【摘要】 介绍了在湖中水下拖缆涡激振动测试装置和实验方法。数据分析表明：拖缆的涡激振动响应主要集中在 １００ Ｈｚ 以下低频范围；随着拖曳速度的增大拖缆上的加速度响应的频率范围也相应增大；拖缆的涡激振动响应的第一峰值频率与拖缆上端的旋涡发放频率有比较直接的联系；实验中未观察到频率锁定现象更多还原

【Abstract】 In this paper, an experiment of the vortex induced vibration of an underwater cable, which is carried out in a lake is introduced, including the experimental apparatus and approach.Data analysis indicates that the vortex induced vibration is chiefly below 100 Hz and the frequency band of the vibration expands with the increase of the towing velocoty of the cable. It also shows that the frequency at first peak has more direct relations to the vortex shedding frequency of the upper cable. No frequency lock in phenomenon was observed in the experiment.更多还原