ON THE FREQUENCY EFFECT OF TURBULENCE FOR TORSIONAL FLUTTER
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- MATSUMOTO Masaru
- THE JAPAN SOCIETY OF CIVIL ENGINEERS
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- SHIRAISHI Naruhito
- THE JAPAN SOCIETY OF CIVIL ENGINEERS
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- YUKAWA Masayuki
- THE JAPAN SOCIETY OF CIVIL ENGINEERS
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- ITO Yuichi
- THE JAPAN SOCIETY OF CIVIL ENGINEERS
Bibliographic Information
- Other Title
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- ねじれフラッターに対する乱れの周波数効果に関する考察
- ネジレ フラッター ニ タイスル ミダレ ノ シュウハスウ コウカ ニ カンス
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Abstract
In this study, the effects of turbulence on “Torsional Flutter” of 2-D H-section cylinders with some slenderness ratios (3≤B/D<10, B: chord length, D: height of section) were experimentaly investigated from the frequency effect of turbulence point of view in smooth flow, grid-turbulent flow and a sinusoidal fluctuating flow. In conclusion it was clarified that the higher frequency fluctuating components of turbulence amplifies the entrainment effect of separated shear layer around comparatively bluff body such as B/D<5.5, on the other hand, comparatively low frequency fluctuating components of turbulence which is the specified frequency region subject to “shear layer instability enhancement frequency region”, can significantly affect torsional flutter of comparatively slender body such as B/D≥5.5.
Journal
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- Doboku Gakkai Ronbunshu
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Doboku Gakkai Ronbunshu 1990 (416), 235-244, 1990-04-20
Japan Society of Civil Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390282680285620864
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- NII Article ID
- 130003799858
- 40004507154
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- NII Book ID
- AN10014020
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- ISSN
- 18827187
- 02897806
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- NDL BIB ID
- 3663899
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed