中国电机工程学报2013，Vol.33Issue(5)：119-127,前插17,10.
行星齿轮箱齿轮局部故障振动频谱特征
Vibration Spectral Characteristics of Localized Gear Fault of Planetary Gearboxes
摘要
Abstract
Gear faults are usually originated from localized damage. The vibration spectral characteristics of sun, planet and ring gears with localized damage are different from those of distributed gear faults, thus it is important to investigate them for fault diagnosis of planetary gearboxes via vibration signal spectral analysis. Considering both the amplitude modulation and the frequency modulation effects due to localized gear damage, as well as the time variation of vibration transfer paths, signal models of sun, planet and ring gear localized damage cases and their Fourier spectra were given in closed form, and the spectral characteristics were summarized. Meanwhile, explicit equations for calculating the characteristic frequency of localized gear faults were deduced. The theoretical derivations were validated using experimental datasets. According to the theoretical derivations, the localized damage of sun, planet and ring gears in a planetary gearbox was detected and located via spectral analysis.关键词
风力机/行星齿轮箱/局部故障/振动信号模型/特征频率/频谱Key words
wind turbine/ planetary gearbox/ localized fault/ vibration signal model/ characteristic frequency/ Fourier spectrum分类
机械制造引用本文复制引用
冯志鹏,赵镭镭,褚福磊..行星齿轮箱齿轮局部故障振动频谱特征[J].中国电机工程学报,2013,33(5):119-127,前插17,10.基金项目
国家自然科学基金项目(51075028,11272047) （51075028,11272047）
北京市自然科学基金项目(3102022). （3102022）
