Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Takeshi Okuzono"'
Autor:
Takeshi Okuzono
Publikováno v:
Applied Sciences, Vol 14, Iss 1, p 194 (2023)
Recently, to simulate sound propagation inside architectural spaces at high frequencies, the application of computationally expensive wave-based numerical methods to room acoustics simulation is increasing gradually. Generally, standard room acoustic
Externí odkaz:
https://doaj.org/article/a650ce925d0a4131a208a622be685a88
Publikováno v:
Acoustics, Vol 4, Iss 3, Pp 588-608 (2022)
Recently, dotted-art MPPs have been proposed in which a designed pattern is made with the holes. In such a case, the MPP becomes heterogeneous in general. However, existing theories used for the prediction of the absorption characteristics of MPPs as
Externí odkaz:
https://doaj.org/article/119932571f1544c3a47bc454bd372994
Publikováno v:
Acoustics, Vol 4, Iss 1, Pp 53-73 (2022)
Partition of unity finite element method with plane wave enrichment (PW-FEM) uses a shape function with a set of plane waves propagating in various directions. For room acoustic simulations in a frequency domain, PW-FEM can be an efficient wave-based
Externí odkaz:
https://doaj.org/article/95111c1ccbb244d3abbf2cb4b58e2fca
Autor:
Takeshi Okuzono, Takumi Yoshida
Publikováno v:
Frontiers in Built Environment, Vol 8 (2022)
Applicability of wave-based acoustics simulation methods in the time domain has increased markedly for performing room-acoustics simulation. They can incorporate sound absorber effects appropriately with a local-reaction frequency-dependent impedance
Externí odkaz:
https://doaj.org/article/d8bb484563dd42379a6bee6f4ef0f63c
Publikováno v:
Acoustics, Vol 3, Iss 3, Pp 473-484 (2021)
Micro-perforated panels (MPPs) are one of the most promising alternatives to conventional porous sound-absorbing materials. Traditionally, the theory of the sound absorption properties of MPPs is based on the assumption that MPPs are a homogeneous ma
Externí odkaz:
https://doaj.org/article/3a7749be3d4b4e94acc30f327c15d407
Finite element modeling for predicting sound insulation of fixed windows in a laboratory environment
Publikováno v:
Frontiers in Built Environment, Vol 8 (2022)
This paper presents discussion of the prediction capability of three numerical models using finite element method for predicting the sound reduction index (SRI) of fixed windows having different dimensions in a laboratory environment. The three numer
Externí odkaz:
https://doaj.org/article/6d150f6c4cb5464596a50eba060781b4
Publikováno v:
Acoustics, Vol 2, Iss 3, Pp 605-616 (2020)
In this study, we discuss the effect of the manufacturing accuracy of a microperforated panel (MPP) produced by 3D printers on acoustic properties through measured and calculated results as a pilot study. The manufacturing costs of MPPs have long bee
Externí odkaz:
https://doaj.org/article/66fa1ecdadba4ebabb08ab6db8201ee3
Publikováno v:
Applied Sciences, Vol 13, Iss 5, p 2832 (2023)
This paper presents a proposal of an efficient binaural room-acoustics auralization method, an essential goal of room-acoustics modeling. The method uses a massively parallel wave-based room-acoustics solver based on a dispersion-optimized explicit t
Externí odkaz:
https://doaj.org/article/eaa16ea2b391488280379d383b4c21e0
Publikováno v:
Buildings, Vol 12, Iss 2, p 105 (2022)
Wave-based acoustics simulation methods such as finite element method (FEM) are reliable computer simulation tools for predicting acoustics in architectural spaces. Nevertheless, their application to practical room acoustics design is difficult becau
Externí odkaz:
https://doaj.org/article/7753d9d418b742beb8eb7dfc47c6dfb5
Publikováno v:
Applied Sciences, Vol 10, Iss 11, p 3750 (2020)
This paper presents a proposal of a time domain room acoustic solver using novel fourth-order accurate explicit time domain finite element method (TD-FEM), with demonstration of its applicability for practical room acoustic problems. Although time do
Externí odkaz:
https://doaj.org/article/7b20ad7f4beb49d69f868183529dd8fa