Water Tunnel Experiments on In-Line Oscillation of a Circular Cylinder with a Finite Span length
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- SUGIMOTO Takashi
- Ishikawajima-Harima Heavy Industries Co., Ltd.
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- SAITO Shinobu
- Ishikawajima-Harima Heavy Industries Co., Ltd.
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- MATSUDA Kazutoshi
- Ishikawajima-Harima Heavy Industries Co., Ltd.
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- OKAJIMA Atsushi
- Kanazawa University
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- KIWATA Takahiro
- Kanazawa University
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- KOSUGI Takashi
- Kanazawa University
Bibliographic Information
- Other Title
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- 337 3 次元円柱のインライン振動に関する水槽実験
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Abstract
Various flow-induced vibrations are caused around a bluff body by the separation flow of its surface or the vortex generated behind the body. In this study, we focused on in-line oscillation for which the direction of the oscillation corresponds to the main flow. And we used circular cylinders with a finite span length which were supported elastically in two degrees of freedom (in-line and transverse direction) in a water tunnel. Also, C_n was changed by an additional damping system. As a result, in the case of aspect ratio=20,it shows the large response amplitude in both the 1^<st> and 2^<nd> excitation region, and their Lissajous figures differ from each other between the 1^<st> peak and the 2^<nd> peak. The response amplitude in the 2^<nd> excitation region is dampened more sensitively with increasing C_n than in the 1^<st> excitation region.
Journal
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- Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D
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Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D 2002 (0), 126-, 2002-09-13
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1570572702214185088
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- NII Article ID
- 110002482890
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- NII Book ID
- AA11901770
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- ISSN
- 13480235
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- Text Lang
- ja
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- Data Source
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- CiNii Articles