Optimization of an FCEV Air Exhaust System for Flow-Induced Noise Reduction and Cost Efficiency
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- 形態
- 価格
- 一般価格(税込):¥1,100 会員価格(税込):¥880
- 文献番号
- 20266338
- 文献・情報種別
- 学術講演会予稿集(秋)
No.162-26
- 掲載ページ
- 1-6(Total 6 p)
- 発行年月
- 2026年 10月
- 出版社
- (公社)自動車技術会
- 言語
- 英語
- イベント
- 2026年秋季大会
書誌事項
| 著者 | 1) Jong Yeol Lee, 2) Seung Tae Gong, 3) Jong Seung Won, 4) Hyun Soo Kim, 5) Joon Ho Jang |
|---|---|
| 著者(英) | 1) Jong Yeol Lee, 2) Seung Tae Gong, 3) Jong Seung Won, 4) Hyun Soo Kim, 5) Joon Ho Jang |
| 勤務先 | 1) Hyundai Motor, 2) Hyundai Motor, 3) Hyundai Motor, 4) SJG SEJONG, 5) SJG SEJONG |
| 勤務先(英) | 1) Hyundai Motor, 2) Hyundai Motor, 3) Hyundai Motor, 4) SJG SEJONG, 5) SJG SEJONG |
| 抄録(英) | This study investigates an optimized air exhaust silencer for a fuel cell electric vehicle to reduce flow-induced noise while improving cost efficiency. Vehicle tests identified discharge noise in the 1-3 kHz range as the primary NVH issue, originating from APC valve-induced turbulence and structural limitations of the production silencer. To mitigate this, the noise attenuation zone was relocated forward and a Helmholtz resonator-based concept was applied. Transmission loss analysis showed that the optimal design achieved up to 16.6 dB improvement in TL RMS, maintained approximately 90% gas-liquid separation, and reduced dependence on absorptive materials. 翻訳 |