摘要
往复压缩机用气阀由于其高频开闭工作状态不可避免地受到强烈冲击,阀片常出现磨损、断裂等故障。以往复压缩机阀片断裂故障为研究对象,通过故障模拟试验获得在线监测数据,提出了一种基于Teager能量算子的局部冲击能量特征提取与分析方法;故障模拟试验数据分析结果表明,当气阀发生阀片断裂时,气阀开闭的局部振动能量显著降低。提出的方法能够突出气阀冲击变化特征,对气阀阀片故障分析诊断取得了较好的效果。
The gas valve is inevitably subjected to strong impact due to its high frequency opening and closing during the operation,and the valve plate often suffers from wear,breakage,and other failures. In this paper,the fracture of the reciprocating compressor was taken as the research object. The online monitoring data was obtained through the fault simulation experiment.A method of extracting and analyzing the local impact energy based on the Teager energy operator was proposed. The results of the fault simulation experiment show that when the valve plate is broken,the local vibration energy of the gas valve for opening and closing was significantly reduced. The method proposed in this paper can highlight the characteristics of the valve impact change,and achieved better results in the fault analysis and diagnosis of the valve plate.
作者
舒悦
张谦
谢传东
王乐
茆志伟
SHU Yue;ZHANG Qian;XIE Chuan-dong;WANG Le;MAO Zhi-wei(State Key Laboratory of Compressor Technology,Hefei General Machinery Research Institute Co.,Ltd.,Hefei 230031,China;Hefei General Environment Control Technology Co.,Ltd.,Hefei 230031,China;Beijing Key Laboratory of Health Monitoring Control and Fault Self-recovery for High-end Machinery,Beijing University of Chemical Technology,Beijing 100029,China)
出处
《流体机械》
CSCD
北大核心
2018年第12期1-5,共5页
Fluid Machinery
基金
国家重点研发计划项目(2016YFF0203300)
合肥通用机械研究院有限公司青年科技基金项目(2016010472)
关键词
往复压缩机
气阀振动
信号
故障诊断
reciprocating compressor
gas valve
vibration signal
fault diagnosis
