功率谱逆变换对数在齿轮箱故障诊断中的应用

摘要

According to the nature and characteristic of frequency spectrum analysis ,this paper puts forward applying frequency spectrum analysis method to gearbox fault diagnosis ,for improving the signal-to-noise ratio in fault diagnosis .The feasibility of using the logarithm of Fourier inverse transform of signal power spectrum in gear box fault diagnosis is verified , and the characteristics of gear box fault are obtained .%　　根据频谱分析的性质和特点，提出在故障诊断中提高信噪比的频谱分析方法。将功率谱傅里叶逆变换对数应用在齿轮箱故障诊断中，并分析了齿轮箱的故障特征。