摘要
讨论了在亚临介雷诺数区中并列双圆柱在均匀流场中的涡激振动现象．提出了一种有关该问题的预报模型，并计算了在两柱中心距与圆柱直径比为１．７５时的两柱动态响应值．计算结果表明：在约化速度为２．５～３．５和４．５～５．５范围内，圆柱将发生流向共振；在约化速度为４．５～６．０范围内，圆柱将发生横向共振．以上结果可为工程中圆柱结构物的设计提供参考．
The vortex-induced vibration of a pair of circular cylinders subjected to uniform crossflow is discussed.A theoretical method for forecasting this natural phenomena is given,and the dynamic response of the cylinders are calculated under the condition of that the ratio of distance between ceters and diametre of the cylinder is 1 75.The calculation results show that:in the range of 2 5<V r<3 5 or 4 5<V r<5 5,the longutiudinal responses of the cylinders will become violent,and in the range of 4 5<V r<6 0,the transverse responses of the cylinders will become larger. \ \
出处
《哈尔滨理工大学学报》
CAS
1998年第2期90-96,共7页
Journal of Harbin University of Science and Technology
关键词
振动
旋涡
水动力
圆柱
流场
vibration
vortex
hydrodynamics
circular cylinders
