Insulated Railway Joints fail mainly because of repeated shocks in the end post region causing loss of insulation (lipping) and eventually leading to broken rails and train derailments. Qualification tests are inadequate as they do not replicate impact loads. A patented joint named ABJ, made of switch rails forged with a very shallow inclined cut and a thick cover joint, is introduced in the paper. ABJ shows no dip angle in the transition area, resulting is smooth wheel-rail transition forces preventing rail damage, impact noise, vibrations and ballast deterioration. It can be installed on standard track and it is tampable.
SMOOTH TRANSITION INSULATED RAIL JOINTS / Megna G.; Bracciali A.. - ELETTRONICO. - (2022), pp. 733-741. (Intervento presentato al convegno 12th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, CM 2022 tenutosi a aus nel 2022).
SMOOTH TRANSITION INSULATED RAIL JOINTS
Megna G.
;Bracciali A.
2022
Abstract
Insulated Railway Joints fail mainly because of repeated shocks in the end post region causing loss of insulation (lipping) and eventually leading to broken rails and train derailments. Qualification tests are inadequate as they do not replicate impact loads. A patented joint named ABJ, made of switch rails forged with a very shallow inclined cut and a thick cover joint, is introduced in the paper. ABJ shows no dip angle in the transition area, resulting is smooth wheel-rail transition forces preventing rail damage, impact noise, vibrations and ballast deterioration. It can be installed on standard track and it is tampable.
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141_CM2022_Smooth_transition_IRJ.pdf
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