TY - JOUR
T1 - Physical processes in wheel-rail contact and its implications on vehicle track interaction
AU - Six, Klaus
AU - Meierhofer, Alexander
AU - Müller, Gabor
AU - Dietmaier, Peter
N1 - online erschienen am 17.12.2014
PY - 2014
Y1 - 2014
N2 - Friction within the wheel–rail contact highly influences all aspects of vehicle–track interaction. Models describing this frictional behaviour are of high relevance, for example, for reliable predictions on drive train dynamics. It has been shown by experiments, that the friction at a certain position on rail is not describable by only one number for the coefficient of friction. Beside the contact conditions (existence of liquids, solid third bodies, etc.) the vehicle speed, normal loading and contact geometry are further influencing factors. State-of-the-art models are not able to account for this sufficiently. Thus, an Extended-Creep-Force-Model was developed taking into account effects from third body layers. This model is able to describe all considered effects. In this way, a significant improvement of the prediction quality with respect to all aspects of vehicle–track interaction is expected.
AB - Friction within the wheel–rail contact highly influences all aspects of vehicle–track interaction. Models describing this frictional behaviour are of high relevance, for example, for reliable predictions on drive train dynamics. It has been shown by experiments, that the friction at a certain position on rail is not describable by only one number for the coefficient of friction. Beside the contact conditions (existence of liquids, solid third bodies, etc.) the vehicle speed, normal loading and contact geometry are further influencing factors. State-of-the-art models are not able to account for this sufficiently. Thus, an Extended-Creep-Force-Model was developed taking into account effects from third body layers. This model is able to describe all considered effects. In this way, a significant improvement of the prediction quality with respect to all aspects of vehicle–track interaction is expected.
U2 - 10.1080/00423114.2014.983675
DO - 10.1080/00423114.2014.983675
M3 - Article
SN - 1744-5159
VL - 53
SP - 635
EP - 650
JO - Vehicle System Dynamics
JF - Vehicle System Dynamics
IS - 5
ER -