Sonic Crystal Noise Barrier with Resonant Cavities for Train Brake Noise Mitigation
Source abstract
Abstract
In an experimental investigation, the development of sonic crystal noise barriers (SCNBs) is undertaken to address the issue of train brake noise (TBN), focusing on the use of local resonances in scatterers of sonic crystals. Recent research has shown that the inclusion of cavity resonators in the crystal scatterers allows for the modification of their insulating properties. In those works, it has been demonstrated that this interaction can be used to build highly insulating structures. The study proposes an SCNB design that includes a resonant cavity specifically to mitigate TBN and validates this design through experimental measures. The experiments confirm the enhanced sound insulation capabilities of SCNBs, compare them to the conventional noise barriers ones and demonstrate the applicability and effectiveness of the proposed design in real-world scenarios.
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Research context
OpenAlex topics: Brake Systems and Friction Analysis · Railway Engineering and Dynamics · Electrical Contact Performance and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Instituto de Investigación para la Gestión Integrada de Zonas Costeras, Universitat Politècnica de València, Campus de Gandía. C. Paranimf, 1, 46730 Gandía, Spain
Dipartimento di Ingegneria Elettrica e dell’Informazione, Politecnico di Bari, Via Orabona, 4, 70125 Bari, Italy
Department of Engineering and Geology (INGEO), D’Annunzio University of Chieti—Pescara, Viale Pindaro, 42, 65127 Pescara, Italy
ArCoD Dipartimento Architettura Costruzione e Design, Politecnico di Bari, Via Orabona, 4, 70125 Bari, Italy
Funding
Spanish Ministry of Economy and Innovation (MINECO) · European Union FEDER
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