The boundary element method (BEM) in the context of acoustics or Helmholtz problems is
reviewed in this paper. The basis of the BEM is initially developed for Laplace's equation …

This paper presents a boundary element method for calculating the sound pressure level on
and above a ground-board placed on an infinite ground plane with constant impedance …

The sound radiation from rolling tyres is still not very well understood. Although details such
as horn effect or directivity during rolling have been investigated, it is not clear which …

Current models for the acoustic radiation from railway wheels assume free field radiation.
However, slab tracks are increasingly used for new railway lines. The acoustically hard …

In practical situations, vibrating objects are usually located above a reflecting plane instead
of exposing to a free field. The conventional nearfield acoustic holography (NAH) sometimes …

The influence of track parameters on the sound radiation has so far mainly been studied for
ballasted tracks. The increasing usage of slab tracks in new railway lines worldwide makes …

Shifting to rail-bound freight and passenger traffic is key in Europe's strategy towards
transport decarbonisation. However, increasing railway traffic can increase environmental …

A high-frequency fast multipole boundary element method (FMBEM) based on the Burton–
Miller formulation is proposed for three-dimensional acoustic wave problems over an infinite …

In this study, a boundary integral equation method is proposed for investigating acoustic
pressure radiation from a sphere pulsating near a free surface or an impedance plane. The …

In this article, we consider the numerical prediction of the noise emission from a wheelset in
laboratory conditions. We focus on the fluid–structure interaction leading to sound emission …