Initial conditions to account for moving loads in truncated domains and propagating waves generated in the sub-Rayleigh regime by the quasi-static excitation of a train passing on a heterogeneous domain - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Initial conditions to account for moving loads in truncated domains and propagating waves generated in the sub-Rayleigh regime by the quasi-static excitation of a train passing on a heterogeneous domain

Résumé

When using FEM to solve wave propagation problems, the introduction of moving loads generates propagating parasitic waves due to the truncation of the computational domain. These waves can be avoided by introducing initial conditions obtained from a preliminary simulation. This technique is applied in the context of rail transport. A static load moving in sub-Rayleigh regime on an invariant by translation medium generates evanescent waves and is not taken into account in the prediction of ground vibrations in the far field. However, when the medium is heterogeneous propagating waves are generated
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Dates et versions

hal-03717627 , version 1 (08-07-2022)

Identifiants

  • HAL Id : hal-03717627 , version 1

Citer

Patryk Dec, Regis Cottereau, Baldrik Faure. Initial conditions to account for moving loads in truncated domains and propagating waves generated in the sub-Rayleigh regime by the quasi-static excitation of a train passing on a heterogeneous domain. 15ème colloque national en calcul des structures, Université Polytechnique Hauts-de-France [UPHF], May 2022, 83400 Hyères-les-Palmiers, France. ⟨hal-03717627⟩
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