Performance of Traffic Noise Barriers with Varying Cross-Section

Grubeša, Sanja; Domitrović, Hrvoje; Jambrošić, Kristijan

doi:10.7307/ptt.v23i3.119

Cited by 8 publications

(6 citation statements)

References 13 publications

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“…The equations can be solved by the least-squares method for Dirichlet and Neumann problems, the column exchanging algorithm [115] could be used in the case of the general boundary condition (7). There are several reported implementations and applications of the Schenck method [216,[232][233][234].…”

Section: The Schenck Methodsmentioning

confidence: 99%

The Boundary Element Method in Acoustics: A Survey

Kirkup

2019

Applied Sciences

108

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The boundary element method (BEM) in the context of acoustics or Helmholtz problems is reviewed in this paper. The basis of the BEM is initially developed for Laplace’s equation. The boundary integral equation formulations for the standard interior and exterior acoustic problems are stated and the boundary element methods are derived through collocation. It is shown how interior modal analysis can be carried out via the boundary element method. Further extensions in the BEM in acoustics are also reviewed, including half-space problems and modelling the acoustic field surrounding thin screens. Current research in linking the boundary element method to other methods in order to solve coupled vibro-acoustic and aero-acoustic problems and methods for solving inverse problems via the BEM are surveyed. Applications of the BEM in each area of acoustics are referenced. The computational complexity of the problem is considered and methods for improving its general efficiency are reviewed. The significant maintenance issues of the standard exterior acoustic solution are considered, in particular the weighting parameter in combined formulations such as Burton and Miller’s equation. The commonality of the integral operators across formulations and hence the potential for development of a software library approach is emphasised.

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Section: The Schenck Methodsmentioning

confidence: 99%

The Boundary Element Method in Acoustics: A Survey

Kirkup

2019

Applied Sciences

108

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“…In terms of traffic noise pollution, reducing the impact of traffic noise on both people and the environments can be achieved by planning and integrating the traffic routes outside the residential areas. In case of existing traffic routes within the residential areas, a good solution for reducing the noise levels is noise barriers [1][2][3]. Here we note that the noise barrier efficiency depends principally on their design.…”

Section: A Traditional Approach: Noise Barriersmentioning

confidence: 98%

Innovative Approaches to Noise Reduction

Suhanek¹,

Grubeša²

2021

Noise and Environment

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Nowadays, each individual is exposed to noise on a daily basis, and noise is often referred as in literature as a plague of modern society. Noise pollution is often overlooked when compared to other environmental pollutions (e.g. air, water, soil pollution). However, same as the all aforementioned pollutions, noise exposure has an accumulating character, meaning that the harmful effect of noise is detected only after a long period of time. Long exposure to noise pollution can be displayed as a bad mood, fatigue, insomnia, headache and loss of concentration, which causes reduced work ability and ultimately permanent hearing impairment. The goal of this chapter is to present two different approaches (traditional and contemporary) in noise reductions. The aim of both approaches is to link objective and subjective acoustic parameters, in order to plan future urban infrastructures while keeping in mind the existing acoustic environments, and to create and implement new solutions that will design, preserve and improve acoustic environments. Thus, we can conclude this chapter will be oriented towards human health and overall quality of life in terms of noise reduction.

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“…In general, the efficiency of noise reduction is calculated using the Insertion Loss (IL) parameter. This parameter is mostly dependent on the noise barrier height, and to a smaller extent on the crosssectional shape and the shape of the noise barrier top [2][3][4]. Therefore, most of the nowadays research focuses on the optimization of the barrier's Insertion Loss parameter [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Combined acoustical and economical noise barrier optimization using genetic algorithms

Grubeša

Suhanek

Đurek

et al. 2019

JCE

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Combined acoustical and economical noise barrier optimization using genetic algorithms This paper studies noise barrier optimization using the Boundary Element Method (BEM) as a numerical technique and Genetic Algorithms (GA). Noise barriers are optimised according to acoustical, technological and economical properties so as to obtain an optimum noise barrier. In order to optimise acoustical and economical properties of noise barriers, the use is made of a genetic algorithm that forms a noise barrier out of given shapes. A new noise barrier evaluation parameter, named the noise barrier cost parameter (K e), is also defined in the paper. Using the genetic algorithm and the noise barrier cost parameter (K e), it is easy to create, develop and construct an appropriate noise barrier.

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Performance of Traffic Noise Barriers with Varying Cross-Section

Abstract: ABSTRACT

Cited by 8 publications

References 13 publications

The Boundary Element Method in Acoustics: A Survey

The Boundary Element Method in Acoustics: A Survey

Innovative Approaches to Noise Reduction

Combined acoustical and economical noise barrier optimization using genetic algorithms

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