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Applied Sciences
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Advances in Architectural Acoustics and Vibration
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Advances in Architectural Acoustics and Vibration

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Acoustics and Vibrations".

Deadline for manuscript submissions: 20 July 2024 | Viewed by 1622

Special Issue Editor

Dr. Sanjay Kumar

E-Mail Website
Guest Editor
Durham School of Architectural Engineering and Construction, University of Nebraska–Lincoln, Scott Campus, Omaha, NE 68182-0176, USA
Interests: acoustics; building acoustics; noise measurement; acoustic metamaterials; sound absorber designs
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are delighted to extend our warmest invitation to contribute to a Special Issue of Applied Sciences focusing on "Advances in Architectural Acoustics and Vibration". This Special Issue aims to highlight the latest advancements, breakthroughs, and innovative research in architectural acoustics and vibration control.

Architectural acoustics and vibration control are pivotal in shaping the built environment to provide optimal acoustic performance and enhance occupant comfort. As urbanization continues to thrive and noise pollution becomes a prominent issue, the importance of understanding and implementing cutting-edge solutions in this field has never been greater.

This Special Issue intends to bring together leading researchers, engineers, architects, and acousticians to share their valuable insights, expertise, and research findings. We seek to cover a wide range of topics related to architectural acoustics and vibration control, including but not limited to:

  • Computational simulation and modeling techniques for predicting acoustic behavior.
  • Psychoacoustics and its influence on architectural design.
  • Sustainable architectural acoustics and environmentally friendly materials.
  • Innovative acoustic materials and treatments for optimizing acoustic performance.
  • Noise reduction strategies in various architectural spaces.
  • Vibration analysis and structural dynamics in building design.
  • Human perception and response to vibrations in different environments.
  • Case studies of successful acoustic design in real-world architectural projects.

Submissions are welcome in the form of original research articles, reviews, case studies, and technical notes that contribute to advancing knowledge in this field. All manuscripts will undergo a rigorous peer-review process by experts in the subject area to ensure the highest quality of published work.

We believe this Special Issue will provide valuable insights and foster new collaborations in architectural acoustics and vibration control. We look forward to receiving your contributions and playing a part in advancing the understanding and application of these critical disciplines in modern architecture.

I appreciate your consideration, and I look forward to receiving your valuable contributions to this Special Issue.

Dr. Sanjay Kumar
Guest Editor

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

  • architectural acoustics
  • vibration control
  • sound propagation
  • psychoacoustics
  • noise reduction
  • sustainable acoustic design
  • computational simulation
  • acoustic materials
  • soundscapes
  • human perception of sound
  • structural dynamics
  • building resilience
  • acoustic modeling
  • environmental impact of acoustics
  • passive acoustic design
  • innovative vibration mitigation
  • acoustic comfort
  • concert hall acoustics
  • open office acoustics
  • educational spaces acoustics

Published Papers (2 papers)

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Research

13 pages, 2719 KiB  
Article
Tunable Perforated Panel Sound Absorbers for Variable Acoustics Room Design
by Jesús Carbajo, Pedro Poveda-Martínez, Luís Godinho, Andreia Pereira, Anna Gaspar, Paulo Amado-Mendes, Diogo Mateus and Jaime Ramis
Appl. Sci. 2024, 14(5), 2094; https://doi.org/10.3390/app14052094 - 02 Mar 2024
Viewed by 515
Abstract
Variable acoustics systems are promising engineering developments for multi-purpose rooms and workspaces in many buildings. However, due to space requirements associated with most of the tuning devices used for that purpose, these solutions are hardly adopted in practice. In this work, two innovative [...] Read more.
Variable acoustics systems are promising engineering developments for multi-purpose rooms and workspaces in many buildings. However, due to space requirements associated with most of the tuning devices used for that purpose, these solutions are hardly adopted in practice. In this work, two innovative tunable sound absorbers that cope with this drawback are proposed, one consisting of rotating perforated panels and the other being a panel with an iris-type aperture. Compared with conventional perforated panel sound absorbers, the designed solutions yield a variable open area ratio system, whose configuration allows tuning the absorption bandwidth without misusing space. To assess their sound absorption coefficient, impedance tube experiments were carried out following the standardized method described in ISO 10534-2 over specimens fabricated for this purpose using laser cutting and additive manufacturing technology. The results not only show their good sound absorption performance but also highlight their tuning capabilities. Complementarily, a model based on the ray tracing method was developed to evaluate the performance of these solutions in a case study room, for different occupancy levels, with the results supporting the previous assertions and revealing the improved intelligibility features when used in such scenarios. The proposed solutions, together with the prediction model, provide a feasible approach for the design and development of tunable sound absorbers in variable room acoustics. Full article
(This article belongs to the Special Issue Advances in Architectural Acoustics and Vibration)
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18 pages, 4132 KiB  
Article
Comparison of Different Omnidirectional Sound Sources with the Validation of Coupled Speakers as a Measurement Source for Room Acoustics
by Bartlomiej Chojnacki, Maria Brzóska and Joanna A. Fijałkowska
Appl. Sci. 2023, 13(24), 13058; https://doi.org/10.3390/app132413058 - 07 Dec 2023
Viewed by 762
Abstract
Omnidirectional sources used in room acoustics usually take the form of multi-speaker sources. Few alternatives for the most commonly used dodecahedral sound source have been derived recently. The project aimed to measure room acoustic parameters using three different sound sources: a dodecahedron, a [...] Read more.
Omnidirectional sources used in room acoustics usually take the form of multi-speaker sources. Few alternatives for the most commonly used dodecahedral sound source have been derived recently. The project aimed to measure room acoustic parameters using three different sound sources: a dodecahedron, a cube, and a new source of two coupled loudspeakers. The measurements were made by rotating the sources every 15 degrees. The differences in the EDT, T30, D50, and C80 parameters in the function of the rotation angle of the sources were analyzed. Statistical analysis was carried out to examine the sensitivity of the measured parameters’ JND (just a noticeable difference) on the source’s rotation angle. This presentation will show the results and analysis of measurements showing the influence of the used source on obtained parameters and the validation of coupled speakers’ use. A comprehensive discussion of the results obtained with different sources (coupled, dodecahedral, cubic) will be provided. The results confirmed using the coupled speakers as an alternative for omnidirectional sound source in the range of 250–2000 Hz. Full article
(This article belongs to the Special Issue Advances in Architectural Acoustics and Vibration)
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