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Acoustic design method of ship's cabin based on geometrical acoustics
Zhongguo Jianchuan Yanjiu, 2017 In light of the question of how to select the best noise control position and measures in the large noise transmission path of the cabins of a ship, based on the acoustic ray-tracing method in the theory of geometrical acoustics, and by considering the ...
FENG Aijing, WEI Qiang, ZHANG Dahai
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Acoustic geometric-phase meta-array [PDF]
New Journal of Physics, 2021 Abstract Metasurfaces based on geometric phase acquired from the conversion of the optical spin states provide a robust control over the wavefront of light, and have been widely employed for construction of various types of functional metasurface devices.
Bingyi Liu +5 more
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An archaeoacoustic study on shape: the case study of the Iffland Theatre’s history (1802–1817)
Acta Acustica, 2023 Previous studies have discussed six pre-Sabine quantifiable guidelines employed in room acoustic design: voice directivity, audience rake, “echo theory”, stage acoustics, reverberation, and length, width, and height ratios.
Postma Barteld N.J., Katz Brian F.G.
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Numerical geometric acoustics [PDF]
The Journal of the Acoustical Society of America, 2020 We present a new approach to offline room acoustic modeling and simulation based on solving the eikonal equation, a nonlinear partial differential equation describing the arrival times of a high-frequency wavefront. We call the approach numerical geometric acoustics, since it combines some of the advantages of both numerical acoustics, where the ...
Samuel F. Potter +2 more
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An Iterative Ray Tracing Algorithm to Increase Simulation Speed While Maintaining Overall Precision
Acoustics, 2023 Ray tracing is a frequently used method for acoustic simulations, valued for its calculation speed and ease of use. Although it is fast, there are no fully ray tracing-based real-time simulation methods or engines.
Hanna Autio +2 more
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An Archaeoacoustics Analysis of Cistercian Architecture: The Case of the Beaulieu Abbey
Acoustics, 2021 The Cistercian order is of acoustic interest because previous research has hypothesized that Cistercian architectural structures were designed for longer reverberation times in order to reinforce Gregorian chants.
Sebastian Duran +2 more
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A filter representation of diffraction at infinite and finite wedges [PDF]
JASA Express Letters, 2022 Diffraction of sound occurs at sound barriers, building and room corners in urban and indoor environments. Here, a unified parametric filter representation of the singly diffracted field at arbitrary wedges is suggested, connecting existing asymptotic ...
Stephan D. Ewert
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Acoustics, 2020 Computer modeling in acoustics allows for the prediction of acoustical defects and the evaluation of potential remediations. In this article, computer modeling is applied to the case of a barrel-vaulted sanctuary whose architectural design and ...
Heather Lai, Brian Hamilton
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Ultrasonic monitoring of the VVER-1000 FA form change [PDF]
Nuclear Energy and Technology, 2022 A procedure has been developed to determine the geometrical parameters of fuel assemblies (FA) by an ultrasonic pulse-echo technique used for all types of light-water reactor FAs. The measurement of geometrical parameters is achieved through the pairwise
Aleksandra V. Voronina +2 more
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Acoustic investigation on nozzles with different types of six lobed chevrons [PDF]
INCAS Bulletin, 2013 This paper deals with a few aspects of the notion of chevron and the process that helps reducing the noise pollution. Based on the gas dynamic and geometrical parameters of a single flow jet engine a model of CFD data processing is made.
Grigore CICAN, Daniel-Eugeniu CRUNTEANU
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