2020 | OriginalPaper | Chapter
Prediction of Maximum Torsional Wheel-Set Axle Vibrations Considering Non-linear Adhesion Characteristics
Authors: Alexander Meierhofer, Christof Bernsteiner, Gabor Müller, Florian Semrad, Franz-Josef Weber, Martin Rosenberger, Klaus Six
Publisher: Springer International Publishing
Published in:
Advances in Dynamics of Vehicles on Roads and Tracks
Abstract
Self-excited torsional wheel-set axle vibrations can lead to polygonization of wheels, cause discomfort for the passengers, and can lead to issues with the stability of the press-fit between wheel and wheel-set. To predict their amplitude, three different methods were investigated: a time-simulation for reference, an energy-method, and the 2cx-hypothesis. It was found that the 2cx-hypothesis shows significant deviations. The energy-method is very accurate (deviations smaller than 0.5%) while still significantly faster than the time-simulation. Thus, the energy method is a viable alternative to predict the amplitude of these vibrations.
