Contact force between a wheel and a rail has a significant impact on stability of a railway vehicle traveling on a curve, which is greatly dependant on the vehicle motion and the contact position. The contact position between a wheel and a rail is...
Wear development with polygonal shape on a rotating elastic body is a kind of pattern formation phenomenon in mechanical vibration. The polygonal deformation occurs gradually, and this causes strong vibration and noise in machine operations. This ...
For high speed railway vehicles, it is very important to prevent the hunting motion. By running test with half vehicle (that is a half car body and one bogie) on roller rigs, we have investigated vibration characteristics and the dynamic behavior ...
When the train accelerates/decelerates or when the failed train is in traction by the relief train, the coupler force becomes a problem from the viewpoint of tolerance against a train buckling. By analyzing the motion of the coupled train at large...
Recently, many researches concern vehicle dynamics analysis under derailment conditions and trainset are increasing. Although the behavior of the coupler in large displacement is noticeable, this characteristic is not necessarily clarified. In thi...