1. Jweeg MJ, Alnomani SN, Mohammad SK. Dynamic analysis of a rotating stepped shaft with and without defects. In: IOP Conference Series: Materials Science Engineering. Publishing, 2020:012004.‏ https://doi.org/10.1088/1757-8.... CrossRef Google Scholar

In this paper, the effects of transverse cracks on rotating shaft are studied. According to earlier works, crack shaft failure decrease the critical speed of the shaft and also exhibit a nonlinear vibration behaviour leading to increases the amplitude of 1X and 2X harmonics (first and second order of rotational speed in torsional vibration). This suggests that the application of order analysis ...

Misalignment and unbalance are the major concerns in rotating machinery. When the power supply to any rotating system is cutoff, the system begins to lose the momentum gained during sustained operation and finally comes to rest. The exact time period from when the power is cutoff until the rotor comes to rest is called Coast Down Time. The CDTs for different shaft cutoff speeds were recorded at...

Complex rotating machine trains especially trains including electric machines are subject to the most varied and often most severe torsional disturbances. If shaft or rotating component failures occur as a result of torsional oscillations, the consequences can be catastrophic. In this paper a comprehensive model and simulation method using analytical formulations are developed to study both ste...

Abstract In view of the problems such as difficulty in and high cost vibration signal collection rotating mechanical shaft, this paper proposes a low-cost, fast, stable reliable hydraulic turbine wheel online monitoring scheme specially designed to imbalance dynamic balance counterweight shaft. Three high-frequency wireless acceleration sensors are installed on shaft monitor signals three direc...