空调配管理论模态分析与试验研究

谭博欢; 李越峰; 李冬; 柳小勤; 伍星; 邱名友; 舒宝

doi:10.13433/j.cnki.1003-8728.2016.0808

空调配管理论模态分析与试验研究

doi: 10.13433/j.cnki.1003-8728.2016.0808

1.
昆明理工大学机电工程学院振动噪声监测与控制研究所, 昆明 650500;
2.
四川长虹空调有限公司, 四川绵阳 621000

基金项目:

国家自然科学基金地区基金项目（51465022，51264018）资助

详细信息

作者简介:
谭博欢(1989-),硕士,研究方向为振动控制及分析,Tbohuan@126.com

通讯作者:
柳小勤(联系人),副教授,博士,liuxqsmile@gmail.com

计量
- 文章访问数: 216
- HTML全文浏览量: 39
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2014-06-10
- 刊出日期: 2016-08-05

Finite Element and Experimental Modal Analysis on Connecting Pipes of Air Conditioner

1.
Institute of Monitoring & Control of Vibration & Noise, Kunming University of Science and Technology, Kunming 650500, China;
2.
Sichuan Changhong Air Conditioning Co., Ltd., Sichuan Mianyang 621000, China

摘要

摘要: 以某款空调外机配管为对象，结合理论模态计算方法和试验模态分析方法对配管进行动态特性研究。首先对空调外机配管结构建立动力学模型并用有限元分析软件对其进行理论模态计算，得出前12阶固有频率和振型。随后利用单点激励单点响应的方式对配管进行了试验模态分析，得到了系统在实际约束下前12阶的模态参数。研究表明：试验模态分析结果和有限元分析吻合，验证了理论模态的正确性，为进一步研究提供了可信的条件。同时，找出了配管额定工作时振动过大的原因，为减振措施和结构改进提供了可靠的依据。
- 空调 /
- 管道振动 /
- 模态分析 /
- 动态特性
Abstract: The pipes connecting compressor and heat exchange coils plays an important role in the noise and vibration performance of air conditioner. In this paper, the dynamic characteristics of the pipes are analyzed with both FEM (finite element method) and experimental method. The first twelve natural frequencies and mode shapes were obtained from dynamic analysis of FEM model. Then, the experimental modal analysis was performed on the real pipes with hammer excitation method. The differences between the FEM analysis and experimental results were compared, and solutions to suppress pipe vibration has been proposed. The study shows that pipe vibration dynamic characteristics, which can be efficiently verified by experimental modal analysis, provides reliable theoretical basis for controlling vibration and noise of air-conditioner pipes.
- air conditioner /
- pipe vibration /
- modal analysis /
- dynamic characteristics

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参考文献(15)

[1]	Ashley H,Haviland G.Bending vibrations of a pipe line containing flowing fluid[J].Journal of Applied Mechanics,1950,17:229-232
[2]	Paidoussis M P.Flow-induced instabilities of cylindrical structures[J].Applied Mechanics Reviews,1987,40(2):163-175
[3]	Paidoussis M P,Li G X.Pipes conveying fluid:a model dynamical problem[J].Journal of Fluid and Structures,1993,7(2):137-204
[4]	Paidoussis M P.Fluid-structure interactions:Vol 1:slender structures and axial flow[M].San Diego,CA:Academic Press Inc,1998
[5]	Hairahayashi,Kazuhiro S.Measurement of vibration energy-flow in piping system of air-conditioner[R].Technical Review-Mitsubishi Heavy Industries,1988
[6]	Okutsu N.Study on the vibration and stress of copper tubes in refrigerators and air conditioners,Nippon Kikai Gakkai Ronbunshu[J].C Hen Transactions of the Japan Society of Mechanical Engineers,Part C,1997,63(611):2201-2205
[7]	薛玮伟飞,张智,陈进,等.空调配管模态仿真分析与实验研究[J].机械科学与技术,2010,29(6):822-825 Xue W F,Zhang Z,Chen J,et al.A modal simulation and experimental study of an air conditioner pipe[J].Mechanical Science and Technology for Aerospace Engineering,2010,29(6):822-825(in Chinese)
[8]	薛玮伟飞,张智,陈进,等.空调配管空间结构的动态仿真与优化[J].机械强度,2011,33(2):170-174 Xue W F,Zhang Z,Chen J,et al.Dynamical simulation and optimum design used for air conditioner pipe[J].Journal of Mechanical Strength,2011,33(2):170-174(in Chinese)
[9]	苟兵旺,刘永寿,何洁,等.输流管道在支承激励下的动态特性分析[J].机械科学与技术,2011,30(4):556-559 Gou B W,Liu Y S,He J,et al.Vibration characteristic analysis of a pipe for conveying fluid under harmonic excitation[J].Mechanical Science and Technology for Aerospace Engineering,2011,30(4):556-559(in Chinese)
[10]	周云,易伟健.用Poly MAX方法进行弹性地基板的实验模态分析[J].振动与冲击,2007,26(7):139-144 Zhou Y,Yi W J.Experimental modal analysis of a slab on elastic foundation by PolyMAX method[J].Journal of Vibration and Shock,2007,26(7):139-144(in Chinese)
[11]	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 Y L,Jing H Q.Elbow angle effect on hydraulic pipeline vibration characteristics[J].Journal of Vibration and Shock,2013,32(13):165-169(in Chinese)
[12]	巨丽,李永堂.对击式液压锤理论与试验模态分析[J].机械工程学报,2009,45(1):273-276,281 Ju L,Li Y T.Theoretical and testing modal analysis of counterblow hydraulic hammer[J].Journal of Mechanical Engineering,2009,45(1):273-276,281(in Chinese)
[13]	Schrage D S.Thermal modeling of NI-MH battery cells operating under transient orbital conditions[C]//Proceedings of the 26th Intersociety Energy Conversion Engineering Conference,Boston,MA:American Nuclear Society,1991:21-44
[14]	Peeters B,Van Der Auweraer H,Guillaume P,et al.The PolyMAX frequency-domain method:a new standard for modal parameter estimation?[J].Shock and Vibration,2004,11(3-4):395-409
[15]	王爱玉,潘宏侠.基于LMS系统的某型高射机枪模态分析[J].太原理工大学学报,2013,44(1):55-58 Wang A Y,Pan H X.Modal analysis of AAMG based on LMS system[J].Journal of Taiyuan University of Technology,2013,44(1):55-58(in Chinese)