
LIU Gui-xiang, ZHANG Kun, LIN Song. Study on Flow-Induced Vibration for Pipe Conveying Fluid Based on Two Way Coupling Method with CFD and FEM[J]. Nuclear Power Engineering, 2016, 37(S2): 24-27.
[20] 许伟伟，武博，吴大转等. 非稳定流体与U形管路耦合振动特性研究[J]. 高校化学工程学报，2012, 26(05): 770-774.
XU Wei-wei, WU Bo, WU Da-zhuan et al. Vibration Investigation of U Pipe Interacted with Unsteady Fluid[J]. Journal of Chemical Engineering of Chinese Universities, 2016, 37(S2): 24-27