Torsional Vibration Monitoring Using MEMS Accelerometers

Abstract

The operation of modern machines under conditions of increased speeds and loads, as well as harsh environmental conditions, has become possible largely due to the more efficient use of materials but makes machines more susceptible to design errors and improper operation. One of the aspects of a more reliable and safe operation of machines is the limitation of torsional vibrations of their rotating parts. There are many techniques to measure torsional vibrations, but the novel one: is to use the microelectromechanical system accelerometers that provide a simple way to obtain the discrete measurement of torsional oscillations from the rotating shafts of marine power plants. The novelty lies in the use of the method of obtaining and wavelet analysis of the difference of signals in the measured area of the study of torsional vibrations of marine internal combustion engines. The approach of the Internet of Things was used to make the wireless data acquiring system for rotating shaft and tested on a torsional vibration experimental setup.