Abstract
The paper describes a computational model and an original software system, UKS-Dynamic, for the analysis of dynamic interaction between train pantographs and an overhead catenary system at high-speed railway lines. The study focuses on the problem of reducing non-physical high-frequency oscillations arising in dynamic simulations due to the spatial discretization of flexible wires of the catenary. A number of model problems are solved both analytically and numerically, and the quality of high-frequency mode suppression is studied for several suppression techniques, including specific time integrators (beta-Newmark and generalized-alpha methods) and Rayleigh damping. The model is validated against the solutions of etalon problems given by the EN 50318:2018 standard for alternating and direct current catenary lines at a train speed of 320 km/h. Code parallelization employs the OpenMP library; the code profiling results are presented for both serial and parallel implementations.
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Kudryashov, E., Melnikova, N. (2022). Parallel Simulations of Dynamic Interaction Between Train Pantographs and an Overhead Catenary Line. In: Sokolinsky, L., Zymbler, M. (eds) Parallel Computational Technologies. PCT 2022. Communications in Computer and Information Science, vol 1618. Springer, Cham. https://doi.org/10.1007/978-3-031-11623-0_16
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DOI: https://doi.org/10.1007/978-3-031-11623-0_16
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