The paper analyses the nonlinear dynamics in curves of 2–axle freight wagons. Both one isolated wagon or an assembly of three wagons are considered. The dependence on both curve radius and vehicle speed is pointed out and it is shown that, considering a single 2–axle freight car, the carbody experiences periodic oscillations with large amplitude (up to 12 mm) at relatively high speed values, which still lie in the operating speed range. The interaction between adjacent vehicles is also investigated, showing that the forces exchanged trough the coupling elements significantly affect the dynamics of the 2–axle freight wagons.
Analysis of the non linear dynamics of a 2–axle freight wagon in curves
DI GIALLEONARDO, EGIDIO;BRUNI, STEFANO;
2011-01-01
Abstract
The paper analyses the nonlinear dynamics in curves of 2–axle freight wagons. Both one isolated wagon or an assembly of three wagons are considered. The dependence on both curve radius and vehicle speed is pointed out and it is shown that, considering a single 2–axle freight car, the carbody experiences periodic oscillations with large amplitude (up to 12 mm) at relatively high speed values, which still lie in the operating speed range. The interaction between adjacent vehicles is also investigated, showing that the forces exchanged trough the coupling elements significantly affect the dynamics of the 2–axle freight wagons.| File | Dimensione | Formato | |
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IAVSD2011_0097.pdf
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