【摘要】 本文对基于摩擦声发射信号的磨削粗糙度在线检测方法进行了实验研究。实验结果表明,采用声发射传感器探头与磨削表面摩擦产生的声发射信号的特征可以对磨削表面粗糙度进行评价,建立了摩擦声发射信号特征与磨削表面粗糙度之间的对应关系,并通过实验对该方法的可行性进行了实测。结果表明,探针与工件表面摩擦声发射信号的FFT和RMS特征与磨削粗糙度有很好的对应关系,可用于磨削表面粗糙度的在线检测。更多还原

【Abstract】 On-line nleasurcment method of grinding surface roughness hased on friction-induced acoustic emission was studied experimentally. The relationship between the FFT(fast Fourier transform) and RMS (root mean square) features of the friction-induced aciystic emission signal and the grinding roughness was found. The experimental results show that the grinding surface. roughness can be estimated by the friction-induced acoustic emission signal generated between acoustic emission sensor pin and the grinding surface. The study results indicate that the FFT and RMS features of the acoustic emission signal generated by friction can be used to detect to the grinding roughness online.更多还原