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Applied Sciences
Special Issues
New Challenges in Building Acoustics
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New Challenges in Building Acoustics

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 4748

Special Issue Editors

Dr. Yong Hee Kim

E-Mail Website
Guest Editor
Department of Architectural Engineering, Youngsan University, Yangsan 50510, Korea
Interests: architectural acoustics; building acoustics; room acoustics; acoustical design; public space acoustics; acoustic scale modeling
Dr. Jun Oh Yeon

E-Mail Website
Guest Editor
Korea Marine Equipment Research Institute, Pusan 49111, Korea
Interests: floor impact noise; building acoustics; sound insulation; acoustic characterization; environmental noise

Special Issue Information

Dear Colleagues,

Modern building acoustics have advanced over the past 150 years since the field was founded by W. C. Sabine. It developed mainly according to modern science and technology based on the Third Industrial Revolution. However, we are currently facing the Fourth Industrial Revolution in smart cities, with a fusion of artificial intelligence, robotics, the Internet of Things, genetic engineering and more. Furthermore, rapid urbanization with dense populations and high-speed transportation increases complex noise sources both indoors and outdoors of buildings. On the other hand, the demand for better acoustic built environments is also increasing, along with the improved quality of life.

In this context, new challenges including the convergence of cutting-edge technologies and multi-disciplinary research are required to solve difficult problems and to promote acoustical comfort in building acoustics. This Special Issue focuses on all innovative aspects of building acoustics.

All contributions on building acoustics regarding recent experiences, case studies, or scientific evidence obtained through both methodological and technical approaches will be considered. This collection of papers aims to create a background of good practices as well as a reference for municipalities and anyone studying future building acoustics.

Dr. Yong Hee Kim
Dr. Jun Oh Yeon
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • building acoustics
  • architectural acoustics
  • acoustical modeling
  • acoustical measurement
  • sound source identification
  • noise reduction devices
  • vibration control
  • room acoustic design
  • indoor soundscape
  • acoustic comfort of residents

Published Papers (2 papers)

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Research

30 pages, 10257 KiB  
Article
The Potential of Focusing Acoustic Retroreflectors for Architectural Surface Treatment
by Densil Cabrera, Shuai Lu, Jonothan Holmes and Manuj Yadav
Appl. Sci. 2023, 13(3), 1547; https://doi.org/10.3390/app13031547 - 25 Jan 2023
Cited by 2 | Viewed by 2343
Abstract
How much sound can a building surface reflect to a source, the location of which is not exactly known? This paper considers this question particularly for a planar surface acting as an array of retroreflectors, or of focusing retroreflectors. The question is investigated [...] Read more.
How much sound can a building surface reflect to a source, the location of which is not exactly known? This paper considers this question particularly for a planar surface acting as an array of retroreflectors, or of focusing retroreflectors. The question is investigated using finite-difference time-domain acoustic simulation, using ideal retroreflective patches achieved by space-reversal, and focusing achieved by delays. Extensive (7.2 × 7.2 m) and local (2.4 × 2.4 m) ideal planar reflector arrays were investigated at distances of 1.5 to 4 m from sources that were within a 2.4 × 2.4 m square plane. Patch sizes ranged from 0.3 m squares to the full reflector size. Physically realizable non-ideal focusing retroreflectors based on parabolic trihedra were also investigated. With sufficiently large patches, ideal focusing retroreflector arrays consistently outperform non-focusing retroreflector arrays. A large focusing retroreflector array has the potential to provide retroreflected energy levels (speech and A-weighted) from the first reflection to a source at 2 m distance comparable to the diffuse field energy level of acoustically supportive reverberant rooms. A small focusing retroreflector array returns less sound, but still much more than a single reflection from an equivalent specularly reflecting surface. Results from parabolic trihedra demonstrate that retroreflected energy levels similar to those from ideal surfaces can be achieved by architectural form. Challenges in translating these concepts to practical design solutions are discussed. Full article
(This article belongs to the Special Issue New Challenges in Building Acoustics)
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16 pages, 2566 KiB  
Article
Prediction of Vibration-Mode-Induced Noise of Structure–Acoustic Coupled Systems
by Suhong Kim, Jaeseung Hwang, Jongkwan Ryu and Minjeong Song
Appl. Sci. 2022, 12(20), 10496; https://doi.org/10.3390/app122010496 - 18 Oct 2022
Cited by 2 | Viewed by 1424
Abstract
The exposure of a structure to an acoustic domain induces a sound field owing to the interaction of the air-fluid and structure at the acoustic–structure boundaries. It is difficult to predict sound pressure level through vibration mode, due to the acoustic mode of [...] Read more.
The exposure of a structure to an acoustic domain induces a sound field owing to the interaction of the air-fluid and structure at the acoustic–structure boundaries. It is difficult to predict sound pressure level through vibration mode, due to the acoustic mode of the coupling effect between vibration and sound in addition to the acoustic mode induced by vibration mode generated by external force. In this study, the acoustic mode induced by structural vibration modes were predicted through a numerical analysis. A finite element model of a reverberation chamber with a shell at one side was constructed, and modal parameters of the vibration and acoustic modes were evaluated through an eigenvalue analysis. In addition, the sound pressure generated by impact loading of the shell were predicted by vibration mode through a time-domain structure–acoustic coupling analysis. The vibration and acoustic modal responses were identified from the measured responses, and the acoustic mode associated with a specific vibration mode was examined. The results showed that the acoustic mode from the coupling effect was verified, and sound pressure prediction from vibration mode was possible if considered as the coupling effect. The proposed approach can be applied to predict the heavy-weight floor impact sound from the vibration of slabs in apartments. Full article
(This article belongs to the Special Issue New Challenges in Building Acoustics)
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