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The influence of lateral track irregularities on track shift forces, rolling contact fatigue and component fatigue

Kalle Karttunen (Institutionen för tillämpad mekanik, Dynamik) ; Elena Kabo (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik) ; Anders Ekberg (Institutionen för tillämpad mekanik, Dynamik)
22nd IAVSD Symposium on Dynamics of Vehicles on Roads and Tracks, 14-19 August, Manchester, UK (2011)
[Konferensbidrag, övrigt]

Optimised maintenance of railways requires a knowledge of how a deteriorated track geometry will affect subsequent loading and damage of the track. In the current study its influence on track shift forces, rolling contact fatigue and component fatigue is investigated through numerical simulations. Multibody simulations incorporating a track with scaled lateral track irregularities are combined with fatigue evaluations using criteria from the literature to quantify the progressively increasing track deterioration as lateral irregularities grow.

Nyckelord: track geometry, track irregularities, track maintenance, multibody dynamic simulation, rolling contact fatigue, track shift force



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Denna post skapades 2012-01-09. Senast ändrad 2017-03-21.
CPL Pubid: 151967