噪声与振动控制2017，Vol.37Issue(2)：137-142,6.DOI:10.3969/j.issn.1006-1355.2017.02.028
基于ASTFA和SDEO解调的行星齿轮箱故障诊断方法
A Method of Planetary Gearboxes Fault Diagnosis Based on ASTFA and SDEO Demodulation
摘要
Abstract
According to the modulation characteristics of fault signals of planetary gearboxes, a demodulation method based on adaptive and sparsest time-frequency analysis (ASTFA) and symmetric difference energy operator (SDEO) is proposed to extract instantaneous amplitude and instantaneous frequency information of the fault signals. Firstly, the fault signals of the planetary gearboxes are decomposed into several mono-component signals by ASTFA method. Then, SDEO method is used to demodulate the mono- component signals. Consequently, the instantaneous amplitudes and the instantaneous frequencies of the mono-component signals can be obtained and the envelope spectra can be worked out. This method can be effectively applied to analyze simulative fault signals and actual fault signals of planetary gearboxes. The analysis results prove that the fault features can be extracted accurately and the faults of the planetary gearboxes can also be diagnosed by this method.关键词
振动与波/自适应最稀疏时频分析/对称差分能量算子/行星齿轮箱/故障诊断Key words
vibration and wave/adaptive and sparsest time-frequency analysis/symmetric difference energy operator/planetary gearbox/fault diagnosis分类
机械制造引用本文复制引用
程军圣,杨兴凯,李宝庆,杨宇..基于ASTFA和SDEO解调的行星齿轮箱故障诊断方法[J].噪声与振动控制,2017,37(2):137-142,6.基金项目
国家自然科学基金资助项目(51375152) （51375152）
智能型新能源汽车国家2011协同创新中心、湖南省绿色汽车2011协同创新中心资助项目 （）
