Abstract—The aim of this project is to investigate how the vibration signals and the acoustic signals can be used for state monitoring of the operating machines. The Fast Fourier Transform method is used to analyze the characteristics of the machine, based upon which the machinery problems during operation can be diagnosed precisely. The Fast Fourier Transform of the vibration signals and the acoustic signals are computed independently and their recital in the state monitoring of the health condition of operating machines is compared. On time state monitoring in the running condition of the machine is performed, which eliminates the need for a separate day for maintenance when the machines are shut down for monitoring the machine health condition. Hence a reliable process for the state monitoring of the machine health is put forward.
—FFT, acoustic signals, vibration, Machines
Cite: S. Devi, L. Siva Kumar, N. R. Shanker and K. Prabakaran, "A Comparative Study between Vibration and Acoustic Signals in HTC Cooling Pump and Chilling Pump," International Journal of Engineering and Technology
vol. 2, no. 3, pp. 273-277, 2010.