Investigation on whine noise induced by turbine blades for a medium-duty diesel engine
- 提供方法
- 本サイト上にてダウンロード・閲覧可
- 形態
- 価格
- 一般価格(税込):¥1,100 会員価格(税込):¥880
- 文献番号
- 20025331
- 文献・情報種別
- 学術講演会予稿集(春)
No.69-02
- 掲載ページ
- 9-12(Total 4 p)
- 発行年月
- 2002年 7月
- 出版社
- (公社)自動車技術会
- 言語
- 英語
書誌事項
| カテゴリ(英) | NVHⅡ 翻訳 |
|---|---|
| 著者(英) | 1) Sungbae Choi, 2) Jaemin Jin, 3) Changwook Lee |
| 勤務先(英) | 1) Hyundai Motor Company, 2) Hyundai Motor Company, 3) Hyundai Motor Company |
| 抄録(英) | This paper presents an experimental approach for investigating the noise characteristics of a turbocharger of a medium-duty diesel engine ? the whine noise induced by turbine blade rotation at around low idle, and suggests a way to eliminate the audibility of the whine noise radiated from turbine housing outlet. This whine noise makes passengers or outside walkers nervous unless the noise is enough to be absorbed by mufflers. Since there is little difference in noise radiated from turbine outlet between firing and motored conditions of an engine at around low idle, the whine noise is investigated under the motored condition. The noise is examined to several physical parameters ? turbine housing dimensions, turbocharger speed, non-rotation of turbine blades, and so on. From the test results, the study suggests a practical combination of two parameters to eliminate the audibility of the noise, where the whine noise component is lower by over 15dBA than overall noise level. 翻訳 |