摘要
从工程实际问题出发 ,论述了分形维数的基本概念和性质 ,给出了定量描述分形特征的重要参数——关联维数的计算方法 ,分析了发动机故障的特点 ,提出了将关联维数用于汽车发动机故障诊断的技术路线及方法。
The concepts and properties of fractal dimension are discussed from the view point of engineering applications. A computation method of connection dimension--an important parametes for quantitively describing the characteristic of fract is given. Based on the analysis of the features of vehicle engine faults, a technical way to the diagnosis of the faults by using connection dimension is proposed.
出处
《振动．测试与诊断》
EI
CSCD
2001年第4期275-280,共6页
Journal of Vibration,Measurement & Diagnosis
关键词
分形维数
降噪方法
故障诊断
汽车发动机
fractal dimension wavelet noise reduction fault diagnosis engine
