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Computing schemes for longitudinal train dynamics : sequential, parallel and hybrid

journal contribution
posted on 06.12.2017, 00:00 by Qing Wu, Colin Cole
Conventionally, force elements in longitudinal train dynamics (LTD) are determined sequentially. Actually, all these force elements are independent from each other, i.e., determination of each one does not require inputs from others. This independent feature makes LTD feasible for parallel computing. A parallel scheme has been proposed and compared with the conventional sequential scheme in regard to computational efficiency. The parallel scheme is tested as not suitable for LTD; computing time of the parallel scheme is about 165% of the sequential scheme on a four-CPU personal computer (PC). A modified parallel scheme named the hybrid scheme was then proposed. The computing time of the hybrid scheme is only 70% of the sequential scheme. The other advantage of the hybrid scheme is that only two processors are required, which means the hybrid scheme can be implemented on PCs.

History

Volume

10

Issue

6

Start Page

1

End Page

4

Number of Pages

4

eISSN

1555-1423

ISSN

1555-1415

Location

USA

Publisher

The American Society of Mechanical Engineers

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Centre for Railway Engineering (2015- ); School of Engineering and Technology (2013- ); TBA Research Institute;

Era Eligible

Yes

Journal

Journal of computational and nonlinear dynamics.

Exports