Unsteady aerodynamic analysis of supersonic through-flow fan with vibrating blades under non-zero mean loading

T. Hanada, M. Namba

研究成果: ジャーナルへの寄稿学術誌査読

2 被引用数 (Scopus)

抄録

The double linearization concept is applied to a rotating annular cascade model operating at supersonic axial velocity. It is assumed that each blade vibrates with infinitesimal displacement amplitude under small but non-zero mean loading. Vibration modes normal and parallel to the blade chord are considered. Numerical results indicate that the mean loading effects play a crucial role on the aerodynamic instability of the blade motion. The bending motion can be unstable due to the presence of mean loading. Both the steady performance and the flutter boundary are highly sensitive to the blade camber. The bending motion instability is substantially influenced also by the chordwise component of the blade motion. Some numerical results compared with strip theory predictions demonstrate significant three-dimensional effects on the unsteady aerodynamic force under non-zero mean loading.

本文言語英語
ページ(範囲)709-750
ページ数42
ジャーナルJournal of Sound and Vibration
194
5
DOI
出版ステータス出版済み - 8月 1 1996

!!!All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 材料力学
  • 音響学および超音波学
  • 機械工学

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