2413 舶用過給機のタービン入口全圧が翼振動に及ぼす影響

• 岩城 史典

  石播

• 三堀 健

  石播

• 田口 英俊

  石播

• MECH Andrew

  ローズハルマン工大

• 小幡 正一

  金沢工大

書誌事項

タイトル別名

• Effect of Turbine Inlet Pressure Fluctuation on Blade Vibration for a Marine Turbocharger

抄録

One of the important goals in the design of a turbocharger is to reduce the resonance stress of the turbine blade. The resonance stress is influenced greatly by fluctuations of total pressure at the inlet of the blade. In this study, we have compared two kinds of mixed-flow type casings, Type-α and Type-β, that differ only in tongue geometry. Because of this difference, each casing creates a different pressure distribution at the blade inlet. Total pressure was measured at various circumferential locations in the two turbine casings. Then Fourier analysis was used to calculate the excitation force component caused by the total pressure fluctuations. Also, resonance stress was measured for the turbine blade for each casing. The experiments showed that the Type-β casing experienced higher total pressure fluctuations and produced higher blade resonance stress than the Type-α casing.

収録刊行物

• 年次大会講演論文集

  年次大会講演論文集 2003.7 (0), 269-270, 2003

  一般社団法人 日本機械学会

キーワード

• Blade
• Flow Induced Vibration
• Fluid Machinery
• Fluid Force
• Blade Vibration

詳細情報

• CRID: 1390001206061424640
• NII論文ID: 110002526160
• DOI: 10.1299/jsmemecjo.2003.7.0_269
• ISSN: 24331325
• Web Site: https://www.jstage.jst.go.jp/article/jsmemecjo/2003.7/0/2003.7_269/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可