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• W4386040981 abstract "This paper presents an efficient parallel computing strategy to solve large-scale structural vibration problems. The proposed approach utilises a novel direct method that operates using simplex-shaped space-time finite elements and allows for the direct decoupling of variables during the assembly of global matrices. The method uses consistent stiffness, inertia and damping matrices and deals with non-symmetric matrices. One significant advantage of this approach is that the computational cost remains unaffected by the bandwidth of the matrix in the traditional sense because only non-zero coefficients are retained. The speed of computations demonstrates a noticeable increase as the number of nodes and the problem's dimensionality grow. To demonstrate the effectiveness of the parallel space-time approach, a comparison with a sequentially executed code was conducted. The results indicate that the proposed method enables calculations at least 20 times faster than those achieved using the classical finite element method. Furthermore, the parallelisation algorithm was successfully implemented to solve a dynamics problem involving a large-scale, three-dimensional railway structure subjected to a moving load. Remarkably, the problem was solved in a reasonable amount of time using a relatively low-cost personal computer." @default.
• W4386040981 created "2023-08-22" @default.
• W4386040981 creator A5003411288 @default.
• W4386040981 creator A5005927037 @default.
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• W4386040981 date "2023-10-01" @default.
• W4386040981 modified "2023-10-15" @default.
• W4386040981 title "Efficient strategy for space-time based finite element analysis of vibrating structures" @default.
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• W4386040981 doi "https://doi.org/10.1016/j.camwa.2023.08.002" @default.
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