摘要
为解决柴油发动机故障振动信号分析过程中的不稳定性和非线性,使用切片维格纳三谱来分析柴油机振动信号的时频分布,柴油机故障信号的切片维格纳三谱表明,每一种故障均具有各自的特征,从而为区分不同柴油机故障提供了信息依据.
The Wigner trispectrum of the cross item is used to analyse the vibration signals from diesel engine in this paper, and the result prove： each fault has its character, this method supplys the information in order to distinguish the faults of the diesel engine.
出处
《大连铁道学院学报》
2006年第1期44-46,共3页
Journal of Dalian Railway Institute
关键词
高阶谱
切片维格纳三谱
故障诊断
high order matrix
slice of wigner trispectrum
fault distinguish
