DIAGNOSIS OF ABNORMAL CONDITIONS ON A SINGLE CYLINDER RECIPROCAL ENGINE BY GENERATED VIBRATION AND ACOUSTIC SIGNALS
This paper experimentally examines the possibility of diagnose abnormal conditions about a four stroke single cylinder reciprocal engine from generated vibration and acoustic signals measured by accelerometers, a condenser microphone and an AE sensor. Furthermore, acoustic diagnosis by a condenser microphone applies adaptive line enhancer which is type of adaptive filters to increase signal to noise ratio. Artificially assumed abnormal conditions in the reciprocal glow engine are concerning push rod driven rocker arm, closing timing on intake and exhaust valves and a rolling bearing sustained a crank shaft of its engine. Identification of above abnormal conditions has been carried out based on characteristic abnormal periodic signals associated rotational frequency of the reciprocal glow engine. In conclusion, it is possible to diagnose above three abnormal conditions even though differing degree of accuracy.
Diagnosis Reciprocal Engine Vibration Acoustic AE Adaptive Filter Failure Rolling Bearing
Hiromitsu OHTA Terunori AIKAWA Minoru TUDA
Department of Ocean Mechanical Engineering, National Fisheries University, 2-7-1, Nagata-honmachi,Sh Fisheries Science and Mechanical Engineering, Graduate student of National Fisheries University,2-7-
国际会议
北京
英文
1215-1221
2008-10-27（万方平台首次上网日期，不代表论文的发表时间）