车载空调制冷系统的噪声问题试验研究
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- 英文论文题名：Experimental Study on Interior Noise Improvement of Automotive Air Conditioning Refrigerating System
- 论文作者：罗挺 ; 邓峰 ; 宋飞 ; 王成 ; 刘浩 ; Zheng Qingqing
- 英文论文作者：Luo Ting ; Deng Feng ; Song Fei ; Wang Cheng ; Liu Hao ; Zheng Qingqing ; Dongfeng motor corporation technology center ; National Automobile Quality Supervision And Test Center(XiangYang)
- 年：2016
- 作者机构：东风汽车公司技术中心NVH研究所;国家汽车质量监督检验中心(襄阳);
- 论文关键词：压缩机 ; 压缩机支架 ; 低压管
- 英文论文关键词：compressor ; bracket ; low pressure pipe
- 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：1555k
- 原文格式：O
- 会议级别：全国
摘要
本文对空调制冷系统引起的车内噪声问题的产生机理作了梳理,明确了压缩机本体的噪声与振动是问题的主要激励源,压缩机支架、高低压管路是压缩机振动传递到车身的主要路径。针对某车型怠速开空调后,车内500Hz噪声偏大的问题,经过试验分析,确定该问题由制冷系统振动引起。为改善车内噪声,分别对压缩机振动与管路振动传递做了优化。试验结果表明,优化压缩机的振动模态,可使车内500Hz噪声下降5dB(A);对低压管路优化,降低压缩机的振动传递,也可使车内500Hz处噪声降低7dB(A),最终达到了主观评价满意的水平。
The mechanism of interior noise caused by air conditioning refrigeration systemis studied,it is clear that the noise and vibration of the compressorare the main exciting sources,that the compressor bracket and pipes are the main transfer paths.The interior noise of one car when AC ON is significant,especially in 500 Hz,and it is considered to be caused by vibration transfer after experimental analysis.In order to decrease interior noise,we do a lot of work in improving the compressor vibration and pipe vibration transfer.The results show that the interior noise decrease 5dB(A) in 500 Hz by improving compressor vibration modal,or7 dB(A) in500 Hz by improving low pressure pipe vibration transfer.At last,the interior noise is considered to be OK.
The mechanism of interior noise caused by air conditioning refrigeration systemis studied,it is clear that the noise and vibration of the compressorare the main exciting sources,that the compressor bracket and pipes are the main transfer paths.The interior noise of one car when AC ON is significant,especially in 500 Hz,and it is considered to be caused by vibration transfer after experimental analysis.In order to decrease interior noise,we do a lot of work in improving the compressor vibration and pipe vibration transfer.The results show that the interior noise decrease 5dB(A) in 500 Hz by improving compressor vibration modal,or7 dB(A) in500 Hz by improving low pressure pipe vibration transfer.At last,the interior noise is considered to be OK.
引文
[1]刘显臣.汽车NVH综合技术[M].北京:机械工业出版社,2014:48-50,312-330.
[2]Prakash T.Thawani.A/C Moan-its Diagnostics and Control[J].2009 SAE International,2009:2063-2064.
[2]Prakash T.Thawani.A/C Moan-its Diagnostics and Control[J].2009 SAE International,2009:2063-2064.