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Listar por palabra clave "Noise barriers"

Mostrando ítems 1-10 de 10

A Simple Method to Estimate the In Situ Performance of Noise Barriers

Redondo, Javier; Gaja-Silvestre, Pau; Godinho, Luis; Amado-Mendes, Paulo (MDPI AG, 2022-07)

[EN] Noise barriers are usually classified attending to their intrinsic acoustic characteristics. This is standardized by the European Standards EN 1793, parts 2 and 6, in which a single parameter, DLR or DLSI, is defined ...
Analytical model to predict the effect of a finite impedance surface on the propagation properties of 2D Sonic Crystals

Romero García, Vicente; Sánchez Pérez, Juan Vicente; García Raffi, Luis Miguel (IOP Publishing: Hybrid Open Access, 2011)

The use of sonic crystals (SCs) as environmental noise barriers has certain advantages from both the acoustical and the constructive points of view with regard to conventional ones. However, the interaction between the SCs ...
Aplicaciones del software BEM (Boundary Element) para simulación de barreras acústicas

Guo, Xiuyuan (Universitat Politècnica de València, 2017-12-12)

The student will have to develop a software to simulate the behaviour of an acoustic barrier. In a second step he will have to compare the results obtained with this program with others simulators (FDTD, FEM). Finally the ...
Design and validation of a comprehensive model to characterize sonic crystals acoustic screens in the low frequency regime

Onrubia-Fontangordo, Lucas; Bravo, Jose MarÍa; Castiñeira-Ibáñez, Sergio; Sánchez Pérez, Juan Vicente (Elsevier, 2024-09-05)

[EN] In this paper, we present a comprehensive model to obtain numerical/experimental results on the acoustic behaviour of sonic crystals in the low frequency range (up to 1700 Hz). We have focused our attention on this ...
Diseño de pantallas acústicas para reducir costes de fabricación

Segura Mateu, Francisco (Universitat Politècnica de València, 2014-02-24)

El ruido es uno de los problemas medioambientales que mayor preocupación ha generado en los países de la Unión Europea en los últimos años. En consonancia, se han aprobado diversas normativas y legislaciones para intentar ...
Identificación y Análisis subjetivo de las molestias del Ruido Acústico provocado por trenes

Borrull Callejas, Tania (Universitat Politècnica de València, 2017-11-07)

El ferrocarril es uno de los medios de transporte más utilizados para la movilización de personas, además, el caso concreto de Valencia se ha de sumar su importancia turística. En el presente estudio se ha buscado ...
Improving Insertion Loss of Sonic Crystal Active Noise Barrier by Reinforcement Learning and Finite Difference Time Domain Simulations

Ramírez-Solana, David; Galiana-Nieves, Jaime; Redondo, Javier; Mangini, Agostino Marcello; Fanti, Maria Pia (Institute of Electrical and Electronics Engineers, 2024-05)

[EN] Sonic crystal noise barriers (SCNB) have emerged as a promising solution for mitigating traffic noise pollution. These barriers utilize periodic structures to selectively reflect acoustic waves at specific target ...
Noise control by sonic crystal barriers made of recycled materials

Sánchez-Dehesa Moreno-Cid, José; García Chocano, Víctor Manuel; Torrent Martí, Daniel; Cervera Moreno, Francisco Salvador; Cabrera García, Suitberto; Simon, Francisco (Acoustical Society of America, 2011-03)

A systematic study of noise barriers based on sonic crystals made of cylinders that use recycled materials like absorbing component is reported here. The barriers consist of only three rows of perforated metal shells filled ...
Nuevas pantallas acústicas a partir de materiales reciclados

Merino Porta, Eva (Universitat Politècnica de València, 2011-03-14)

Estudio sobre pantallas acústicas más ligeras y adaptables a diferentes medios y materiales reciclados sustitutivos de otros más contaminantes. Study on noise barriers lighter and adaptable to different media and recycled ...
Particle Swarm Optimization of Resonant Sonic Crystals Noise Barriers

Ramírez-Solana, David; Redondo, Javier; Mangini, Agostino Marcello; Fanti, Maria Pia (Institute of Electrical and Electronics Engineers, 2023-04-17)

[EN] The study of technological materials made by meticulously arranging acoustic elements has received a lot of attention over the past three decades with the goal of generating improved acoustic properties, often going ...