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- W2476596340 abstract "There are two common derailment scenarios which have been investigated in the railroad vehicle dynamics literature: flange wheel climb and wheel lift. Flange climb derailments are more frequent and can occur at low velocity. It is believed that the flange wheel climb, which is often associated with a large angle of attack (AOA), is the result of a tangential force that produces a contact force that acts upward at the wheel/rail contact point. The wheel lift, on the other hand, can be the result of hunting-produced high lateral velocity and large impact forces that can cause derailments. In this derailment scenario, the tangential force at one wheel can be downward as the result of the wheel life at the other wheel. This project is concerned with flange wheel climb derailments that occur at a large wheelset angle of attack. A fully nonlinear unconstrained multibody system (MBS) wheel climb derailment model is developed to analyze the forces that govern the wheel climb motion when oriented at a large scale AOA. The results of the MBS model in the vicinity of the climb initiation are verified using a semi-analytical model that makes use of simplifying assumptions derived from the current interpretation of wheel climb." @default.
- W2476596340 created "2016-08-23" @default.
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- W2476596340 date "2015-08-28" @default.
- W2476596340 modified "2023-09-27" @default.
- W2476596340 title "Integrated Dynamic Modeling of Rail Vehicles and Infrastructure: Wheel Climb at a Large Angle of Attack" @default.
- W2476596340 hasPublicationYear "2015" @default.
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