Open AccessBoundary rod elements for modeling the railway at the bridge crossing under the action of the speed railway load
Author(s) -
I. I. Ivanchenko
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/913/3/032062
Subject(s) - bridge (graph theory) , moving load , structural engineering , action (physics) , trigonometric functions , trigonometry , inertial frame of reference , track (disk drive) , trigonometric series , boundary (topology) , beam (structure) , computer science , finite element method , engineering , geometry , mathematical analysis , mathematics , classical mechanics , physics , mechanical engineering , medicine , quantum mechanics
New rod boundary elements on an elastic foundation (finite elements of large length, when approximating the displacements by a set of linear and trigonometric functions) are proposed for calculating the path oscillations outside the bridge and on the bridge, combined with a double-track beam bridge connected through a layer with a high-speed rolling stock movement. The selection of interlayer material is related to the dynamics of the bridge. To build the methodology, the articles published earlier by the author are used: a step-by-step procedure for solving the problems of unsteady dynamics of structures and the method of “nodal accelerations” to take into account the action on the structures of a moving inertial load.