PARALLEL COMPUTATIONS AND CO-SIMULATION IN UNIVERSAL MECHANISM SOFTWARE. PART II: EXAMPLES

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Transport Problems

Silesian University of Technology

Subject: Economics , Transportation , Transportation Science & Technology

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VOLUME 14 , ISSUE 4 (December 2019) > List of articles

PARALLEL COMPUTATIONS AND CO-SIMULATION IN UNIVERSAL MECHANISM SOFTWARE. PART II: EXAMPLES

Dmitry POGORELOV / Alexander RODIKOV / Roman KOVALEV *

Keywords : multibody dynamics; parallel computations; co-simulation; railway research

Citation Information : Transport Problems. Volume 14, Issue 4, Pages 31-38, DOI: https://doi.org/10.20858/tp.2019.14.4.3

License : (CC BY 4.0)

Received Date : 12-May-2018 / Accepted: 04-October-2019 / Published Online: 08-December-2019

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The second part of the paper continues a discussion on the topic of parallel computations in railway dynamics. The algorithms described in the first part of the paper are applied to parallel simulation on computers with multicore processors of six different models of rail vehicles and trains with the number of degrees of freedom from about one hundred to more than 20 thousands. A considerable simulation speedup is reported. In addition, an example of evaluation of wheel profile wear on multicore processors and comparison of different approaches to multi-variant computations are considered.

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1. Pogorelov, D. & Rodikov, A. & Kovelev, R. Parallel computations and co-simulation in Universal Mechanism Software. Part I: Algorithms and implementation. Transport Problems. 2019. Vol. 14(3). P. 163-175.

2. Universal Mechanism. Bryansk: Laboratory of Computational Mechanics. Available at: www.universalmechanism.com/

3. Pogorelov, D.Y. Simulation of rail vehicle dynamics with Universal Mechanism software. In: Sładkowski, A. (ed.). Rail vehicle dynamics and associated problems. Gliwice: Wydawnictwo Politechniki Śląskiej. 2005. P. 13–58.

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7. Михеев, Г.В. & Погорелов Д.Ю. & Родиков, А.Н. Методы моделирования динамики железнодорожных колесных пар с учетом упругости. Вестник Брянского государственного технического университета. 2019. No. 4(77). P. 40–51. [In Russian: Mikheev, G. & Pogorelov, D. & Rodikov A. Methods for wheelset dynamic modeling taking into account elasticity. Proceedings of Bryansk State Technical University].

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