Behavior Properties of Vertical Pipe by Vortex-Induced Vibration
- 標題
- Behavior Properties of Vertical Pipe by Vortex-Induced Vibration
- 作者
- Dong-ho Jung1), Hyeon-ju Kim, Seung-ho Shin, Seung-won Lee, Deok-soo Moon, Ho-sang Lee
- 文件屬性
- 日本研究
- 知識分類
- 基礎研究
- 出版年
- 2010
- 刊名
- 海洋深層水研究
- 卷
- 11
- 期
- 1
- 頁
- P Abs01_27
- 點閱數
- 12004
摘要
The object of this study is to develop a tool to analyze the VIV (vortex-induced vibration) of a slender marine structure. This study aims to develop a numerical analysis model for estimating VIV phenomena using a 3D structural analysis program for a multi-degree-of-freedom of slender marine structures. The proposed numerical simulation model evaluates the reduced velocity at a certain flow speed and calculates the inline external force component after determining the unstable zone. The model analyzes the VIV properties of a tensioned beam by applying the external forces in both the inline and cross-flow directions based on the relative velocity.
By evaluating the displacement trajectories that correspond to the nodes, we analyze the phase difference between the inline and cross-flow directions.
By evaluating the displacement trajectories that correspond to the nodes, we analyze the phase difference between the inline and cross-flow directions.