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Modelling, simulation and applications of longitudinal train dynamics

journal contribution
posted on 24.04.2018, 00:00 by Colin Cole, Maksym Spiryagin, Qing Wu, Yan Sun
Significant developments in longitudinal train simulation and an overview of the approaches to train models and modelling vehicle force inputs are firstly presented. The most important modelling task, that of the wagon connection, consisting of energy absorption devices such as draft gears and buffers, draw gear stiffness, coupler slack and structural stiffness is then presented. Detailed attention is given to the modelling approaches for friction wedge damped and polymer draft gears. A significant issue in longitudinal train dynamics is the modelling and calculation of the input forces–the co-dimensional problem. The need to push traction performances higher has led to research and improvement in the accuracy of traction modelling which is discussed. A co-simulation method that combines longitudinal train simulation, locomotive traction control and locomotive vehicle dynamics is presented. The modelling of other forces, braking propulsion resistance, curve drag and grade forces are also discussed. As extensions to conventional longitudinal train dynamics, lateral forces and coupler impacts are examined in regards to interaction with wagon lateral and vertical dynamics. Various applications of longitudinal train dynamics are then presented. As an alternative to the tradition single wagon mass approach to longitudinal train dynamics, an example incorporating fully detailed wagon dynamics is presented for a crash analysis problem. Further applications of starting traction, air braking, distributed power, energy analysis and tippler operation are also presented. © 2017 Informa UK Limited, trading as Taylor & Francis Group.

History

Volume

55

Issue

10

Start Page

1498

End Page

1571

Number of Pages

74

eISSN

1744-5159

ISSN

0042-3114

Publisher

Taylor & Francis, Netherlands

Peer Reviewed

Yes

Open Access

No

Acceptance Date

15/04/2017

Author Research Institute

Centre for Railway Engineering

Era Eligible

Yes

Journal

Vehicle System Dynamics

Exports