Flow induced vibration of a flexible rod adjacent to a cylinder

Keiji Yoshimura; Hiroki Mori; Takuo Nagamine; Masahiro Nogami; Yuichi Sato

doi:10.1299/kikaic.75.1926

Flow induced vibration of a flexible rod adjacent to a cylinder

Keiji Yoshimura, Hiroki Mori, Takuo Nagamine, Masahiro Nogami, Yuichi Sato

Research output: Contribution to journal › Article › peer-review

Abstract

To clarify the mechanism of observed violent vibration of a brace adjacent to a high circular stack, experimental study was performed. A test apparatus consists of a vertical flexible rod placed close to a large solid cylinder. Accordingly, airflow makes the rod whirl at its first natural angular frequency. Whirling motion grows as airflow velocity increases. Whirling direction depends on a relative location to the cylinder and not on airflow velocity. Further, analytical study was done by assuming the flow past the cylinder is frictionless, irrotational and incompressible. Analytical results show fairly good agreement with experimental ones as well as the actual brace vibration.

Original language	English
Pages (from-to)	1926-1933
Number of pages	8
Journal	Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume	75
Issue number	755
DOIs	https://doi.org/10.1299/kikaic.75.1926
Publication status	Published - Jul 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1299/kikaic.75.1926

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title = "Flow induced vibration of a flexible rod adjacent to a cylinder",

abstract = "To clarify the mechanism of observed violent vibration of a brace adjacent to a high circular stack, experimental study was performed. A test apparatus consists of a vertical flexible rod placed close to a large solid cylinder. Accordingly, airflow makes the rod whirl at its first natural angular frequency. Whirling motion grows as airflow velocity increases. Whirling direction depends on a relative location to the cylinder and not on airflow velocity. Further, analytical study was done by assuming the flow past the cylinder is frictionless, irrotational and incompressible. Analytical results show fairly good agreement with experimental ones as well as the actual brace vibration.",

author = "Keiji Yoshimura and Hiroki Mori and Takuo Nagamine and Masahiro Nogami and Yuichi Sato",

year = "2009",

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doi = "10.1299/kikaic.75.1926",

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publisher = "The Japan Society of Mechanical Engineers",

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TY - JOUR

T1 - Flow induced vibration of a flexible rod adjacent to a cylinder

AU - Yoshimura, Keiji

AU - Mori, Hiroki

AU - Nagamine, Takuo

AU - Nogami, Masahiro

AU - Sato, Yuichi

PY - 2009/7

Y1 - 2009/7

N2 - To clarify the mechanism of observed violent vibration of a brace adjacent to a high circular stack, experimental study was performed. A test apparatus consists of a vertical flexible rod placed close to a large solid cylinder. Accordingly, airflow makes the rod whirl at its first natural angular frequency. Whirling motion grows as airflow velocity increases. Whirling direction depends on a relative location to the cylinder and not on airflow velocity. Further, analytical study was done by assuming the flow past the cylinder is frictionless, irrotational and incompressible. Analytical results show fairly good agreement with experimental ones as well as the actual brace vibration.

AB - To clarify the mechanism of observed violent vibration of a brace adjacent to a high circular stack, experimental study was performed. A test apparatus consists of a vertical flexible rod placed close to a large solid cylinder. Accordingly, airflow makes the rod whirl at its first natural angular frequency. Whirling motion grows as airflow velocity increases. Whirling direction depends on a relative location to the cylinder and not on airflow velocity. Further, analytical study was done by assuming the flow past the cylinder is frictionless, irrotational and incompressible. Analytical results show fairly good agreement with experimental ones as well as the actual brace vibration.

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JO - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

JF - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

IS - 755

ER -

Flow induced vibration of a flexible rod adjacent to a cylinder

Abstract

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