Experimental Study on Flow Induced Vibration of a Cylinder with Two Degrees of Freedom Near a Rigid Wall

IMECH-IR > 力学所知识产出(1956-2008)

	Experimental Study on Flow Induced Vibration of a Cylinder with Two Degrees of Freedom Near a Rigid Wall
	Yang B(杨兵); Gao FP(高福平); Wu YX(吴应湘); Yang B
会议录名称	Proceedings Of The Eighteenth (2008) International Offshore And Polar Engineering Conference, Vol 3
	2008
页码	469-474
会议名称	18th International Offshore and Polar Engineering Conference (ISOPE 2008)
会议日期	JUL 06-11, 2008
会议地点	Vancouver, CANADA
摘要	The flow-induced vibration of a cylinder with two degrees of freedom near a rigid wall under the action of steady flow is investigated experimentally. The vibration amplitude and frequency of the cylinder and the vortex shedding frequency at the wake flow region of the cylinder are measured. The influence of gap-to-diameter ratio upon the amplitude response is analyzed. The experimental results indicate that when the reduced velocity (Vr) is in the range of 1.2 < Vr < 2.6, only streamwise vibration with small amplitude occurs, whose frequency is quite close to its natural frequency in the still water. When the reduced velocity Vr > 3.4, both the streamwise and transverse vibrations of the cylinder occur. In this range, the amplitudes of transverse vibration are much larger than those of streamwise vibrations, and the amplitudes of the streamwise vibration also get larger than those at the range of 1.2 < Vr < 2.6. At the range of Vr > 3.4, the frequency of streamwise vibration undergoes a jump at certain values of Vr, at which the streamwise vibrating frequency is twice as much as the transverse one. However, when the streamwise vibration does not experience a jump, its frequency is the same as that of the transverse vibration. The maximum values of second streamwise and transverse vibration amplitudes increase with increasing gap-to-diameter ratios.
关键词	Flow-induced Vibration Cylinder Near a Wall Two Degrees Of Freedom Streamwise Vibration Transverse Vibration Vortex-induced Vibrations Induced Oscillations
WOS记录号	WOS:000259890800068
收录类别	CPCI-S
语种	英语
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/25390
专题	力学所知识产出(1956-2008)
通讯作者	Yang B
推荐引用方式 GB/T 7714	Yang B,Gao FP,Wu YX,et al. Experimental Study on Flow Induced Vibration of a Cylinder with Two Degrees of Freedom Near a Rigid Wall[C]Proceedings Of The Eighteenth (2008) International Offshore And Polar Engineering Conference, Vol 3,2008:469-474.

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