摘要
为了解空调转子压缩机摩擦噪声的产生机理,开展油润滑条件下压缩机各个摩擦副摩擦系数的试验研究。采用销-盘试验机测量不同转速下各个摩擦副的摩擦系数。建立全尺寸转子压缩机摩擦噪声的有限元模型,运用复特征值分析方法研究压缩机摩擦噪声的产生机理。结果表明:在一定相对转速范围内,摩擦系数随相对滑动速度增大而减小,即存在摩擦系数相对于滑动速度曲线显现负斜率特性,这个负斜率特性可能是引起压缩机摩擦噪声一个原因。
In order to understand the generation mechanism of the friction-induced noise of rotary compressors, the friction characteristics of friction pairs of rotary compressors were studied experimentally under oil lubrication condition.The friction coefficient of each friction pair of a rotary compressor for different relative speeds was measured under the condition of oil lubrication using a pin-on-disc tester. A full-size finite element model of the friction-induced noise of the rotary compressor was established. The complex eigenvalue extraction method was used to study the generation mechanism of the squeal of the rotary compressor. The results show that the friction coefficient decreases with the increase of the relative sliding speed in a certain range. Namely, there exists a negative slope between the friction coefficient and the relative sliding speed. This negative friction-velocity slope is probably responsible for the formation of the friction-induced noise of rotary compressors.
作者
张荣婷
张金圈
宋启峰
陈光雄
ZHANG Rongting;ZHANG Jinquan;SONG Qifeng;CHEN Guangxiong(State Key Laboratory of Air-conditioning Equipment and System Energy Conservation,Zhuhai 519070,Guangdong,China;GREE Electric Appliances,Inc.of Zhuhai,Zhuhai 519070,Guangdong,China;School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China)
出处
《噪声与振动控制》
CSCD
北大核心
2022年第2期29-33,66,共6页
Noise and Vibration Control
基金
空调设备及系统运行节能国家重点实验室开发资金资助项目(ACSKL2019KT01)
国家自然科学基金资助项目(51775461)。
关键词
声学
转子压缩机
摩擦系数
摩擦系数负斜率
摩擦噪声
复特征值分析
acoustics
rotary compressor
friction coefficient
negative friction-speed slope
friction-induced noise
complex eigenvalue analysis
