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Assessing wagon Instability in long trains using parallel co-simulation technique

conference contribution
posted on 11.05.2022, 05:17 by Qing WuQing Wu, Colin ColeColin Cole, Maksym SpiryaginMaksym Spiryagin, Yan SunYan Sun

Wagon running safety and stability issues, such as wagon rollover, wheel climb, body pitch, bogie pitch and wagon lift, are more prominent in long heavy haul trains due to larger in-train forces (longitudinal and lateral) and more force occurrences. This paper used detailed wagon-train interaction models based on an advanced parallel co-simulation method. This method connects a commercial multibody dynamics simulation software package (GENSYS) to an in-house Longitudinal Train Dynamics (LTD) simulation software package. In this way, the developed models are able to simulate detailed wagon models (three-dimensional with wheel-rail contact and track geometries, by GENSYS) and detailed in-train force models (coupler angles, train braking, train traction, etc. by in-house software package). When needed, a parallel computing technique can process the simulations of multiple wagons simultaneously, which increases the computing speed and simplifies the simulation coordination. Nine simulations were conducted on a 25 km long track section with real-world track grades and curves. The simulation results show derailments can occur when empty or half loaded wagons were placed right behind the remote locomotive consists.

History

Start Page

575

End Page

583

Number of Pages

9

Start Date

21/06/2021

Finish Date

23/06/2021

ISBN-13

9781925627602

Location

Perth, Western Australia

Publisher

Railway Technical Society of Australasia (RTSA)

Place of Publication

Online

Peer Reviewed

Yes

Open Access

No

Author Research Institute

Centre for Railway Engineering

Era Eligible

Yes

Name of Conference

CORE 2021: Conference on Railway Excellence

Parent Title

CORE2021: Conference Proceedings