摘要
阐明了引起气缸盖振动的激励源特征，实测了气门不同技术状态下气缸盖表面的振动信号，经分析与计算后提出了振动信号的特征参数．研究表明：可以用柴油机气缸盖表面振动信号诊断气门漏气故障。
The authores describe the vibrational characteristics of excitation soures which cause the vibration of cylinder head.The vibrational signals on cylinder head are measured and analysed at multipoint in various working conditions.The feature parameters of the vibrational signals are obtained by analysing and calculating.This implies the feasibility of diagnosing valve leakage in diesel engine by analysing vibrational signals.Such diagnosis approach of valve leakage can serve for developing real time monitoring and diagnosing system.
出处
《武汉交通科技大学学报》
EI
1997年第1期27-31,共5页
Journal of Wuhan University of Technology(Transportation Science & Engineering)
关键词
振动
柴油机
气门
漏气
故障诊断
diesel engine
vibrational diagnosis
valve leakage
