摘要
Abstract
The vibration signal is one of important bases for fault diagnosis of wind turbine gearbox. In this article, the correlation of vibration signals acquired from different positions of gearbox is analyzed, and the cross-correlation signal is obtained simultaneously. Then, the model of adaptive filtering by utilizing the cross-correlation signal as a reference signal is established, and the similar components of different vibration signals are extracted. Afterwards, the amplitude spectrum method is utilized to analyze the similar components, and the rotating frequency and its harmonics, which are significant for fault diagnosis of the gearbox, are obtained. Finally, the effectiveness of the method is verified by online vibration data.关键词
振动与波/故障诊断/齿轮箱/相关分析/自适应滤波/振动信号Key words
vibration and wave/fault diagnosis/gearbox/correlation analysis/adaptive filter/vibration signal分类
信息技术与安全科学
