Tests for vortex induced motions of a floating cylinder
SUN Hongyuan1,HUANG Weiping1,LI Lei1,ZHOU Yang2
1. Shandong Provincial Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao 266100, China；
2. The Second Institute of Oceanography, National Bureau of Oceanography, Hangzhou 310012, China
Abstract：In order to study vortex induced motions (VIM) response of a floating cylinder, its model tests were performed in a water flume under the reduced velocity range of 1.3 to 10.2. Considering the aspects of response amplitude and vortex shedding frequency, VIM responses of the cylinder with and without helical strakes were measured. It was shown that for the cylinder without helical strakes, “lock in” phenomena occur under the reduced velocity range of 5.5 to 8; after adding to the cylinder helical strakes to the cylinder, the effect of suppressing VIM is obvious and the phenomena of “lock in” are not obvious; under fluid-structure interaction, the VIM sway frequency of the cylinder is on longer coincident with the varying law of Strouhal frequency.
孙洪源1，黄维平1，李磊1，周阳2. 基于实验的浮式圆柱体涡激运动研究[J]. 振动与冲击, 2017, 36(3): 93-97.
SUN Hongyuan1,HUANG Weiping1,LI Lei1,ZHOU Yang2. Tests for vortex induced motions of a floating cylinder. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(3): 93-97.
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