流体机械2017，Vol.45Issue(9)：45-48,4.DOI:10.3969/j.issn.1005-0329.2017.09.009
基于活塞杆沉降位移信号的活塞杆断裂故障诊断方法的研究
Research on Fault Diagnosis Method of The Piston Rod Fracture Based on The Piston Rod Displacement Signal of Reciprocating Compressor
摘要
Abstract
Piston rod fracture fault of reciprocating compressor is a kind of serious fault. Based on Griffith criterion, the mechanism of piston rod fracture is analyzed, and it is figured out that the vibration amplitude of piston rod will increase when piston rod fracture occurs. Meanwhile, piston rod displacement signal is de-noised with wavelet, and the de-noised signal is used to calculate peak-peak value. At last, with several cases of piston rod fracture fault, it is proved that that the vibration amplitude of piston rod indeed increases when piston rod fracture occurs, so that the peak-peak value could be taken as features to alarm or diagnose piston rod fracture fault.关键词
往复压缩机/活塞杆断裂/峰峰值/小波降噪Key words
reciprocating compressor/piston rod fracture/peak-peak value/wavelet de-noising分类
机械制造引用本文复制引用
李晓博,江志农,佟艳宾,刘帅,张进杰..基于活塞杆沉降位移信号的活塞杆断裂故障诊断方法的研究[J].流体机械,2017,45(9):45-48,4.基金项目
国家高技术研究发展计划(863计划)项目(2014AA041806) （863计划）
中央高校基本科研业务费专项资金资助(ZY1617) （ZY1617）
