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本文针对T/D=1.75、2.5、3.5并列弹性双圆柱在均匀流场中的动态特性进行了实验研究.测出了两柱在横向及流向的动态响应.经分析,本文给出了两圆柱在横向及流向的振动频率及振幅随两柱间距及约化速度的变化关系.同时对弹性柱的Strouhal数给予了适当的讨论.
In this paper, the dynamic characteristics of T / D = 1.75,2.5,3.5 parallel elastic double cylinders in a uniform flow field are investigated experimentally and the dynamic responses of the two columns in the transverse direction and the flow direction are obtained.After analysis, The vibration frequencies and amplitudes along the horizontal and vertical directions vary with the spacing between two columns and the decelerated velocity, and the Strouhal numbers of the elastic columns are also discussed.