Impact of non-random vibrations in Mössbauer rotor experiments testing time dilation

the impact of e-readiness on ec success in public sector in iran the impact of e-readiness on ec success in public sector in iran

acknowledge the importance of e-commerce to their countries and to survival of their businesses and in creating and encouraging an atmosphere for the wide adoption and success of e-commerce in the long term. the investment for implementing e-commerce in the public sector is one of the areas which is focused in government‘s action plan for cross-disciplinary it development and e-readiness in go...

Cracked rotor vibrations by multifractal analysis

Multifractal analysis has been used to diagnoze cracked and healthy rotors. Is has been shown that the complexity and regularity criteria of the dynamical systems defined by the multiple scaling of the time series can indicate the damages of the rotating shaft.

On the Non-Gaussian Nature of Random Vehicle Vibrations

Gaussian elements. The hypothesis that random non-stationary vehicle vibrations are essentially composed of a sequence of zero-mean random Gaussian processes of varying standard deviations is tested and the paper reveals that the variations in the magnitude of the vibrations are the cause of the leptokurtic, non-Gaussian nature of the process. It is shown how non-stationary vibration signals ca...

Closed-loop shaker simulation of non-Gaussian random vibrations

Electromechanical Interaction in Rotor Vibrations of Electric Machines

In electric machines the electromagnetic fields interact with the deformations of machine structures. At low frequencies the electromagnetic system may couple distinctly with the mechanical one. This electromechanical interaction changes the vibration characteristics of the machine; e.g., it may induce additional damping or cause rotordynamic instability. To study these interaction effects, an ...