Finite-difference time-domain analysis of structure-borne sound using a plate model based on the Kirchhoff-Love plate theory
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- Asakura Takumi
- Institute of Technology, SHIMIZU Corporation
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- Ishizuka Takashi
- Institute of Technology, SHIMIZU Corporation
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- Miyajima Tohru
- Institute of Technology, SHIMIZU Corporation
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- Toyoda Masahiro
- Faculty of Environmental and Urban Engineering, Kansai University
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- Sakamoto Shinichi
- Institute of Industrial Science, The University of Tokyo
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抄録
A vibroacoustic numerical method employing an implicit finite-difference time-domain (FDTD) method, in which the target architecture is modeled as a composition of two-dimensional plate elements, is proposed in this paper. While structure-borne sound is a difficult phenomenon to predict owing to the complexity of the vibration mechanism on the building structure, wave-based numerical techniques may enable its accurate prediction by virtue of their flexibility from the viewpoint of modeling the object. However, with the current PC performance, prediction for a large-scale problem is still difficult. To solve such a problem, we model the target structure as a composition of plate elements to reduce the simulated field to two dimensions, in contrast to the discretization of the field into three-dimensional solid elements. This results in memorysaving and faster simulation. In this paper, the basic theory of vibroacoustic analysis for a model with plate elements is described, and the results of a case study for a box-type structure are discussed.
収録刊行物
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- Acoustical Science and Technology
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Acoustical Science and Technology 35 (3), 127-138, 2014
一般社団法人 日本音響学会
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詳細情報 詳細情報について
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- CRID
- 1390282680065633664
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- NII論文ID
- 130004137804
- 40020051163
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- NII書誌ID
- AA11501808
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- ISSN
- 13475177
- 03694232
- 13463969
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- NDL書誌ID
- 025427565
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可