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クリハラ カイ
Kurihara Kai 栗原 海 所属 神奈川大学 工学部 機械工学科 職種 助教 |
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| 発表年月日 | 2023/08/21 |
| 発表テーマ | Fundamental study on directivity of acoustic radiation from tire by using ray tracing method |
| 発表学会名 | Internoise 2023 |
| 学会区分 | 国際学会 |
| 発表形式 | 口頭（一般） |
| 単独共同区分 | 共同 |
| 国名 | 日本 |
| 開催地名 | Chiba-shi |
| 開催期間 | 2023/08/20～2023/08/23 |
| 発表者・共同発表者 | Kai Kurihara, Yoshihiro Shirahashi, Ryota Okamoto and Toru Yamazaki |
| 概要 | The ray tracing method is a commonly used method for analysing sound field in buildings and is classified as a geometric acoustic theory. It traces the reflection and propagation paths of a number of sound rays radiated from a sound source. Originally, the ray tracing method does not take frequency response into account, but in this study, the ray tracing method is modified so that frequency response can be calculated in order to apply the ray tracing method to general sound field analysis other than buildings. For this purpose, the propagation distance of each sound ray and the phase change due to reflection are considered, and the interference of each sound ray at the receiver is calculated. To verify the effectiveness of the proposed method, it is applied to the acoustic radiation of tire noise as an example. In addition, the directivity of the tire noise acoustic radiation is investigated on the basis of the ray tracing method. |
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