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Longitudinal dynamics and energy analysis for heavy haul trains

journal contribution
posted on 06.12.2017, 00:00 by Qing Wu, S Luo, Colin Cole
Whole trip longitudinal dynamics and energy analysis of heavy haul trains are required by operators and manufacturers to enable optimisation of train controls and rolling stock components. A new technology named train dynamics and energy analyser/train simulator (TDEAS) has been developed by the State Key Laboratory of Traction Power in China to perform detailed whole trip longitudinaltrain dynamics and energy analyses. Facilitated bya controller user interface and a graphic user interface, the TDEAS can also be used as a train driving simulator. This paper elaborates the modelling of three primary parts in the TDEAS, namely wagon connection systems, air brake systems and train energy components. TDEAS uses advanced wedge-spring draft gear models that can simulate a wider spectrum of friction draft gear behaviour. An effective and efficient air brake model that can simulate air brake systems in various train configurations has been integrated. In addition, TDEAS simulates the train energy on the basis of a detailed longitudinal train dynamics simulation, which enables a further perspective of the trainenergy composition and the overall energy consumption.To demonstrate the validity of the TDEAS, a case study was carried out on a 120-km-long Chinese railway. The results show that the employment of electric locomotives with regenerative braking could bring considerable energy benefits. Nearly 40 % of the locomotive energy usage could be collected from the dynamic brake system. Most of tractive energy was dissipated by propulsion resistance that accounted for 42.48 % of the total energy. Only a smallamount of tractive energy was dissipated by curving resistance, air brake and draft gear systems.

Funding

Category 3 - Industry and Other Research Income

History

Volume

22

Issue

3

Start Page

127

End Page

136

Number of Pages

10

eISSN

2196-0577

ISSN

2095-087X

Location

Germany

Publisher

SpringerOpen

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Centre for Railway Engineering; Institute for Resource Industries and Sustainability (IRIS); Xi nan jiao tong da xue (China);

Era Eligible

Yes

Journal

Journal of modern transportation.

Exports

CQUniversity

Exports