6533b85ffe1ef96bd12c27cf
RESEARCH PRODUCT
An optimal dimensioning method of a green wall structure for noise pollution reduction
Bertrand DubusEmmanuel AttalEmmanuel AttalThérèse LebloisBernard Cretinsubject
Environmental EngineeringMaterials scienceReturn lossAcousticsNoise reductionTransmission lossesGeography Planning and Development0211 other engineering and technologies02 engineering and technology010501 environmental sciences01 natural sciencesNoise (electronics)[SPI.MAT]Engineering Sciences [physics]/Materials[SPI]Engineering Sciences [physics]2010 MSC: 00-01 99-00021108 energyNoise reductionDimensioning0105 earth and related environmental sciencesCivil and Structural Engineering[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]FoliageMulti-layerTransmission lossReturn lossesBuilding and ConstructionNoise reduction;Substrate;Foliage;Multi-layer;Return loss;Transmission lossTransfer matrixSubstrate (building)Transmission (telecommunications)Reflection (physics)SubstrateGreen wall[SPI.GCIV.EC]Engineering Sciences [physics]/Civil Engineering/Eco-conceptiondescription
International audience; This paper concern the optimization of a multilayered green wall structure including substrate and foliage in order to reduce as much as possible backward noise reflection and forward transmission from the wall. Each component involved in the wall structure is fully characterized experimentally to get its transfer matrix. Simulation demonstrated that foliage layer superimposed to substrate layer doesn’t affect the transmission losses but contributes greatly to the increase of return losses of the green wall structure. To achieve the best performances in terms of return and forward losses as well as frequency bandwidth, the methods of optimization are discussed including selection of types of materials, thicknesses, arrangement of layers as parameters.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-01-01 |