Tiago Henrique Machado

TL;DR: In this article, the authors present a numerical model that characterizes both the hydrodynamic bearing as well as the wear present in its wall, and then, analyze the influence of the wear on the dynamic response of the rotor-bearing system in frequency domain, taking into account the rising of the backward component due to the increase of the bearing anisotropy.

TL;DR: A numerical model was developed to simulate the ovalization fault conditions in order to build training datasets and a deep convolutional neural network algorithm was trained with the generated datasets and used to predict the faults conditions.

TL;DR: In this article, a solution for the evaluation of the hydrodynamic force components of the journal bearings obtained from the integration of the Reynolds equation for infinitely short bearings is proposed, where the angular position in the bearing reference system where the pressure is null is calculated taking into account only the positive pressure.

TL;DR: Time response of a rotor-bearing system, under different worn bearing condition, is analyzed in order to define a general vibration behavior that characterizes the presence of bearing wear.

TL;DR: In this article, the validity of linear approximation for the oil film forces is discussed when the system operates under specific conditions, pointing out the influence of critical phenomena and dynamic parameters in rotordynamic analysis.