Work

Numerical Analysis of the Dispersive Behaviour of Buried Elastic Periodic Structures

Year: 2025

Type: article

Abstract: Train-induced vibrations negatively impact residents in nearby buildings and are increasingly recognized as a public health concern. To address this issue, both effective mitigation measures and simplified design procedures are essential. This study investigates the mitigation pattern induced by an array of stiff inclusions employing a modal dispersive analysis. However, applying this type of analysis to a half-space medium presents challenges. To overcome this limitation, a wave-scattering methodology is proposed. This approach enables the computation of the mitigation pattern in a specific direction and at a particular location. It also highlights the conditioning energy content, thereby identifying the key frequency target for attenuation.

Source: Vibration

DOI: 10.3390/vibration8030047

Authors: Alexandre Castanheira-Pinto, Luís Godinho, Pedro Alves Costa, Aires Colaço

Institutions: Universidade do Porto, Institute of Research and Development in Structures and Construction, University of Coimbra

Language: English

Topic: Railway Engineering and Dynamics

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,930

Funder: Institute of Research and Development in Structures and Construction