摘要
提出了一种基于小波变换的飞轮瞬时转速检测柴油机气缸动力性能的新方法。对电涡流位移传感器拾取的飞轮轮齿通过信号直接进行时域采样，结合小波变换通过软件处理，获得精度很高的发动机工作瞬时转速波动信号，从而有效地检测柴油机气缸动力性能。
A newly developed technique for monitoring the dynamic property of diesels by the wavelet transform of fly wheel instantaneous rotational speed has been developed. The speed is simply measured by an eddy current displacement sensor opposite to the fly wheel gear teeth. A precise speed fluctuation waveform of the diesel is obtained by the wavelet transform, which can be used to monitor the dynamic property of the diesel validly.
出处
《振动．测试与诊断》
EI
CSCD
1999年第2期105-110,共6页
Journal of Vibration,Measurement & Diagnosis
关键词
柴油机
气缸
故障诊断
小波分析
动力性能
diesel engine cylinder fault diagnosis wavelet analysis dynamic property instantaneous rotational speed
