..., and motor current signals are often chatter vibration at an early stage have been attempted in the used [4]. In particular, vibration signals that contain various past by using fast Fourier transform (FFT) and short-time types of information can cause chatter vibrations, such as the Fourier transform (STFT...

... problems, heat deposition, nonequilibrium, filtering, Fourier transform. 1. INTRODUCTION The overall context of the analysis presented here concerns investigation of energy deposition in metals under conditions of extremely rapid relative motion of the energy source with respect to surfaces of workpiece...