Multimode flutter analysis of transonic fan using FSI simulation

Atsushi Tateishi, Toshinori Watanabe, Takehiro Himeno, Chihiro Inoue

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

7 被引用数 (Scopus)

抄録

Fully coupled steady fluid-solid interaction (FSI) and flutter simulations were conducted on a NASA Rotor 67 transonic experimental fan to demonstrate the capability of application for capturing various aeroelastic phenomena in turbomachinery. The effect of blade deformation on the aerodynamic performance was investigated by steady FSI. Aeroelastic modes were determined using the modal identification technique for the vibration of the cascade. The proposed identification method successfully estimated aeroelastic modes without significant uncertainty. Aeroelastic eigenvalues were localized around the structural modes in vacuum forming the "mode family", and there was negligible change in their frequency. The calculated aerodynamic coupling between the structural modes was small. Based on the reconstructed local unsteady aerodynamic force, the major damping sources in the 1F mode family were determined to be the shock motion and supersonic region near the leading edge. From these results, it was confirmed that the developed FSI method was applicable to the analysis of unsteady characteristics of blades in multimode oscillation.

本文言語英語
ホスト出版物のタイトルStructures and Dynamics
出版社American Society of Mechanical Engineers (ASME)
ISBN(電子版)9780791845776
DOI
出版ステータス出版済み - 1 1 2014
外部発表はい
イベントASME Turbo Expo 2014: Turbine Technical Conference and Exposition, GT 2014 - Dusseldorf, ドイツ
継続期間: 6 16 20146 20 2014

出版物シリーズ

名前Proceedings of the ASME Turbo Expo
7B

その他

その他ASME Turbo Expo 2014: Turbine Technical Conference and Exposition, GT 2014
Countryドイツ
CityDusseldorf
Period6/16/146/20/14

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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