【摘要】 本文设计了一个弹性支承的刚性圆柱体的振动模型.通过动态电阻应变仪及热线流速仪测量了圆柱的振动特性和圆柱尾流的变化特性.给出了振动圆柱的斯特罗哈尔数随雷诺数及折合速度变化的函数关系曲线.对不同截面的柱体振动特性作了比较.指出了圆柱在水中以及在空气中振动反应特性的差别所在.更多还原

【Abstract】 This paper presents a oscillating model consisting of a spring and a spring supported rigid circular cylinder. The vibration characteristics of circular cylinder in water flow and the features of the change of wake are measured by the dynamic strain gauges and flow meters. The Strouhal number of a vibration cylinder as a function of Reynolds number and reduced velocity is given. The difference between the vibrations of a cylinder in water and in air is pointed out.更多还原