In subtractive manufacturing, process monitoring systems are used to observe the manufacturing process, predict maintenance actions and suggest optimizations. One challenge, however, is that observable signals influenced not only by degradation of cutting tool, but also deviations in machinability among material batches. Thus it necessary first respective batch before making decisions. this stu...

The harmonic drive is an essential industrial component. In industry, the efficient and accurate determination of machine faults has always been a significant problem to be solved. Therefore, this research proposes anomaly detection model which can detect whether gear-failure through sound recorded by microphone. factory manager thus fault at early stage reduce damage loss caused in machine. re...

The global energy system is undergoing an undeniable change [...]

In this study, the change at rubbing surfaces has been investigated experimentally using an acoustic emission signal monitoring system. A steel ring is slipped on the surface of  a metallic sheet to simulate frictional conditions. The mechanical disturbances caused by the movement of the ring produce stress waves propagating along the sheet surface. The out of plane displacement of the sheet su...