Prediction of vibrations induced by railway traffic using a surrogate model

Resumo

Over the latter years has been a demand for the development of advanced numerical techniques for the
prediction of ground-borne vibrations induced by railway traffic which can provide the desired level of accuracy,
despite of structural complexity of the entire system. Despite the suitability of these models in dealing with such
phenomena, their applicability to cases where it is intended to have a general assessment of the potential impacts
of a new/updated railway project is difficult to achieve. In such cases, the development of expedited prediction
methods is desired, allowing the delimitation of cases that require a deeper analysis, using advanced numerical
models, and of those that can be immediately discarded, with all the benefits of cost and time associated. Thus, it
is the intention to develop an innovative prediction tool, powered by an efficient and intelligent calculation engine
based on surrogate modelling, that allows an efficient assessment of ground-borne vibrations at the free-field
surface due to railway operation.