Transverse Vibrations of a Cylinder Very Close to a Plane Wall
Transverse Vibrations of a Cylinder Very Close to a Plane Wall
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DOI：
10.1115/1.3256990
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发表时间：
1987-02
影响因子：
1.6
通讯作者：
J. Fredsøe;B. M. Sumer;J. Andersen;E. Hansen
中科院分区：
文献类型：
--
作者：
J. Fredsøe;B. M. Sumer;J. Andersen;E. Hansen
本文介绍了一系列的实验进行了一个圆柱体悬挂的弹簧和放置非常接近一个平面壁。圆筒暴露在稳定的电流中。详细研究了间隙比在0和1之间的范围。在2 ~ 10的折算速度范围内，采用不同的弹簧刚度和气缸质量组合。壁的接近被示出对管道的行为具有重要影响。其中一些趋势可以通过数学模型来解释，包括靠近壁面的升力的影响。
The paper presents a series of experiments carried out with a cylinder suspended by springs and placed very close to a plane wall. The cylinder is exposed to a steady current. The range of gap ratios between zero and one has been studied in detail. Different combinations of spring stiffness and mass of cylinder is applied in the range of reduced velocity between 2 and 10. The proximity of the wall is shown to have important influence on the behavior of the pipe. Some of these trends are explained by a mathematical model including the effect of lift force close to the wall.