Article 5

The case studies of varied switches for the varied wheel profiles of the railway vehicle in terms of the derailment phenomena

Veysel Arlı1 , Haydar Sahin2 , Fatih Zafer Topsakal3 and Kazım Can4  

1 Consultant of the General Manager Istanbul Ulaşım A.Ş. Istanbul, Turkey

2 System Integration Department Istanbul Ulaşım A.Ş. Istanbul, Turkey

3 System Integration Department Istanbul Ulaşım A.Ş.Istanbul, Turkey

4 R&D Manager Istanbul Ulaşım A.Ş. Istanbul, Turkey

The flange climb derailment is one of the cause of derailment for a typical switch. The derailment for the switch is a complex phenomenon since the contact area is changing dynamically. The contact angle between the wheel flange and the switch point is investegated in terms of the risk on the derailment. The contribution of this study is proving that UIC716R standard recommendation about the switch flange geometry is valid in terms preventing the derailment.

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