Results 1 to 10 of about 52,293 (215)
Recent Developments of Noise Attenuation Using Acoustic Barriers for a Specific Edge Geometry
Computation, 2021 The aim of this research is to provide a better prediction for noise attenuation using thin rigid barriers. In particular, the paper presents an analysis on four methods of computing the noise attenuation using acoustic barriers: Maekawa-Tatge ...
Mihai Bugaru +2 more
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Aerodynamic impacts of high-speed trains on city-oriented noise barriers: A moving model experiment
Alexandria Engineering Journal, 2023 Two types of city-oriented noise barriers, i.e., fully-enclosed noise barrier and bilateral inverted l-shaped semi-enclosed noise barrier, have been gradually adopted in city centres along high-speed railways to reduce noise pollution.
Yikang Liu +6 more
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Vibration Mitigation of Rail Noise Barriers by Hysteretic Absorbers [PDF]
Journal of Applied and Computational Mechanics, 2021 A strategy is proposed to mitigate the noise barrier vibrations due to the train passage in high speed lines employing a hysteretic vibration absorber. The barrier is modelled as a generalized single degree of freedom system; the absorber consists of a ...
Michela Basili +3 more
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A Simple Method to Estimate the In Situ Performance of Noise Barriers
Applied Sciences, 2022 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 in order to quantify the sound ...
Javier Redondo +3 more
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Contextual Design of Road Traffic Noise Reducing Devices
Civil and Environmental Engineering, 2022 The authors present the first ideas of contextual design (CD) of noise barriers (NB), which integrates acoustic, architectural, environmental, and economic aspects of a holistic approach to the design of these engineering structures.
Trojanová Mária +2 more
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Experimental Analysis and Simulation of a Porous Absorbing Layer for Noise Barriers
Applied Sciences, 2023 Noise barriers are common noise mitigation measures usually implemented near roads or railways, with proven efficiency. This work presents a study of a porous concrete material incorporating expanded clay as aggregate, to be used on the sound-absorption ...
Laura Sousa +6 more
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Particle Swarm Optimization of Resonant Sonic Crystals Noise Barriers
IEEE Access, 2023 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 beyond the behavior of materials found
David Ramirez-Solana +3 more
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Noise barriers efficiency dependence on their shape and geometry
Mokslas: Lietuvos Ateitis, 2023 The work examines noise barriers and evaluates their effectiveness when changing their geometry and shape. Noise barriers are one of the most effective and widely used methods of reducing noise caused by road and railway transport.
Edgaras Strazdas, Tomas Januševičius
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Research and Application of Noise Barriers in Highway Construction [PDF]
E3S Web of Conferences, 2021 In recent years, with the rapid development of highways, traffic noise has become a risk source in the environment, and noise control has attracted wide attention.
Sun Lijun +4 more
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Metamaterials for Acoustic Noise Filtering and Energy Harvesting
Sensors, 2023 Artificial methods for noise filtering are required for the twenty-first century’s Factory vision 4.0. From various perspectives of physics, noise filtering capabilities could be addressed in multiple ways.
Fariha Mir +2 more
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