利用流致振动进行海流能发电是当前可再生能源研究的重点，用磁悬浮支撑代替金属弹簧提供弹性回复力能有效延长装置使用寿命。本文基于等效磁荷法对永磁体间磁力求解，构造磁力弹簧位移函数，将磁力函数代入到STAR-CCM+中利用流固双向耦合法对单圆柱振子进行计算，研究磁悬浮支撑单圆柱振子在不同流速下的振动响应。结果表明：永磁弹簧压缩量为1.2D情况下，l=0.06 m的振子在0.4～1 m/s流速区间内能够保持较高的振幅与频率，l=0.07 m和l=0.08 m的振子在0.8～1 m/s流速区间内的频率较大，能达到2.6 Hz。
Ocean current power generation by flow induced vibration is the focus of current renewable energy research. Using magnetic suspension support instead of metal spring to provide elastic restoring force can effectively prolong the service life of the device. In this paper, the magnetic force between permanent magnets is solved based on the equivalent magnetic charge method, the magnetic spring displacement function is constructed, the magnetic force function is substituted into STAR-CCM+, the single cylinder vibrator is calculated by the fluid solid two-way coupling method, and the vibration response of the single cylinder vibrator supported by magnetic suspension under different flow velocities is studied. The results show that when the compression of the permanent magnetic spring is 1.2D, the vibrator with L = 0.06 m can maintain high amplitude and frequency in the velocity range of 0.4～1 m/s, and the vibrator with l = 0.07 m and l=0.08 m has large frequency in the velocity range of 0.8～1 m/s, which can reach 2.6 Hz.
2023,45(4): 14-17 收稿日期：2021-12-13
DOI：10.3404/j.issn.1672-7649.2023.04.003
分类号：U661.3
基金项目：江苏省自然科学基金面上项目（BK20211342）；江苏省“六大人才高峰”高层次人才资助项目（2018-KTHY-033）
作者简介：邵禄宇(1995-),男,硕士,主要从事海洋可再生能源利用技术研究
