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, "A Time Domain Boundary Element-Finite Element Coupling Approach based on the Finite Element Implicit Green's Functions for Induced Vibrations from High-Speed Trains", in J. Pombo, (Editor), "Proceedings of the First International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 123, 2012. doi:10.4203/ccp.98.123

Keywords: high-speed train, time domain, FEM-BEM coupling, implicit Green's function, truncated convolution.

Summary

This paper describes a three dimensional boundary element - finite element coupling approach in the time domain to study induced vibrations from the passage of high-speed trains. The track is modelled using finite elements and the soil is represented using boundary elements. Both are analyzed separately and the coupling conditions are established at the track-soil interface. An algorithm based on implicit Green's functions is used to carry out the finite element time integration. The efficiency of the boundary element method is improved by time-domain interpolation of the boundary element matrices. The process is carried out using a linear combination of equations for several time steps to ensure that the procedure is stable with resepect to time. Existing analytical solutions for some simple problems are used to validate and illustrate the accuracy and efficiency of the proposed numerical model.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 98 PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 123 A Time Domain Boundary Element-Finite Element Coupling Approach based on the Finite Element Implicit Green's Functions for Induced Vibrations from High-Speed Trains A. Romero, J. Maestre, J. Domínguez and P. Galvín Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Spain doi:10.4203/ccp.98.123 purchase the full-text of this paper Full Bibliographic Reference for this paper , "A Time Domain Boundary Element-Finite Element Coupling Approach based on the Finite Element Implicit Green's Functions for Induced Vibrations from High-Speed Trains", in J. Pombo, (Editor), "Proceedings of the First International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 123, 2012. doi:10.4203/ccp.98.123 Keywords: high-speed train, time domain, FEM-BEM coupling, implicit Green's function, truncated convolution. Summary This paper describes a three dimensional boundary element - finite element coupling approach in the time domain to study induced vibrations from the passage of high-speed trains. The track is modelled using finite elements and the soil is represented using boundary elements. Both are analyzed separately and the coupling conditions are established at the track-soil interface. An algorithm based on implicit Green's functions is used to carry out the finite element time integration. The efficiency of the boundary element method is improved by time-domain interpolation of the boundary element matrices. The process is carried out using a linear combination of equations for several time steps to ensure that the procedure is stable with resepect to time. Existing analytical solutions for some simple problems are used to validate and illustrate the accuracy and efficiency of the proposed numerical model. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £110 +P&P)
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