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汽车空调压缩机齿轮故障振动噪声分析方法

发表时间:2016-07-31  浏览量:1998  下载量:532
全部作者: 涂志健,陆益民,徐周亮,徐傲
作者单位: 合肥工业大学机械与汽车工程学院
摘 要: 压缩机是汽车空调系统振动噪声的主要激励源,直接影响汽车车内的噪声、振动和舒适性(noise,vibration,harshness,NVH)指标。为研究和探讨某型摆盘式定排量汽车空调压缩机噪声过大的问题,采用在半消声室中对压缩机进行噪声和振动信号采集的试验,压缩机内部机构的动力学分析和采集数据的振动、噪声信号频谱分析,发现异常振动是由Gleason弧形齿轮制造缺陷导致。试验验证表明,齿轮的制造精度是压缩机噪声的主要原因,精度达不到要求的齿轮会造成齿轮磨损,影响齿轮运转的啮合平稳性,进而影响活塞的振动噪声,并随着转速的增加而增大。
关 键 词: 机械动力学与振动;摆盘式压缩机;齿轮故障;频谱分析
Title: Analysis method of vibration and noise for vehicle air condition compressor gear fault
Author: TU Zhijian, LU Yimin, XU Zhouliang, XU Ao
Organization: School of Mechanical and Automotive Engineering, Hefei University of Technology
Abstract: Compressor is the main vibration and noise source of the car air conditioning system, which directly affects the vehicle interior noise, vibration, harshness (NVH) indexes. In order to research and discuss the problem that a certain type of vehicle air condition compressor with wobble-plate fixed displacement noise is too high, we adopted experiment of gathering the noise and vibration data in a semi-anechoic room. Through the dynamics analysis of compressor internal institutions and spectrum analysis of noise and vibration signal, we found that the unusual vibration was caused by the manufacturing defect of Gleason Arc gear. Through the experiment, we verified that the gear with manufacturing defect is the main problem causing compressor’s noise and vibration. The gear whose accuracy cannot meet the requirement will cause gear damage which will affect gear meshing stationarity of operation, thus affect the vibration and noise of the piston. And the noise will increase with the elevation of rotational speed.
Key words: mechanical dynamics and vibration; wobble-plate compressor; gear fault; spectrum analysis
发表期数: 2016年7月第14期
引用格式: 涂志健,陆益民,徐周亮,等. 汽车空调压缩机齿轮故障振动噪声分析方法[J]. 中国科技论文在线精品论文,2016,9(14):1402-1407.
 
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