Multi-objective design optimisation of transition zones between different railway track forms
Paper in proceedings, 2018

The vertical dynamic interaction between vehicle and railway track is simulated in the time domain using an extended state space vector approach. The track model includes a transition zone between slab track on a bridge and ballasted track on an embankment. By considering a multi-objective optimisation problem, solved using a genetic algorithm, selected vehicle and track responses are simultaneously minimised by optimising the distributions of rail pad stiffness and sleeper spacing in the transition zone. It is shown that the magnitudes of the maximum dynamic loads in the optimised transition zone can be reduced to be similar as the magnitudes far away from the transition zone.

Slab track

Railway track transitions

Transition zone

Genetic algorithm

Vehicle–track interaction

Optimisation

Author

Emil Aggestam

Chalmers, Mechanics and Maritime Sciences, Dynamics

Jens Nielsen

Chalmers, Mechanics and Maritime Sciences, Dynamics

Andreas Andersson

Swedish Transport Administration

Royal Institute of Technology (KTH)

Martin Li

Swedish Transport Administration

Proceedings of the 11th International Conference on Contact Mechanics and Wear and Rail/Wheel Systems

2590-0609 (ISSN)

1-6

11th International Conference on Contact Mechanics and Wear and Rail/Wheel Systems
Delft, Netherlands,

Subject Categories

Mechanical Engineering

Areas of Advance

Transport

More information

Latest update

1/31/2019