Investigating The Traction System In Trains
Author(s)
A. Daadbin, Z. Biqian & J. Rosinski
Abstract
The paper looks at the traction system with the view on the interaction between
the wheel and the rail. A theoretical model is proposed which includes all the
components in the traction system and their dynamic influence on each other.
The programming is carried out in MatLab.
With flat wheel condition, the actual measurement of the rail strain during the
impact is made and the stress level obtained. The results are compared with the
stress levels calculated from the model. The verified model will enable one to
study the system vibration/performance for any design modification on the
components and the condition on the rail affecting the traction.
Keywords: traction system, modelling rail-wheel interaction, flat wheel, bogie
gearbox.
1 Introduction
The development in the rail technology has created a relatively safe and
economical transport system. The rail-wheel interface is considered to be a
major part in the rail traction system. Problems such as rail head fatigues, rail
surface spalling, rail surface roughness and wheel flat cracks may lead to failing
contacts between the rail and the wheel resulting in an accident.
As the wheels in the bogie are driven by a motor through a gearbox, it
becomes necessary to analyse the whole driving system in assessing the
interaction between the rail and the wheel. Any input force at the interface will
influence the dynamics of the driving system which in turn would affect the
behaviour of the rail-wheel contact.
Keywords
traction system, modelling rail-wheel interaction, flat wheel, bogie
gearbox
Related Book
Other papers in this volume
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